# -*- coding: utf-8 -*-
# Part of Odoo. See LICENSE file for full copyright and licensing details.

from datetime import timedelta

from odoo.exceptions import UserError
from odoo.fields import Datetime
from odoo.tests.common import Form, TransactionCase
from odoo import Command


def _create_accounting_data(env):
    """Create the accounts and journals used in stock valuation.

    :param env: environment used to create the records
    :return: an input account, an output account, a valuation account, an expense account, a stock journal
    """
    stock_input_account = env['account.account'].create({
        'name': 'Stock Input',
        'code': 'StockIn',
        'account_type': 'asset_current',
        'reconcile': True,
    })
    stock_output_account = env['account.account'].create({
        'name': 'Stock Output',
        'code': 'StockOut',
        'account_type': 'asset_current',
        'reconcile': True,
    })
    stock_valuation_account = env['account.account'].create({
        'name': 'Stock Valuation',
        'code': 'StockValuation',
        'account_type': 'asset_current',
        'reconcile': True,
    })
    expense_account = env['account.account'].create({
        'name': 'Expense Account',
        'code': 'ExpenseAccount',
        'account_type': 'expense',
        'reconcile': True,
    })
    stock_journal = env['account.journal'].create({
        'name': 'Stock Journal',
        'code': 'STJTEST',
        'type': 'general',
    })
    return stock_input_account, stock_output_account, stock_valuation_account, expense_account, stock_journal


class TestStockValuation(TransactionCase):
    @classmethod
    def setUpClass(cls):
        super(TestStockValuation, cls).setUpClass()
        cls.env.ref('base.EUR').active = True
        cls.stock_location = cls.env.ref('stock.stock_location_stock')
        cls.customer_location = cls.env.ref('stock.stock_location_customers')
        cls.supplier_location = cls.env.ref('stock.stock_location_suppliers')
        cls.partner = cls.env['res.partner'].create({'name': 'xxx'})
        cls.owner1 = cls.env['res.partner'].create({'name': 'owner1'})
        cls.uom_unit = cls.env.ref('uom.product_uom_unit')
        cls.product1 = cls.env['product.product'].create({
            'name': 'Product A',
            'type': 'product',
            'default_code': 'prda',
            'categ_id': cls.env.ref('product.product_category_all').id,
        })
        cls.product2 = cls.env['product.product'].create({
            'name': 'Product B',
            'type': 'product',
            'categ_id': cls.env.ref('product.product_category_all').id,
        })
        cls.inventory_user = cls.env['res.users'].create({
            'name': 'Pauline Poivraisselle',
            'login': 'pauline',
            'email': 'p.p@example.com',
            'notification_type': 'inbox',
            'groups_id': [(6, 0, [cls.env.ref('stock.group_stock_user').id])]
        })

        cls.stock_input_account, cls.stock_output_account, cls.stock_valuation_account, cls.expense_account, cls.stock_journal = _create_accounting_data(cls.env)
        cls.product1.categ_id.property_valuation = 'real_time'
        cls.product2.categ_id.property_valuation = 'real_time'
        cls.product1.write({
            'property_account_expense_id': cls.expense_account.id,
        })
        cls.product1.categ_id.write({
            'property_stock_account_input_categ_id': cls.stock_input_account.id,
            'property_stock_account_output_categ_id': cls.stock_output_account.id,
            'property_stock_valuation_account_id': cls.stock_valuation_account.id,
            'property_stock_journal': cls.stock_journal.id,
        })

    def _get_stock_input_move_lines(self):
        return self.env['account.move.line'].search([
            ('account_id', '=', self.stock_input_account.id),
        ], order='date, id')

    def _get_stock_output_move_lines(self):
        return self.env['account.move.line'].search([
            ('account_id', '=', self.stock_output_account.id),
        ], order='date, id')

    def _get_stock_valuation_move_lines(self):
        return self.env['account.move.line'].search([
            ('account_id', '=', self.stock_valuation_account.id),
        ], order='date, id')


    def _make_in_move(self, product, quantity, unit_cost=None):
        """ Helper to create and validate a receipt move.
        """
        unit_cost = unit_cost or product.standard_price
        in_move = self.env['stock.move'].create({
            'name': 'in %s units @ %s per unit' % (str(quantity), str(unit_cost)),
            'product_id': product.id,
            'location_id': self.env.ref('stock.stock_location_suppliers').id,
            'location_dest_id': self.env.ref('stock.stock_location_stock').id,
            'product_uom': self.env.ref('uom.product_uom_unit').id,
            'product_uom_qty': quantity,
            'price_unit': unit_cost,
            'picking_type_id': self.env.ref('stock.picking_type_in').id,
        })

        in_move._action_confirm()
        in_move._action_assign()
        in_move.move_line_ids.qty_done = quantity
        in_move._action_done()

        return in_move.with_context(svl=True)

    def _make_out_move(self, product, quantity):
        """ Helper to create and validate a delivery move.
        """
        out_move = self.env['stock.move'].create({
            'name': 'out %s units' % str(quantity),
            'product_id': product.id,
            'location_id': self.env.ref('stock.stock_location_stock').id,
            'location_dest_id': self.env.ref('stock.stock_location_customers').id,
            'product_uom': self.env.ref('uom.product_uom_unit').id,
            'product_uom_qty': quantity,
            'picking_type_id': self.env.ref('stock.picking_type_out').id,
        })
        out_move._action_confirm()
        out_move._action_assign()
        out_move.quantity_done = quantity
        out_move._action_done()
        return out_move.with_context(svl=True)

    def test_realtime(self):
        """ Stock moves update stock value with product x cost price,
        price change updates the stock value based on current stock level.
        """
        # Enter 10 products while price is 5.0
        self.product1.standard_price = 5.0
        move1 = self.env['stock.move'].create({
            'name': 'IN 10 units @ 10.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10.0
        move1._action_done()

        # Set price to 6.0
        self.product1.standard_price = 6.0
        stock_aml, price_change_aml = self._get_stock_valuation_move_lines()
        self.assertEqual(stock_aml.debit, 50)
        self.assertEqual(price_change_aml.debit, 10)
        self.assertEqual(price_change_aml.ref, 'prda')
        self.assertEqual(price_change_aml.product_id, self.product1)

    def test_realtime_consumable(self):
        """ An automatic consumable product should not create any account move entries"""
        # Enter 10 products while price is 5.0
        self.product1.standard_price = 5.0
        self.product1.type = 'consu'
        move1 = self.env['stock.move'].create({
            'name': 'IN 10 units @ 10.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10.0
        move1._action_done()
        self.assertTrue(move1.stock_valuation_layer_ids)
        self.assertFalse(move1.stock_valuation_layer_ids.account_move_id)

    def test_fifo_perpetual_1(self):
        self.product1.categ_id.property_cost_method = 'fifo'

        # ---------------------------------------------------------------------
        # receive 10 units @ 10.00 per unit
        # ---------------------------------------------------------------------
        move1 = self.env['stock.move'].create({
            'name': 'IN 10 units @ 10.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10.0,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10.0
        move1._action_done()

        # stock_account values for move1
        self.assertEqual(move1.stock_valuation_layer_ids.unit_cost, 10.0)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 10.0)
        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)

        # account values for move1
        input_aml = self._get_stock_input_move_lines()
        self.assertEqual(len(input_aml), 1)
        move1_input_aml = input_aml[-1]
        self.assertEqual(move1_input_aml.debit, 0)
        self.assertEqual(move1_input_aml.credit, 100)

        valuation_aml = self._get_stock_valuation_move_lines()
        move1_valuation_aml = valuation_aml[-1]
        self.assertEqual(len(valuation_aml), 1)
        self.assertEqual(move1_valuation_aml.debit, 100)
        self.assertEqual(move1_valuation_aml.credit, 0)
        self.assertEqual(move1_valuation_aml.product_id.id, self.product1.id)
        self.assertEqual(move1_valuation_aml.quantity, 10)
        self.assertEqual(move1_valuation_aml.product_uom_id.id, self.uom_unit.id)

        output_aml = self._get_stock_output_move_lines()
        self.assertEqual(len(output_aml), 0)

        # ---------------------------------------------------------------------
        # receive 10 units @ 8.00 per unit
        # ---------------------------------------------------------------------
        move2 = self.env['stock.move'].create({
            'name': 'IN 10 units @ 8.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 8.0,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 10.0
        move2._action_done()

        # stock_account values for move2
        self.assertEqual(move2.stock_valuation_layer_ids.unit_cost, 8.0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 10.0)
        self.assertEqual(move2.stock_valuation_layer_ids.value, 80.0)

        # account values for move2
        input_aml = self._get_stock_input_move_lines()
        self.assertEqual(len(input_aml), 2)
        move2_input_aml = input_aml[-1]
        self.assertEqual(move2_input_aml.debit, 0)
        self.assertEqual(move2_input_aml.credit, 80)

        valuation_aml = self._get_stock_valuation_move_lines()
        move2_valuation_aml = valuation_aml[-1]
        self.assertEqual(len(valuation_aml), 2)
        self.assertEqual(move2_valuation_aml.debit, 80)
        self.assertEqual(move2_valuation_aml.credit, 0)
        self.assertEqual(move2_valuation_aml.product_id.id, self.product1.id)
        self.assertEqual(move2_valuation_aml.quantity, 10)
        self.assertEqual(move2_valuation_aml.product_uom_id.id, self.uom_unit.id)

        output_aml = self._get_stock_output_move_lines()
        self.assertEqual(len(output_aml), 0)

        # ---------------------------------------------------------------------
        # sale 3 units
        # ---------------------------------------------------------------------
        move3 = self.env['stock.move'].create({
            'name': 'Sale 3 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 3.0,
        })
        move3._action_confirm()
        move3._action_assign()
        move3.move_line_ids.qty_done = 3.0
        move3._action_done()

        # stock_account values for move3
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out move
        self.assertEqual(move3.stock_valuation_layer_ids.value, -30.0)  # took 3 items from move 1 @ 10.00 per unit

        # account values for move3
        input_aml = self._get_stock_input_move_lines()
        self.assertEqual(len(input_aml), 2)

        valuation_aml = self._get_stock_valuation_move_lines()
        move3_valuation_aml = valuation_aml[-1]
        self.assertEqual(len(valuation_aml), 3)
        self.assertEqual(move3_valuation_aml.debit, 0)
        self.assertEqual(move3_valuation_aml.credit, 30)
        self.assertEqual(move3_valuation_aml.product_id.id, self.product1.id)
        # FIXME sle
        #self.assertEqual(move3_valuation_aml.quantity, -3)
        self.assertEqual(move3_valuation_aml.product_uom_id.id, self.uom_unit.id)

        output_aml = self._get_stock_output_move_lines()
        move3_output_aml = output_aml[-1]
        self.assertEqual(len(output_aml), 1)
        self.assertEqual(move3_output_aml.debit, 30)
        self.assertEqual(move3_output_aml.credit, 0)

        # ---------------------------------------------------------------------
        # Increase received quantity of move1 from 10 to 12, it should create
        # a new stock layer at the top of the queue.
        # ---------------------------------------------------------------------
        move1.quantity_done = 12

        # stock_account values for move3
        self.assertEqual(move1.stock_valuation_layer_ids.sorted()[-1].unit_cost, 10.0)
        self.assertEqual(sum(move1.stock_valuation_layer_ids.mapped('remaining_qty')), 9.0)
        self.assertEqual(sum(move1.stock_valuation_layer_ids.mapped('value')), 120.0)  # move 1 is now 10@10 + 2@10

        # account values for move1
        input_aml = self._get_stock_input_move_lines()
        self.assertEqual(len(input_aml), 3)
        move1_correction_input_aml = input_aml[-1]
        self.assertEqual(move1_correction_input_aml.debit, 0)
        self.assertEqual(move1_correction_input_aml.credit, 20)

        valuation_aml = self._get_stock_valuation_move_lines()
        move1_correction_valuation_aml = valuation_aml[-1]
        self.assertEqual(len(valuation_aml), 4)
        self.assertEqual(move1_correction_valuation_aml.debit, 20)
        self.assertEqual(move1_correction_valuation_aml.credit, 0)
        self.assertEqual(move1_correction_valuation_aml.product_id.id, self.product1.id)
        self.assertEqual(move1_correction_valuation_aml.quantity, 2)
        self.assertEqual(move1_correction_valuation_aml.product_uom_id.id, self.uom_unit.id)

        output_aml = self._get_stock_output_move_lines()
        self.assertEqual(len(output_aml), 1)

        # ---------------------------------------------------------------------
        # Sale 9 units, the units available from the previous increase are not sent
        # immediately as the new layer is at the top of the queue.
        # ---------------------------------------------------------------------
        move4 = self.env['stock.move'].create({
            'name': 'Sale 9 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 9.0,
        })
        move4._action_confirm()
        move4._action_assign()
        move4.move_line_ids.qty_done = 9.0
        move4._action_done()

        # stock_account values for move4
        self.assertEqual(move4.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out move
        self.assertEqual(move4.stock_valuation_layer_ids.value, -86.0)  # took 9 items from move 1 @ 10.00 per unit

        # account values for move4
        input_aml = self._get_stock_input_move_lines()
        self.assertEqual(len(input_aml), 3)

        valuation_aml = self._get_stock_valuation_move_lines()
        move4_valuation_aml = valuation_aml[-1]
        self.assertEqual(len(valuation_aml), 5)
        self.assertEqual(move4_valuation_aml.debit, 0)
        self.assertEqual(move4_valuation_aml.credit, 86)
        self.assertEqual(move4_valuation_aml.product_id.id, self.product1.id)
        # FIXME sle
        #self.assertEqual(move4_valuation_aml.quantity, -9)
        self.assertEqual(move4_valuation_aml.product_uom_id.id, self.uom_unit.id)

        output_aml = self._get_stock_output_move_lines()
        move4_output_aml = output_aml[-1]
        self.assertEqual(len(output_aml), 2)
        self.assertEqual(move4_output_aml.debit, 86)
        self.assertEqual(move4_output_aml.credit, 0)

        # ---------------------------------------------------------------------
        # Sale 20 units, we fall in negative stock for 10 units. Theses are
        # valued at the last FIFO cost and the total is negative.
        # ---------------------------------------------------------------------
        move5 = self.env['stock.move'].create({
            'name': 'Sale 20 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 20.0,
        })
        move5._action_confirm()
        move5._action_assign()
        move5.move_line_ids.qty_done = 20.0
        move5._action_done()

        # stock_account values for move5
        # (took 8 from the second receipt and 2 from the increase of the first receipt)
        self.assertEqual(move5.stock_valuation_layer_ids.remaining_qty, -10.0)
        self.assertEqual(move5.stock_valuation_layer_ids.value, -184.0)

        # account values for move5
        input_aml = self._get_stock_input_move_lines()
        self.assertEqual(len(input_aml), 3)

        valuation_aml = self._get_stock_valuation_move_lines()
        move5_valuation_aml = valuation_aml[-1]
        self.assertEqual(len(valuation_aml), 6)
        self.assertEqual(move5_valuation_aml.debit, 0)
        self.assertEqual(move5_valuation_aml.credit, 184)
        self.assertEqual(move5_valuation_aml.product_id.id, self.product1.id)
        #self.assertEqual(move5_valuation_aml.quantity, -20)
        self.assertEqual(move5_valuation_aml.product_uom_id.id, self.uom_unit.id)

        output_aml = self._get_stock_output_move_lines()
        move5_output_aml = output_aml[-1]
        self.assertEqual(len(output_aml), 3)
        self.assertEqual(move5_output_aml.debit, 184)
        self.assertEqual(move5_output_aml.credit, 0)

        # ---------------------------------------------------------------------
        # Receive 10 units @ 12.00 to counterbalance the negative, the vacuum
        # will be called directly: 10@10 should be revalued 10@12
        # ---------------------------------------------------------------------
        move6 = self.env['stock.move'].create({
            'name': 'IN 10 units @ 12.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 12.0,
        })
        move6._action_confirm()
        move6._action_assign()
        move6.move_line_ids.qty_done = 10.0
        move6._action_done()

        # stock_account values for move6
        self.assertEqual(move6.stock_valuation_layer_ids.unit_cost, 12.0)
        self.assertEqual(move6.stock_valuation_layer_ids.remaining_qty, 0.0)  # already consumed by the next vacuum
        self.assertEqual(move6.stock_valuation_layer_ids.value, 120)

        # vacuum aml, 10@10 should have been 10@12, get rid of 20
        valuation_aml = self._get_stock_valuation_move_lines()
        vacuum_valuation_aml = valuation_aml[-1]
        self.assertEqual(len(valuation_aml), 8)
        self.assertEqual(vacuum_valuation_aml.balance, -20)
        self.assertEqual(vacuum_valuation_aml.product_id.id, self.product1.id)
        self.assertEqual(vacuum_valuation_aml.quantity, 0)
        self.assertEqual(vacuum_valuation_aml.product_uom_id.id, self.uom_unit.id)

        output_aml = self._get_stock_output_move_lines()
        vacuum_output_aml = output_aml[-1]
        self.assertEqual(len(output_aml), 4)
        self.assertEqual(vacuum_output_aml.balance, 20)

        # ---------------------------------------------------------------------
        # Edit move6, receive less: 2 in negative stock
        # ---------------------------------------------------------------------
        move6.quantity_done = 8

        # stock_account values for move6
        self.assertEqual(move6.stock_valuation_layer_ids.sorted()[-1].remaining_qty, -2)
        self.assertEqual(move6.stock_valuation_layer_ids.sorted()[-1].value, -20)

        # account values for move1
        input_aml = self._get_stock_input_move_lines()
        move6_correction_input_aml = input_aml[-1]
        self.assertEqual(move6_correction_input_aml.debit, 20)
        self.assertEqual(move6_correction_input_aml.credit, 0)

        valuation_aml = self._get_stock_valuation_move_lines()
        move6_correction_valuation_aml = valuation_aml[-1]
        self.assertEqual(move6_correction_valuation_aml.debit, 0)
        self.assertEqual(move6_correction_valuation_aml.credit, 20)
        self.assertEqual(move6_correction_valuation_aml.product_id.id, self.product1.id)
        # FIXME sle
        #self.assertEqual(move6_correction_valuation_aml.quantity, -2)
        self.assertEqual(move6_correction_valuation_aml.product_uom_id.id, self.uom_unit.id)

        # -----------------------------------------------------------
        # receive 4 to counterbalance now
        # -----------------------------------------------------------
        move7 = self.env['stock.move'].create({
            'name': 'IN 4 units @ 15.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 4.0,
            'price_unit': 15.0,
        })
        move7._action_confirm()
        move7._action_assign()
        move7.move_line_ids.qty_done = 4.0
        move7._action_done()

        # account values after vacuum
        input_aml = self._get_stock_input_move_lines()
        self.assertEqual(len(input_aml), 7)
        move6_correction2_input_aml = input_aml[-1]
        self.assertEqual(move6_correction2_input_aml.debit, 10)
        self.assertEqual(move6_correction2_input_aml.credit, 0)

        valuation_aml = self._get_stock_valuation_move_lines()
        move6_correction2_valuation_aml = valuation_aml[-1]
        self.assertEqual(len(valuation_aml), 11)
        self.assertEqual(move6_correction2_valuation_aml.debit, 0)
        self.assertEqual(move6_correction2_valuation_aml.credit, 10)
        self.assertEqual(move6_correction2_valuation_aml.product_id.id, self.product1.id)
        self.assertEqual(move6_correction2_valuation_aml.quantity, 0)
        self.assertEqual(move6_correction_valuation_aml.product_uom_id.id, self.uom_unit.id)

        # ---------------------------------------------------------------------
        # Ending
        # ---------------------------------------------------------------------
        self.assertEqual(self.product1.quantity_svl, 2)
        self.assertEqual(self.product1.value_svl, 30)
        # check on accounting entries
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('debit')), 30)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('credit')), 380)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('debit')), 380)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('credit')), 350)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('debit')), 320)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('credit')), 0)

    def test_fifo_perpetual_2(self):
        """ Normal fifo flow (no negative handling) """
        # http://accountingexplained.com/financial/inventories/fifo-method
        self.product1.categ_id.property_cost_method = 'fifo'

        # Beginning Inventory: 68 units @ 15.00 per unit
        move1 = self.env['stock.move'].create({
            'name': '68 units @ 15.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 68.0,
            'price_unit': 15,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 68.0
        move1._action_done()

        self.assertEqual(move1.stock_valuation_layer_ids.value, 1020.0)

        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 68.0)

        # Purchase 140 units @ 15.50 per unit
        move2 = self.env['stock.move'].create({
            'name': '140 units @ 15.50 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 140.0,
            'price_unit': 15.50,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 140.0
        move2._action_done()

        self.assertEqual(move2.stock_valuation_layer_ids.value, 2170.0)

        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 68.0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 140.0)

        # Sale 94 units @ 19.00 per unit
        move3 = self.env['stock.move'].create({
            'name': 'Sale 94 units @ 19.00 per unit',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 94.0,
        })
        move3._action_confirm()
        move3._action_assign()
        move3.move_line_ids.qty_done = 94.0
        move3._action_done()


        # note: it' ll have to get 68 units from the first batch and 26 from the second one
        # so its value should be -((68*15) + (26*15.5)) = -1423
        self.assertEqual(move3.stock_valuation_layer_ids.value, -1423.0)

        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 114)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves

        # Purchase 40 units @ 16.00 per unit
        move4 = self.env['stock.move'].create({
            'name': '140 units @ 15.50 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 40.0,
            'price_unit': 16,
        })
        move4._action_confirm()
        move4._action_assign()
        move4.move_line_ids.qty_done = 40.0
        move4._action_done()

        self.assertEqual(move4.stock_valuation_layer_ids.value, 640.0)

        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 114)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves
        self.assertEqual(move4.stock_valuation_layer_ids.remaining_qty, 40.0)

        # Purchase 78 units @ 16.50 per unit
        move5 = self.env['stock.move'].create({
            'name': 'Purchase 78 units @ 16.50 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 78.0,
            'price_unit': 16.5,
        })
        move5._action_confirm()
        move5._action_assign()
        move5.move_line_ids.qty_done = 78.0
        move5._action_done()

        self.assertEqual(move5.stock_valuation_layer_ids.value, 1287.0)

        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 114)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves
        self.assertEqual(move4.stock_valuation_layer_ids.remaining_qty, 40.0)
        self.assertEqual(move5.stock_valuation_layer_ids.remaining_qty, 78.0)

        # Sale 116 units @ 19.50 per unit
        move6 = self.env['stock.move'].create({
            'name': 'Sale 116 units @ 19.50 per unit',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 116.0,
        })
        move6._action_confirm()
        move6._action_assign()
        move6.move_line_ids.qty_done = 116.0
        move6._action_done()

        # note: it' ll have to get 114 units from the move2 and 2 from move4
        # so its value should be -((114*15.5) + (2*16)) = 1735
        self.assertEqual(move6.stock_valuation_layer_ids.value, -1799.0)

        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves
        self.assertEqual(move4.stock_valuation_layer_ids.remaining_qty, 38.0)
        self.assertEqual(move5.stock_valuation_layer_ids.remaining_qty, 78.0)
        self.assertEqual(move6.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves

        # Sale 62 units @ 21 per unit
        move7 = self.env['stock.move'].create({
            'name': 'Sale 62 units @ 21 per unit',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 62.0,
        })
        move7._action_confirm()
        move7._action_assign()
        move7.move_line_ids.qty_done = 62.0
        move7._action_done()

        # note: it' ll have to get 38 units from the move4 and 24 from move5
        # so its value should be -((38*16) + (24*16.5)) = 608 + 396
        self.assertEqual(move7.stock_valuation_layer_ids.value, -1004.0)

        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves
        self.assertEqual(move4.stock_valuation_layer_ids.remaining_qty, 0.0)
        self.assertEqual(move5.stock_valuation_layer_ids.remaining_qty, 54.0)
        self.assertEqual(move6.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves
        self.assertEqual(move7.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves

        # send 10 units in our transit location, the valorisation should not be impacted
        transit_location = self.env['stock.location'].search([
            ('company_id', '=', self.env.company.id),
            ('usage', '=', 'transit'),
            ('active', '=', False)
        ], limit=1)
        transit_location.active = True
        move8 = self.env['stock.move'].create({
            'name': 'Send 10 units in transit',
            'location_id': self.stock_location.id,
            'location_dest_id': transit_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
        })
        move8._action_confirm()
        move8._action_assign()
        move8.move_line_ids.qty_done = 10.0
        move8._action_done()

        self.assertEqual(move8.stock_valuation_layer_ids.value, 0.0)

        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves
        self.assertEqual(move4.stock_valuation_layer_ids.remaining_qty, 0.0)
        self.assertEqual(move5.stock_valuation_layer_ids.remaining_qty, 54.0)
        self.assertEqual(move6.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves
        self.assertEqual(move7.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves
        self.assertEqual(move8.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in internal moves

        # Sale 10 units @ 16.5 per unit
        move9 = self.env['stock.move'].create({
            'name': 'Sale 10 units @ 16.5 per unit',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
        })
        move9._action_confirm()
        move9._action_assign()
        move9.move_line_ids.qty_done = 10.0
        move9._action_done()

        # note: it' ll have to get 10 units from move5 so its value should
        # be -(10*16.50) = -165
        self.assertEqual(move9.stock_valuation_layer_ids.value, -165.0)

        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves
        self.assertEqual(move4.stock_valuation_layer_ids.remaining_qty, 0.0)
        self.assertEqual(move5.stock_valuation_layer_ids.remaining_qty, 44.0)
        self.assertEqual(move6.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves
        self.assertEqual(move7.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves
        self.assertEqual(move8.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in internal moves
        self.assertEqual(move9.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves

    def test_fifo_perpetual_3(self):
        """ Normal fifo flow (no negative handling) """
        self.product1.categ_id.property_cost_method = 'fifo'

        # in 10 @ 100
        move1 = self.env['stock.move'].create({
            'name': 'in 10 @ 100',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 100,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10.0
        move1._action_done()

        self.assertEqual(move1.stock_valuation_layer_ids.value, 1000.0)

        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 10.0)

        # in 10 @ 80
        move2 = self.env['stock.move'].create({
            'name': 'in 10 @ 80',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 80,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 10.0
        move2._action_done()

        self.assertEqual(move2.stock_valuation_layer_ids.value, 800.0)

        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 10.0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 10.0)

        # out 15
        move3 = self.env['stock.move'].create({
            'name': 'out 15',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 15.0,
        })
        move3._action_confirm()
        move3._action_assign()
        move3.move_line_ids.qty_done = 15.0
        move3._action_done()


        # note: it' ll have to get 10 units from move1 and 5 from move2
        # so its value should be -((10*100) + (5*80)) = -1423
        self.assertEqual(move3.stock_valuation_layer_ids.value, -1400.0)

        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 5)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves

        # in 5 @ 60
        move4 = self.env['stock.move'].create({
            'name': 'in 5 @ 60',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 5.0,
            'price_unit': 60,
        })
        move4._action_confirm()
        move4._action_assign()
        move4.move_line_ids.qty_done = 5.0
        move4._action_done()

        self.assertEqual(move4.stock_valuation_layer_ids.value, 300.0)

        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 5)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves
        self.assertEqual(move4.stock_valuation_layer_ids.remaining_qty, 5.0)

        # out 7
        move5 = self.env['stock.move'].create({
            'name': 'out 7',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 7.0,
        })
        move5._action_confirm()
        move5._action_assign()
        move5.move_line_ids.qty_done = 7.0
        move5._action_done()

        # note: it' ll have to get 5 units from the move2 and 2 from move4
        # so its value should be -((5*80) + (2*60)) = 520
        self.assertEqual(move5.stock_valuation_layer_ids.value, -520.0)

        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves
        self.assertEqual(move4.stock_valuation_layer_ids.remaining_qty, 3.0)
        self.assertEqual(move5.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves

    def test_fifo_perpetual_4(self):
        """ Fifo and return handling. """
        self.product1.categ_id.property_cost_method = 'fifo'

        # in 8 @ 10
        move1 = self.env['stock.move'].create({
            'name': 'in 8 @ 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 8.0,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 8.0
        move1._action_done()

        self.assertEqual(move1.stock_valuation_layer_ids.value, 80.0)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 8.0)

        # in 4 @ 16
        move2 = self.env['stock.move'].create({
            'name': 'in 4 @ 16',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 4.0,
            'price_unit': 16,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 4.0
        move2._action_done()


        self.assertEqual(move2.stock_valuation_layer_ids.value, 64)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 4.0)

        # out 10
        out_pick = self.env['stock.picking'].create({
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'partner_id': self.env['res.partner'].search([], limit=1).id,
            'picking_type_id': self.env.ref('stock.picking_type_out').id,
        })
        move3 = self.env['stock.move'].create({
            'name': 'out 10',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'picking_id': out_pick.id,
        })
        move3._action_confirm()
        move3._action_assign()
        move3.move_line_ids.qty_done = 10.0
        move3._action_done()


        # note: it' ll have to get 8 units from move1 and 2 from move2
        # so its value should be -((8*10) + (2*16)) = -116
        self.assertEqual(move3.stock_valuation_layer_ids.value, -112.0)

        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 2)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves

        # in 2 @ 6
        move4 = self.env['stock.move'].create({
            'name': 'in 2 @ 6',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 2.0,
            'price_unit': 6,
        })
        move4._action_confirm()
        move4._action_assign()
        move4.move_line_ids.qty_done = 2.0
        move4._action_done()

        self.assertEqual(move4.stock_valuation_layer_ids.value, 12.0)

        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 2)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in out moves
        self.assertEqual(move4.stock_valuation_layer_ids.remaining_qty, 2.0)

        self.assertEqual(self.product1.standard_price, 16)

        # return
        stock_return_picking_form = Form(self.env['stock.return.picking']
            .with_context(active_ids=out_pick.ids, active_id=out_pick.ids[0],
            active_model='stock.picking'))
        stock_return_picking = stock_return_picking_form.save()
        stock_return_picking.product_return_moves.quantity = 1.0 # Return only 2
        stock_return_picking_action = stock_return_picking.create_returns()
        return_pick = self.env['stock.picking'].browse(stock_return_picking_action['res_id'])
        return_pick.move_ids[0].move_line_ids[0].qty_done = 1.0
        return_pick.with_user(self.inventory_user)._action_done()

        self.assertEqual(self.product1.standard_price, 16)

        self.assertAlmostEqual(return_pick.move_ids.stock_valuation_layer_ids.unit_cost, 11.2)

    def test_fifo_negative_1(self):
        """ Send products that you do not have. Value the first outgoing move to the standard
        price, receive in multiple times the delivered quantity and run _fifo_vacuum to compensate.
        """
        self.product1.categ_id.property_cost_method = 'fifo'

        # We expect the user to set manually set a standard price to its products if its first
        # transfer is sending products that he doesn't have.
        self.product1.product_tmpl_id.standard_price = 8.0

        # ---------------------------------------------------------------------
        # Send 50 units you don't have
        # ---------------------------------------------------------------------
        move1 = self.env['stock.move'].create({
            'name': '50 out',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 50.0,
            'price_unit': 0,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.stock_location.id,
                'location_dest_id': self.customer_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 50.0,
            })]
        })
        move1._action_confirm()
        move1._action_done()

        # stock values for move1
        self.assertEqual(move1.stock_valuation_layer_ids.value, -400.0)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, -50.0)  # normally unused in out moves, but as it moved negative stock we mark it
        self.assertEqual(move1.stock_valuation_layer_ids.unit_cost, 8)

        # account values for move1
        valuation_aml = self._get_stock_valuation_move_lines()
        move1_valuation_aml = valuation_aml[-1]
        self.assertEqual(move1_valuation_aml.debit, 0)
        self.assertEqual(move1_valuation_aml.credit, 400)
        output_aml = self._get_stock_output_move_lines()
        move1_output_aml = output_aml[-1]
        self.assertEqual(move1_output_aml.debit, 400)
        self.assertEqual(move1_output_aml.credit, 0)

        # ---------------------------------------------------------------------
        # Receive 40 units @ 15
        # ---------------------------------------------------------------------
        move2 = self.env['stock.move'].create({
            'name': '40 in @15',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 40.0,
            'price_unit': 15.0,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.supplier_location.id,
                'location_dest_id': self.stock_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 40.0,
            })]
        })
        move2._action_confirm()
        move2._action_done()

        # stock values for move2
        self.assertEqual(move2.stock_valuation_layer_ids.value, 600.0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 0)
        self.assertEqual(move2.stock_valuation_layer_ids.unit_cost, 15.0)

        # ---------------------------------------------------------------------
        # The vacuum ran
        # ---------------------------------------------------------------------
        # account values after vacuum
        valuation_aml = self._get_stock_valuation_move_lines()
        vacuum1_valuation_aml = valuation_aml[-1]
        self.assertEqual(vacuum1_valuation_aml.debit, 0)
        # 280 was credited more in valuation (we compensated 40 items here, so initially 40 were
        # valued at 8 -> 320 in credit but now we actually sent 40@15 = 600, so the difference is
        # 280 more credited)
        self.assertEqual(vacuum1_valuation_aml.credit, 280)
        output_aml = self._get_stock_output_move_lines()
        vacuum1_output_aml = output_aml[-1]
        self.assertEqual(vacuum1_output_aml.debit, 280)
        self.assertEqual(vacuum1_output_aml.credit, 0)

        # ---------------------------------------------------------------------
        # Receive 20 units @ 25
        # ---------------------------------------------------------------------
        move3 = self.env['stock.move'].create({
            'name': '20 in @25',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 20.0,
            'price_unit': 25.0,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.supplier_location.id,
                'location_dest_id': self.stock_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 20.0
            })]
        })
        move3._action_confirm()
        move3._action_done()

        # ---------------------------------------------------------------------
        # The vacuum ran
        # ---------------------------------------------------------------------

        # stock values for move1-3
        self.assertEqual(sum(move1.stock_valuation_layer_ids.mapped('value')), -850.0)  # 40@15 + 10@25
        self.assertEqual(sum(move1.stock_valuation_layer_ids.mapped('remaining_qty')), 0.0)
        self.assertEqual(sum(move2.stock_valuation_layer_ids.mapped('value')), 600.0)
        self.assertEqual(sum(move2.stock_valuation_layer_ids.mapped('remaining_qty')), 0.0)
        self.assertEqual(sum(move3.stock_valuation_layer_ids.mapped('value')), 500.0)
        self.assertEqual(sum(move3.stock_valuation_layer_ids.mapped('remaining_qty')), 10.0)

        # account values after vacuum
        valuation_aml = self._get_stock_valuation_move_lines()
        vacuum2_valuation_aml = valuation_aml[-1]
        self.assertEqual(vacuum2_valuation_aml.debit, 0)
        # there is still 10@8 to compensate with 10@25 -> 170 to credit more in the valuation account
        self.assertEqual(vacuum2_valuation_aml.credit, 170)
        output_aml = self._get_stock_output_move_lines()
        vacuum2_output_aml = output_aml[-1]
        self.assertEqual(vacuum2_output_aml.debit, 170)
        self.assertEqual(vacuum2_output_aml.credit, 0)

        # ---------------------------------------------------------------------
        # Ending
        # ---------------------------------------------------------------------
        self.assertEqual(self.product1.quantity_svl, 10)
        self.assertEqual(self.product1.value_svl, 250)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('debit')), 0)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('credit')), 1100)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('debit')), 1100)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('credit')), 850)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('debit')), 850)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('credit')), 0)

    def test_fifo_negative_2(self):
        """ Receives 10 units, send more, the extra quantity should be valued at the last fifo
        price, running the vacuum should not do anything. Receive 2 units at the price the two
        extra units were sent, check that no accounting entries are created.
        """
        self.product1.categ_id.property_cost_method = 'fifo'

        # ---------------------------------------------------------------------
        # Receive 10@10
        # ---------------------------------------------------------------------
        move1 = self.env['stock.move'].create({
            'name': '10 in',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.supplier_location.id,
                'location_dest_id': self.stock_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 10.0,
            })]
        })
        move1._action_confirm()
        move1._action_done()

        # stock values for move1
        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 10.0)
        self.assertEqual(move1.stock_valuation_layer_ids.unit_cost, 10.0)

        # account values for move1
        valuation_aml = self._get_stock_valuation_move_lines()
        move1_valuation_aml = valuation_aml[-1]
        self.assertEqual(move1_valuation_aml.debit, 100)
        self.assertEqual(move1_valuation_aml.credit, 0)
        input_aml = self._get_stock_input_move_lines()
        move1_input_aml = input_aml[-1]
        self.assertEqual(move1_input_aml.debit, 0)
        self.assertEqual(move1_input_aml.credit, 100)

        self.assertEqual(len(move1.account_move_ids), 1)

        # ---------------------------------------------------------------------
        # Send 12
        # ---------------------------------------------------------------------
        move2 = self.env['stock.move'].create({
            'name': '12 out (2 negative)',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 12.0,
            'price_unit': 0,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.stock_location.id,
                'location_dest_id': self.customer_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 12.0,
            })]
        })
        move2._action_confirm()
        move2._action_done()

        # stock values for move2
        self.assertEqual(move2.stock_valuation_layer_ids.value, -120.0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, -2.0)

        # account values for move2
        valuation_aml = self._get_stock_valuation_move_lines()
        move2_valuation_aml = valuation_aml[-1]
        self.assertEqual(move2_valuation_aml.debit, 0)
        self.assertEqual(move2_valuation_aml.credit, 120)
        output_aml = self._get_stock_output_move_lines()
        move2_output_aml = output_aml[-1]
        self.assertEqual(move2_output_aml.debit, 120)
        self.assertEqual(move2_output_aml.credit, 0)

        self.assertEqual(len(move2.account_move_ids), 1)

        # ---------------------------------------------------------------------
        # Run the vacuum
        # ---------------------------------------------------------------------
        self.product1._run_fifo_vacuum()

        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0.0)
        self.assertEqual(move1.stock_valuation_layer_ids.unit_cost, 10.0)
        self.assertEqual(move2.stock_valuation_layer_ids.value, -120.0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, -2.0)

        self.assertEqual(len(move1.account_move_ids), 1)
        self.assertEqual(len(move2.account_move_ids), 1)

        self.assertEqual(self.product1.quantity_svl, -2)
        self.assertEqual(self.product1.value_svl, -20)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('debit')), 0)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('credit')), 100)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('debit')), 100)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('credit')), 120)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('debit')), 120)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('credit')), 0)

        # Now receive exactly the extra units at exactly the price sent, no
        # accounting entries should be created after the vacuum.
        # ---------------------------------------------------------------------
        # Receive 2@10
        # ---------------------------------------------------------------------
        move3 = self.env['stock.move'].create({
            'name': '10 in',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 2.0,
            'price_unit': 10,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.supplier_location.id,
                'location_dest_id': self.stock_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 2.0,
            })]
        })
        move3._action_confirm()
        move3._action_done()

        # ---------------------------------------------------------------------
        # Ending
        # ---------------------------------------------------------------------
        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0.0)
        self.assertEqual(move1.stock_valuation_layer_ids.unit_cost, 10.0)
        self.assertEqual(sum(move2.stock_valuation_layer_ids.mapped('value')), -120.0)
        self.assertEqual(sum(move2.stock_valuation_layer_ids.mapped('remaining_qty')), 0)
        self.assertEqual(move3.stock_valuation_layer_ids.value, 20)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, 0.0)
        self.assertEqual(move3.stock_valuation_layer_ids.unit_cost, 10.0)

        self.assertEqual(len(move1.account_move_ids), 1)
        self.assertEqual(len(move2.account_move_ids), 1)
        self.assertEqual(len(move3.account_move_ids), 1)  # the created account move is due to the receipt

        # nothing should have changed in the accounting regarding the output
        self.assertEqual(self.product1.quantity_svl, 0)
        self.assertEqual(self.product1.value_svl, 0)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('debit')), 0)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('credit')), 120)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('debit')), 120)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('credit')), 120)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('debit')), 120)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('credit')), 0)

    def test_fifo_negative_3(self):
        """ Receives 10 units, send 10 units, then send more: the extra quantity should be valued
        at the last fifo price, running the vacuum should not do anything.
        """
        self.product1.categ_id.property_cost_method = 'fifo'

        # ---------------------------------------------------------------------
        # Receive 10@10
        # ---------------------------------------------------------------------
        move1 = self.env['stock.move'].create({
            'name': '10 in',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.supplier_location.id,
                'location_dest_id': self.stock_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 10.0,
            })]
        })
        move1._action_confirm()
        move1._action_done()

        # stock values for move1
        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 10.0)
        self.assertEqual(move1.stock_valuation_layer_ids.unit_cost, 10.0)

        # account values for move1
        valuation_aml = self._get_stock_valuation_move_lines()
        move1_valuation_aml = valuation_aml[-1]
        self.assertEqual(move1_valuation_aml.debit, 100)
        self.assertEqual(move1_valuation_aml.credit, 0)
        input_aml = self._get_stock_input_move_lines()
        move1_input_aml = input_aml[-1]
        self.assertEqual(move1_input_aml.debit, 0)
        self.assertEqual(move1_input_aml.credit, 100)

        self.assertEqual(len(move1.account_move_ids), 1)

        # ---------------------------------------------------------------------
        # Send 10
        # ---------------------------------------------------------------------
        move2 = self.env['stock.move'].create({
            'name': '10 out',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.stock_location.id,
                'location_dest_id': self.customer_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 10.0,
            })]
        })
        move2._action_confirm()
        move2._action_done()

        # stock values for move2
        self.assertEqual(move2.stock_valuation_layer_ids.value, -100.0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 0.0)

        # account values for move2
        valuation_aml = self._get_stock_valuation_move_lines()
        move2_valuation_aml = valuation_aml[-1]
        self.assertEqual(move2_valuation_aml.debit, 0)
        self.assertEqual(move2_valuation_aml.credit, 100)
        output_aml = self._get_stock_output_move_lines()
        move2_output_aml = output_aml[-1]
        self.assertEqual(move2_output_aml.debit, 100)
        self.assertEqual(move2_output_aml.credit, 0)

        self.assertEqual(len(move2.account_move_ids), 1)

        # ---------------------------------------------------------------------
        # Send 21
        # ---------------------------------------------------------------------
        # FIXME sle last fifo price not updated on the product?
        move3 = self.env['stock.move'].create({
            'name': '10 in',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 21.0,
            'price_unit': 0,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.stock_location.id,
                'location_dest_id': self.customer_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 21.0,
            })]
        })
        move3._action_confirm()
        move3._action_done()

        # stock values for move3
        self.assertEqual(move3.stock_valuation_layer_ids.value, -210.0)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, -21.0)

        # account values for move3
        valuation_aml = self._get_stock_valuation_move_lines()
        move3_valuation_aml = valuation_aml[-1]
        self.assertEqual(move3_valuation_aml.debit, 0)
        self.assertEqual(move3_valuation_aml.credit, 210)
        output_aml = self._get_stock_output_move_lines()
        move3_output_aml = output_aml[-1]
        self.assertEqual(move3_output_aml.debit, 210)
        self.assertEqual(move3_output_aml.credit, 0)

        self.assertEqual(len(move3.account_move_ids), 1)

        # ---------------------------------------------------------------------
        # Run the vacuum
        # ---------------------------------------------------------------------
        self.product1._run_fifo_vacuum()
        self.assertEqual(len(move3.account_move_ids), 1)

        # the vacuum shouldn't do anything in this case
        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0.0)
        self.assertEqual(move1.stock_valuation_layer_ids.unit_cost, 10.0)
        self.assertEqual(move2.stock_valuation_layer_ids.value, -100.0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 0.0)
        self.assertEqual(move3.stock_valuation_layer_ids.value, -210.0)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, -21.0)

        self.assertEqual(len(move1.account_move_ids), 1)
        self.assertEqual(len(move2.account_move_ids), 1)
        self.assertEqual(len(move3.account_move_ids), 1)

        # ---------------------------------------------------------------------
        # Ending
        # ---------------------------------------------------------------------
        self.assertEqual(self.product1.quantity_svl, -21)
        self.assertEqual(self.product1.value_svl, -210)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('debit')), 0)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('credit')), 100)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('debit')), 100)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('credit')), 310)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('debit')), 310)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('credit')), 0)

    def test_fifo_add_move_in_done_picking_1(self):
        """ The flow is:

        product2 std price = 20
        IN01 10@10 product1
        IN01 10@20 product2
        IN01 correction 10@20 -> 11@20 (product2)
        DO01 11 product2
        DO02 1 product2
        DO02 correction 1 -> 2 (negative stock)
        IN03 2@30 product2
        vacuum
        """
        self.product1.categ_id.property_cost_method = 'fifo'

        # ---------------------------------------------------------------------
        # Receive 10@10
        # ---------------------------------------------------------------------
        receipt = self.env['stock.picking'].create({
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'partner_id': self.partner.id,
            'picking_type_id': self.env.ref('stock.picking_type_in').id,
        })

        move1 = self.env['stock.move'].create({
            'picking_id': receipt.id,
            'name': '10 in',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.supplier_location.id,
                'location_dest_id': self.stock_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 10.0,
            })]
        })
        move1._action_confirm()
        move1._action_done()

        # stock values for move1
        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 10.0)
        self.assertEqual(move1.stock_valuation_layer_ids.unit_cost, 10.0)

        # ---------------------------------------------------------------------
        # Add a stock move, receive 10@20 of another product
        # ---------------------------------------------------------------------
        self.product2.categ_id.property_cost_method = 'fifo'
        self.product2.standard_price = 20
        move2 = self.env['stock.move'].create({
            'picking_id': receipt.id,
            'name': '10 in',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product2.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'move_line_ids': [(0, 0, {
                'product_id': self.product2.id,
                'location_id': self.supplier_location.id,
                'location_dest_id': self.stock_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 10.0,
            })]
        })
        move2._action_done()

        self.assertEqual(move2.stock_valuation_layer_ids.value, 200.0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 10.0)
        self.assertEqual(move2.stock_valuation_layer_ids.unit_cost, 20.0)

        self.assertEqual(self.product1.quantity_svl, 10)
        self.assertEqual(self.product1.value_svl, 100)
        self.assertEqual(self.product2.quantity_svl, 10)
        self.assertEqual(self.product2.value_svl, 200)

        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('debit')), 300)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('credit')), 0)

        # ---------------------------------------------------------------------
        # Edit the previous stock move, receive 11
        # ---------------------------------------------------------------------
        move2.quantity_done = 11

        self.assertEqual(sum(move2.stock_valuation_layer_ids.mapped('value')), 220.0)  # after correction, the move should be valued at 11@20
        self.assertEqual(sum(move2.stock_valuation_layer_ids.mapped('remaining_qty')), 11.0)
        self.assertEqual(move2.stock_valuation_layer_ids.sorted()[-1].unit_cost, 20.0)

        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('debit')), 320)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('credit')), 0)

        # ---------------------------------------------------------------------
        # Send 11 product 2
        # ---------------------------------------------------------------------
        delivery = self.env['stock.picking'].create({
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'partner_id': self.partner.id,
            'picking_type_id': self.env.ref('stock.picking_type_out').id,
        })
        move3 = self.env['stock.move'].create({
            'picking_id': delivery.id,
            'name': '11 out',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product2.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 11.0,
            'move_line_ids': [(0, 0, {
                'product_id': self.product2.id,
                'location_id': self.stock_location.id,
                'location_dest_id': self.customer_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 11.0,
            })]
        })

        move3._action_confirm()
        move3._action_done()

        self.assertEqual(move3.stock_valuation_layer_ids.value, -220.0)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, 0.0)
        self.assertEqual(move3.stock_valuation_layer_ids.unit_cost, 20.0)
        self.assertEqual(self.product2.qty_available, 0)
        self.assertEqual(self.product2.quantity_svl, 0)

        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('debit')), 320)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('credit')), 220)

        # ---------------------------------------------------------------------
        # Add one move of product 2, this'll make some negative stock.
        # ---------------------------------------------------------------------

        # FIXME: uncomment when negative stock is handled
        #move4 = self.env['stock.move'].create({
        #    'picking_id': delivery.id,
        #    'name': '1 out',
        #    'location_id': self.stock_location.id,
        #    'location_dest_id': self.customer_location.id,
        #    'product_id': self.product2.id,
        #    'product_uom': self.uom_unit.id,
        #    'product_uom_qty': 1.0,
        #    'state': 'done',  # simulate default_get override
        #    'move_line_ids': [(0, 0, {
        #        'product_id': self.product2.id,
        #        'location_id': self.stock_location.id,
        #        'location_dest_id': self.customer_location.id,
        #        'product_uom_id': self.uom_unit.id,
        #        'qty_done': 1.0,
        #    })]
        #})
        #self.assertEqual(move4.value, -20.0)
        #self.assertEqual(move4.remaining_qty, -1.0)
        #self.assertEqual(move4.price_unit, -20.0)

        #self.assertEqual(self.product2.qty_available, -1)

        #self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('debit')), 320)
        #self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('credit')), 240)

        ## ---------------------------------------------------------------------
        ## edit the created move, add 1
        ## ---------------------------------------------------------------------
        #move4.quantity_done = 2

        #self.assertEqual(self.product2.qty_available, -2)
        #self.assertEqual(move4.value, -40.0)
        #self.assertEqual(move4.remaining_qty, -2.0)
        #self.assertEqual(move4.price_unit, -20.0)

        #self.assertEqual(sum(self._get_stock_input_move_lines().mapped('debit')), 0)
        #self.assertEqual(sum(self._get_stock_input_move_lines().mapped('credit')), 320) # 10*10 + 11*20
        #self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('debit')), 320)
        #self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('credit')), 260)
        #self.assertEqual(sum(self._get_stock_output_move_lines().mapped('debit')), 260)
        #self.assertEqual(sum(self._get_stock_output_move_lines().mapped('credit')), 0)

        #self.env['stock.move']._run_fifo_vacuum()

        #self.assertEqual(sum(self._get_stock_input_move_lines().mapped('debit')), 0)
        #self.assertEqual(sum(self._get_stock_input_move_lines().mapped('credit')), 320) # 10*10 + 11*20
        #self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('debit')), 320)
        #self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('credit')), 260)
        #self.assertEqual(sum(self._get_stock_output_move_lines().mapped('debit')), 260)
        #self.assertEqual(sum(self._get_stock_output_move_lines().mapped('credit')), 0)

        ## ---------------------------------------------------------------------
        ## receive 2 products 2 @ 30
        ## ---------------------------------------------------------------------
        #move5 = self.env['stock.move'].create({
        #    'picking_id': receipt.id,
        #    'name': '10 in',
        #    'location_id': self.supplier_location.id,
        #    'location_dest_id': self.stock_location.id,
        #    'product_id': self.product2.id,
        #    'product_uom': self.uom_unit.id,
        #    'product_uom_qty': 2.0,
        #    'price_unit': 30,
        #    'move_line_ids': [(0, 0, {
        #        'product_id': self.product2.id,
        #        'location_id': self.supplier_location.id,
        #        'location_dest_id': self.stock_location.id,
        #        'product_uom_id': self.uom_unit.id,
        #        'qty_done': 2.0,
        #    })]
        #})
        #move5._action_confirm()
        #move5._action_done()

        #self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('debit')), 380)
        #self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('credit')), 260)

        ## ---------------------------------------------------------------------
        ## run vacuum
        ## ---------------------------------------------------------------------
        #self.env['stock.move']._run_fifo_vacuum()

        #self.assertEqual(sum(self._get_stock_input_move_lines().mapped('debit')), 0)
        #self.assertEqual(sum(self._get_stock_input_move_lines().mapped('credit')), 380) # 10*10 + 11*20
        #self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('debit')), 380)
        #self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('credit')), 280) # 260/
        #self.assertEqual(sum(self._get_stock_output_move_lines().mapped('debit')), 280)
        #self.assertEqual(sum(self._get_stock_output_move_lines().mapped('credit')), 0)

        #self.assertEqual(self.product2.qty_available, 0)
        #self.assertEqual(self.product2.stock_value, 0)
        #self.assertEqual(move4.remaining_value, 0)
        #self.assertEqual(move4.value, -60)  # after correction, the move is valued -(2*30)

    def test_fifo_add_moveline_in_done_move_1(self):
        self.product1.categ_id.property_cost_method = 'fifo'

        # ---------------------------------------------------------------------
        # Receive 10@10
        # ---------------------------------------------------------------------
        move1 = self.env['stock.move'].create({
            'name': '10 in',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.supplier_location.id,
                'location_dest_id': self.stock_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 10.0,
            })]
        })
        move1._action_confirm()
        move1._action_done()

        # stock values for move1
        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 10.0)
        self.assertEqual(move1.stock_valuation_layer_ids.unit_cost, 10.0)

        self.assertEqual(len(move1.account_move_ids), 1)

        # ---------------------------------------------------------------------
        # Add a new move line to receive 10 more
        # ---------------------------------------------------------------------
        self.assertEqual(len(move1.move_line_ids), 1)
        self.env['stock.move.line'].create({
            'move_id': move1.id,
            'product_id': move1.product_id.id,
            'qty_done': 10,
            'product_uom_id': move1.product_uom.id,
            'location_id': move1.location_id.id,
            'location_dest_id': move1.location_dest_id.id,
        })
        self.assertEqual(sum(move1.stock_valuation_layer_ids.mapped('value')), 200.0)
        self.assertEqual(sum(move1.stock_valuation_layer_ids.mapped('remaining_qty')), 20.0)
        self.assertEqual(move1.stock_valuation_layer_ids.sorted()[-1].unit_cost, 10.0)

        self.assertEqual(len(move1.account_move_ids), 2)

        self.assertEqual(self.product1.quantity_svl, 20)
        self.assertEqual(self.product1.value_svl, 200)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('debit')), 0)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('credit')), 200)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('debit')), 200)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('credit')), 0)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('debit')), 0)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('credit')), 0)

    def test_fifo_edit_done_move1(self):
        """ Increase OUT done move while quantities are available.
        """
        self.product1.categ_id.property_cost_method = 'fifo'

        # ---------------------------------------------------------------------
        # Receive 10@10
        # ---------------------------------------------------------------------
        move1 = self.env['stock.move'].create({
            'name': 'receive 10@10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.supplier_location.id,
                'location_dest_id': self.stock_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 10.0,
            })]
        })
        move1._action_confirm()
        move1._action_done()

        # stock values for move1
        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 10.0)
        self.assertEqual(move1.stock_valuation_layer_ids.unit_cost, 10.0)

        # account values for move1
        valuation_aml = self._get_stock_valuation_move_lines()
        move1_valuation_aml = valuation_aml[-1]
        self.assertEqual(move1_valuation_aml.debit, 100)
        self.assertEqual(move1_valuation_aml.credit, 0)
        input_aml = self._get_stock_input_move_lines()
        move1_input_aml = input_aml[-1]
        self.assertEqual(move1_input_aml.debit, 0)
        self.assertEqual(move1_input_aml.credit, 100)

        self.assertEqual(len(move1.account_move_ids), 1)

        self.assertAlmostEqual(self.product1.quantity_svl, 10.0)
        self.assertEqual(self.product1.value_svl, 100)

        # ---------------------------------------------------------------------
        # Receive 10@12
        # ---------------------------------------------------------------------
        move2 = self.env['stock.move'].create({
            'name': 'receive 10@12',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 12,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.supplier_location.id,
                'location_dest_id': self.stock_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 10.0,
            })]
        })
        move2._action_confirm()
        move2._action_done()

        # stock values for move2
        self.assertEqual(move2.stock_valuation_layer_ids.value, 120.0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 10.0)
        self.assertEqual(move2.stock_valuation_layer_ids.unit_cost, 12.0)

        # account values for move2
        valuation_aml = self._get_stock_valuation_move_lines()
        move2_valuation_aml = valuation_aml[-1]
        self.assertEqual(move2_valuation_aml.debit, 120)
        self.assertEqual(move2_valuation_aml.credit, 0)
        input_aml = self._get_stock_input_move_lines()
        move2_input_aml = input_aml[-1]
        self.assertEqual(move2_input_aml.debit, 0)
        self.assertEqual(move2_input_aml.credit, 120)

        self.assertEqual(len(move2.account_move_ids), 1)

        self.assertAlmostEqual(self.product1.qty_available, 20.0)
        self.assertAlmostEqual(self.product1.quantity_svl, 20.0)
        self.assertEqual(self.product1.value_svl, 220)

        # ---------------------------------------------------------------------
        # Send 8
        # ---------------------------------------------------------------------
        move3 = self.env['stock.move'].create({
            'name': '12 out (2 negative)',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 8.0,
            'price_unit': 0,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.stock_location.id,
                'location_dest_id': self.customer_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 8.0,
            })]
        })
        move3._action_confirm()
        move3._action_done()

        # stock values for move3
        self.assertEqual(move3.stock_valuation_layer_ids.value, -80.0)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, 0.0)

        # account values for move3
        valuation_aml = self._get_stock_valuation_move_lines()
        move3_valuation_aml = valuation_aml[-1]
        self.assertEqual(move3_valuation_aml.debit, 0)  # FIXME sle shiiiiiiieeeeet with_context out move doesn't work?
        output_aml = self._get_stock_output_move_lines()
        move3_output_aml = output_aml[-1]
        self.assertEqual(move3_output_aml.debit, 80)
        self.assertEqual(move3_output_aml.credit, 0)

        self.assertEqual(len(move3.account_move_ids), 1)

        self.assertAlmostEqual(self.product1.qty_available, 12.0)
        self.assertAlmostEqual(self.product1.quantity_svl, 12.0)
        self.assertEqual(self.product1.value_svl, 140)

        # ---------------------------------------------------------------------
        # Edit last move, send 14 instead
        # it should send 2@10 and 4@12
        # ---------------------------------------------------------------------
        move3.quantity_done = 14
        self.assertEqual(move3.product_qty, 14)
        # old value: -80 -(8@10)
        # new value: -148 => -(10@10 + 4@12)
        self.assertEqual(sum(move3.stock_valuation_layer_ids.mapped('value')), -148)

        # account values for move3
        valuation_aml = self._get_stock_valuation_move_lines()
        move3_valuation_aml = valuation_aml[-1]
        self.assertEqual(move3_valuation_aml.debit, 0)
        output_aml = self._get_stock_output_move_lines()
        move3_output_aml = output_aml[-1]
        self.assertEqual(move3_output_aml.debit, 68)
        self.assertEqual(move3_output_aml.credit, 0)

        self.assertEqual(len(move3.account_move_ids), 2)

        self.assertEqual(self.product1.value_svl, 72)

        # ---------------------------------------------------------------------
        # Ending
        # ---------------------------------------------------------------------
        self.assertEqual(self.product1.qty_available, 6)
        self.assertAlmostEqual(self.product1.quantity_svl, 6.0)
        self.assertEqual(self.product1.value_svl, 72)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('debit')), 0)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('credit')), 220)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('debit')), 220)
        self.assertEqual(sum(self._get_stock_valuation_move_lines().mapped('credit')), 148)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('debit')), 148)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('credit')), 0)

    def test_fifo_edit_done_move2(self):
        """ Decrease, then increase OUT done move while quantities are available.
        """
        self.product1.categ_id.property_cost_method = 'fifo'

        # ---------------------------------------------------------------------
        # Receive 10@10
        # ---------------------------------------------------------------------
        move1 = self.env['stock.move'].create({
            'name': 'receive 10@10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.supplier_location.id,
                'location_dest_id': self.stock_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 10.0,
            })]
        })
        move1._action_confirm()
        move1._action_done()

        # stock values for move1
        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 10.0)
        self.assertEqual(move1.stock_valuation_layer_ids.unit_cost, 10.0)

        # ---------------------------------------------------------------------
        # Send 10
        # ---------------------------------------------------------------------
        move2 = self.env['stock.move'].create({
            'name': '12 out (2 negative)',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 0,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.stock_location.id,
                'location_dest_id': self.customer_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 10.0,
            })]
        })
        move2._action_confirm()
        move2._action_done()

        # stock values for move2
        self.assertEqual(move2.stock_valuation_layer_ids.value, -100.0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 0.0)

        # ---------------------------------------------------------------------
        # Actually, send 8 in the last move
        # ---------------------------------------------------------------------
        move2.quantity_done = 8

        self.assertEqual(sum(move2.stock_valuation_layer_ids.mapped('value')), -80.0)  # the move actually sent 8@10

        self.assertEqual(sum(self.product1.stock_valuation_layer_ids.mapped('remaining_qty')), 2)

        self.product1.qty_available = 2
        self.product1.value_svl = 20
        self.product1.quantity_svl = 2

        # ---------------------------------------------------------------------
        # Actually, send 10 in the last move
        # ---------------------------------------------------------------------
        move2.quantity_done = 10

        self.assertEqual(sum(move2.stock_valuation_layer_ids.mapped('value')), -100.0)  # the move actually sent 10@10
        self.assertEqual(sum(self.product1.stock_valuation_layer_ids.mapped('remaining_qty')), 0)

        self.assertEqual(self.product1.quantity_svl, 0)
        self.assertEqual(self.product1.value_svl, 0)

    def test_fifo_standard_price_upate_1(self):
        product = self.env['product.product'].create({
            'name': 'product1',
            'type': 'product',
            'categ_id': self.env.ref('product.product_category_all').id,
        })
        product.product_tmpl_id.categ_id.property_cost_method = 'fifo'
        self._make_in_move(product, 3, unit_cost=17)
        self._make_in_move(product, 1, unit_cost=23)
        self._make_out_move(product, 3)
        self.assertEqual(product.standard_price, 23)

    def test_fifo_standard_price_upate_2(self):
        product = self.env['product.product'].create({
            'name': 'product1',
            'type': 'product',
            'categ_id': self.env.ref('product.product_category_all').id,
        })
        product.product_tmpl_id.categ_id.property_cost_method = 'fifo'
        self._make_in_move(product, 5, unit_cost=17)
        self._make_in_move(product, 1, unit_cost=23)
        self._make_out_move(product, 4)
        self.assertEqual(product.standard_price, 17)

    def test_fifo_standard_price_upate_3(self):
        """Standard price must be set on move in if no product and if first move."""
        product = self.env['product.product'].create({
            'name': 'product1',
            'type': 'product',
            'categ_id': self.env.ref('product.product_category_all').id,
        })
        product.product_tmpl_id.categ_id.property_cost_method = 'fifo'
        self._make_in_move(product, 5, unit_cost=17)
        self._make_in_move(product, 1, unit_cost=23)
        self.assertEqual(product.standard_price, 17)
        self._make_out_move(product, 4)
        self.assertEqual(product.standard_price, 17)
        self._make_out_move(product, 1)
        self.assertEqual(product.standard_price, 23)
        self._make_out_move(product, 1)
        self.assertEqual(product.standard_price, 23)
        self._make_in_move(product, 1, unit_cost=77)
        self.assertEqual(product.standard_price, 77)

    def test_average_perpetual_1(self):
        # http://accountingexplained.com/financial/inventories/avco-method
        self.product1.categ_id.property_cost_method = 'average'

        # Beginning Inventory: 60 units @ 15.00 per unit
        move1 = self.env['stock.move'].create({
            'name': '60 units @ 15.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 60.0,
            'price_unit': 15,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 60.0
        move1._action_done()

        self.assertEqual(move1.stock_valuation_layer_ids.value, 900.0)

        # Purchase 140 units @ 15.50 per unit
        move2 = self.env['stock.move'].create({
            'name': '140 units @ 15.50 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 140.0,
            'price_unit': 15.50,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 140.0
        move2._action_done()

        self.assertEqual(move2.stock_valuation_layer_ids.value, 2170.0)

        # Sale 190 units @ 15.35 per unit
        move3 = self.env['stock.move'].create({
            'name': 'Sale 190 units @ 19.00 per unit',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 190.0,
        })
        move3._action_confirm()
        move3._action_assign()
        move3.move_line_ids.qty_done = 190.0
        move3._action_done()

        self.assertEqual(move3.stock_valuation_layer_ids.value, -2916.5)

        # Purchase 70 units @ $16.00 per unit
        move4 = self.env['stock.move'].create({
            'name': '70 units @ $16.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 70.0,
            'price_unit': 16.00,
        })
        move4._action_confirm()
        move4._action_assign()
        move4.move_line_ids.qty_done = 70.0
        move4._action_done()

        self.assertEqual(move4.stock_valuation_layer_ids.value, 1120.0)

        # Sale 30 units @ $19.50 per unit
        move5 = self.env['stock.move'].create({
            'name': '30 units @ $19.50 per unit',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 30.0,
        })
        move5._action_confirm()
        move5._action_assign()
        move5.move_line_ids.qty_done = 30.0
        move5._action_done()

        self.assertEqual(move5.stock_valuation_layer_ids.value, -477.56)

        # Receives 10 units but assign them to an owner, the valuation should not be impacted.
        move6 = self.env['stock.move'].create({
            'name': '10 units to an owner',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 99,
        })
        move6._action_confirm()
        move6._action_assign()
        move6.move_line_ids.owner_id = self.owner1.id
        move6.move_line_ids.qty_done = 10.0
        move6._action_done()

        self.assertEqual(move6.stock_valuation_layer_ids.value, 0)

        # Sale 50 units @ $19.50 per unit (no stock anymore)
        move7 = self.env['stock.move'].create({
            'name': '50 units @ $19.50 per unit',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 50.0,
        })
        move7._action_confirm()
        move7._action_assign()
        move7.move_line_ids.qty_done = 50.0
        move7._action_done()

        self.assertEqual(move7.stock_valuation_layer_ids.value, -795.94)
        self.assertAlmostEqual(self.product1.quantity_svl, 0.0)
        self.assertAlmostEqual(self.product1.value_svl, 0.0)

    def test_average_perpetual_2(self):
        self.product1.categ_id.property_cost_method = 'average'

        move1 = self.env['stock.move'].create({
            'name': 'Receive 10 units at 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10.0
        move1._action_done()
        self.assertEqual(self.product1.standard_price, 10)

        move2 = self.env['stock.move'].create({
            'name': 'Receive 10 units at 15',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 15,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 10.0
        move2._action_done()
        self.assertEqual(self.product1.standard_price, 12.5)

        move3 = self.env['stock.move'].create({
            'name': 'Deliver 15 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 15.0,
        })
        move3._action_confirm()
        move3._action_assign()
        move3.move_line_ids.qty_done = 15.0
        move3._action_done()
        self.assertEqual(self.product1.standard_price, 12.5)

        move4 = self.env['stock.move'].create({
            'name': 'Deliver 10 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
        })
        move4._action_confirm()
        move4._action_assign()
        move4.move_line_ids.qty_done = 10.0
        move4._action_done()
        # note: 5 units were sent estimated at 12.5 (negative stock)
        self.assertEqual(self.product1.standard_price, 12.5)
        self.assertEqual(self.product1.quantity_svl, -5)
        self.assertEqual(self.product1.value_svl, -62.5)

        move2.move_line_ids.qty_done = 20
        # incrementing the receipt triggered the vacuum, the negative stock is corrected
        self.assertEqual(self.product1.stock_valuation_layer_ids[-1].value, -12.5)

        self.assertEqual(self.product1.quantity_svl, 5)
        self.assertEqual(self.product1.value_svl, 75)
        self.assertEqual(self.product1.standard_price, 15)

    def test_average_perpetual_3(self):
        self.product1.categ_id.property_cost_method = 'average'

        move1 = self.env['stock.move'].create({
            'name': 'Receive  10 units at 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10.0
        move1._action_done()

        move2 = self.env['stock.move'].create({
            'name': 'Receive 10 units at 15',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 15,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 10.0
        move2._action_done()

        move3 = self.env['stock.move'].create({
            'name': 'Deliver 15 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 15.0,
        })
        move3._action_confirm()
        move3._action_assign()
        move3.move_line_ids.qty_done = 15.0
        move3._action_done()

        move4 = self.env['stock.move'].create({
            'name': 'Deliver 10 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
        })
        move4._action_confirm()
        move4._action_assign()
        move4.move_line_ids.qty_done = 10.0
        move4._action_done()
        move2.move_line_ids.qty_done = 0
        self.assertEqual(self.product1.value_svl, -187.5)

    def test_average_perpetual_4(self):
        """receive 1@10, receive 1@5 insteadof 3@5"""
        self.product1.categ_id.property_cost_method = 'average'

        move1 = self.env['stock.move'].create({
            'name': 'Receive 1 unit at 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 1.0,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 1.0
        move1._action_done()

        move2 = self.env['stock.move'].create({
            'name': 'Receive 3 units at 5',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 3.0,
            'price_unit': 5,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 1.0
        move2._action_done()

        self.assertAlmostEqual(self.product1.quantity_svl, 2.0)
        self.assertAlmostEqual(self.product1.standard_price, 7.5)

    def test_average_perpetual_5(self):
        ''' Set owner on incoming move => no valuation '''
        self.product1.categ_id.property_cost_method = 'average'

        move1 = self.env['stock.move'].create({
            'name': 'Receive 1 unit at 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 1.0,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 1.0
        move1.move_line_ids.owner_id = self.owner1.id
        move1._action_done()

        self.assertAlmostEqual(self.product1.quantity_svl, 0.0)
        self.assertAlmostEqual(self.product1.value_svl, 0.0)

    def test_average_perpetual_6(self):
        """ Batch validation of moves """
        self.product1.product_tmpl_id.categ_id.property_cost_method = 'average'

        move1 = self.env['stock.move'].create({
            'name': 'Receive 1 unit at 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 1.0,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 1.0

        move2 = self.env['stock.move'].create({
            'name': 'Receive 1 units at 5',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 1.0,
            'price_unit': 5,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 1.0

        # Receive both at the same time
        (move1 | move2)._action_done()

        self.assertAlmostEqual(self.product1.standard_price, 7.5)
        self.assertEqual(self.product1.quantity_svl, 2)
        self.assertEqual(self.product1.value_svl, 15)

    def test_average_perpetual_7(self):
        """ Test edit in the past. Receive 5@10, receive 10@20, edit the first move to receive
        15 instead.
        """
        self.product1.categ_id.property_cost_method = 'average'

        move1 = self.env['stock.move'].create({
            'name': 'IN 5@10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 5,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1.quantity_done = 5
        move1._action_done()

        self.assertAlmostEqual(self.product1.standard_price, 10)
        self.assertAlmostEqual(move1.stock_valuation_layer_ids.value, 50)
        self.assertAlmostEqual(self.product1.quantity_svl, 5)
        self.assertAlmostEqual(self.product1.value_svl, 50)

        move2 = self.env['stock.move'].create({
            'name': 'IN 10@20',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10,
            'price_unit': 20,
        })
        move2._action_confirm()
        move2.quantity_done = 10
        move2._action_done()

        self.assertAlmostEqual(self.product1.standard_price, 16.67)
        self.assertAlmostEqual(move2.stock_valuation_layer_ids.value, 200)
        self.assertAlmostEqual(self.product1.quantity_svl, 15)
        self.assertAlmostEqual(self.product1.value_svl, 250)

        move1.move_line_ids.qty_done = 15

        self.assertAlmostEqual(self.product1.standard_price, 14.0)
        self.assertAlmostEqual(len(move1.stock_valuation_layer_ids), 2)
        self.assertAlmostEqual(move1.stock_valuation_layer_ids.sorted()[-1].value, 100)
        self.assertAlmostEqual(self.product1.quantity_svl, 25)
        self.assertAlmostEqual(self.product1.value_svl, 350)

    def test_average_perpetual_8(self):
        """ Receive 1@10, then dropship 1@20, finally return the dropship. Dropship should not
            impact the price.
        """
        self.product1.categ_id.property_cost_method = 'average'

        move1 = self.env['stock.move'].create({
            'name': 'IN 1@10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 1,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1.quantity_done = 1
        move1._action_done()

        self.assertAlmostEqual(self.product1.standard_price, 10)

        move2 = self.env['stock.move'].create({
            'name': 'IN 1@20',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 1,
            'price_unit': 20,
        })
        move2._action_confirm()
        move2.quantity_done = 1
        move2._action_done()

        self.assertAlmostEqual(self.product1.standard_price, 10.0)

        move3 = self.env['stock.move'].create({
            'name': 'IN 1@20',
            'location_id': self.customer_location.id,
            'location_dest_id': self.supplier_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 1,
            'price_unit': 20,
        })
        move3._action_confirm()
        move3.quantity_done = 1
        move3._action_done()

        self.assertAlmostEqual(self.product1.standard_price, 10.0)

    def test_average_perpetual_9(self):
        """ When a product has an available quantity of -5, edit an incoming shipment and increase
        the received quantity by 5 units.
        """
        self.product1.categ_id.property_cost_method = 'average'
        # receive 10
        move1 = self.env['stock.move'].create({
            'name': 'IN 5@10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1.quantity_done = 10
        move1._action_done()

        # deliver 15
        move2 = self.env['stock.move'].create({
            'name': 'Deliver 10 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 15.0,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 15.0
        move2._action_done()

        # increase the receipt to 15
        move1.move_line_ids.qty_done = 15

    def test_average_stock_user(self):
        """ deliver an average product as a stock user. """
        self.product1.categ_id.property_cost_method = 'average'
        # receive 10
        move1 = self.env['stock.move'].create({
            'name': 'IN 5@10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1.quantity_done = 10
        move1._action_done()

        # sell 15
        move2 = self.env['stock.move'].create({
            'name': 'Deliver 10 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 15.0,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 15.0
        move2.with_user(self.inventory_user)._action_done()

    def test_average_negative_1(self):
        """ Test edit in the past. Receive 10, send 20, edit the second move to only send 10.
        """
        self.product1.categ_id.property_cost_method = 'average'

        move1 = self.env['stock.move'].create({
            'name': 'Receive 10 units at 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10.0
        move1._action_done()

        move2 = self.env['stock.move'].create({
            'name': 'send 20 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 20.0,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 20.0
        move2._action_done()

        valuation_aml = self._get_stock_valuation_move_lines()
        move2_valuation_aml = valuation_aml[-1]
        self.assertEqual(len(valuation_aml), 2)
        self.assertEqual(move2_valuation_aml.debit, 0)
        self.assertEqual(move2_valuation_aml.credit, 200)

        move2.quantity_done = 10.0

        valuation_aml = self._get_stock_valuation_move_lines()
        move2_valuation_aml = valuation_aml[-1]
        self.assertEqual(len(valuation_aml), 3)
        self.assertEqual(move2_valuation_aml.debit, 100)
        self.assertEqual(move2_valuation_aml.credit, 0)

        move2.quantity_done = 11.0

        valuation_aml = self._get_stock_valuation_move_lines()
        move2_valuation_aml = valuation_aml[-1]
        self.assertEqual(len(valuation_aml), 4)
        self.assertEqual(move2_valuation_aml.debit, 0)
        self.assertEqual(move2_valuation_aml.credit, 10)

    def test_average_negative_2(self):
        """ Send goods that you don't have in stock and never received any unit.
        """
        self.product1.categ_id.property_cost_method = 'average'

        # set a standard price
        self.product1.standard_price = 99

        # send 10 units that we do not have
        self.assertEqual(self.env['stock.quant']._get_available_quantity(self.product1, self.stock_location), 0)
        move1 = self.env['stock.move'].create({
            'name': 'test_average_negative_1',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
        })
        move1._action_confirm()
        move1.quantity_done = 10.0
        move1._action_done()
        self.assertEqual(move1.stock_valuation_layer_ids.value, -990.0)  # as no move out were done for this product, fallback on the standard price

    def test_average_negative_3(self):
        """ Send goods that you don't have in stock but received and send some units before.
        """
        self.product1.categ_id.property_cost_method= 'average'

        # set a standard price
        self.product1.standard_price = 99

        # Receives 10 produts at 10
        move1 = self.env['stock.move'].create({
            'name': '68 units @ 15.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10.0
        move1._action_done()

        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)

        # send 10 products
        move2 = self.env['stock.move'].create({
            'name': 'Sale 94 units @ 19.00 per unit',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 10.0
        move2._action_done()

        self.assertEqual(move2.stock_valuation_layer_ids.value, -100.0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 0.0)  # unused in average move

        # send 10 products again
        move3 = self.env['stock.move'].create({
            'name': 'Sale 94 units @ 19.00 per unit',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
        })
        move3._action_confirm()
        move3.quantity_done = 10.0
        move3._action_done()

        self.assertEqual(move3.stock_valuation_layer_ids.value, -100.0)  # as no move out were done for this product, fallback on latest cost

    def test_average_negative_4(self):
        self.product1.categ_id.property_cost_method = 'average'

        # set a standard price
        self.product1.standard_price = 99

        # Receives 10 produts at 10
        move1 = self.env['stock.move'].create({
            'name': '68 units @ 15.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10.0
        move1._action_done()

        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)

    def test_average_negative_5(self):
        self.product1.categ_id.property_cost_method = 'average'

        # in 10 @ 10
        move1 = self.env['stock.move'].create({
            'name': '10 units @ 10.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10.0
        move1._action_done()

        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)
        self.assertEqual(self.product1.standard_price, 10)

        # in 10 @ 20
        move2 = self.env['stock.move'].create({
            'name': '10 units @ 20.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 20,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 10.0
        move2._action_done()

        self.assertEqual(move2.stock_valuation_layer_ids.value, 200.0)
        self.assertEqual(self.product1.standard_price, 15)

        # send 5
        move3 = self.env['stock.move'].create({
            'name': 'Sale 5 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 5.0,
        })
        move3._action_confirm()
        move3.quantity_done = 5.0
        move3._action_done()

        self.assertEqual(move3.stock_valuation_layer_ids.value, -75.0)
        self.assertEqual(self.product1.standard_price, 15)

        # send 30
        move4 = self.env['stock.move'].create({
            'name': 'Sale 5 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 30.0,
        })
        move4._action_confirm()
        move4.quantity_done = 30.0
        move4._action_done()

        self.assertEqual(move4.stock_valuation_layer_ids.value, -450.0)
        self.assertEqual(self.product1.standard_price, 15)

        # in 20 @ 20
        move5 = self.env['stock.move'].create({
            'name': '20 units @ 20.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 20.0,
            'price_unit': 20,
        })
        move5._action_confirm()
        move5._action_assign()
        move5.move_line_ids.qty_done = 20.0
        move5._action_done()
        self.assertEqual(move5.stock_valuation_layer_ids.value, 400.0)

        # Move 4 is now fixed, it initially sent 30@15 but the 5 last units were negative and estimated
        # at 15 (1125). The new receipt made these 5 units sent at 20 (1500), so a 450 value is added
        # to move4.
        self.assertEqual(move4.stock_valuation_layer_ids[0].value, -450)

        # So we have 5@20 in stock.
        self.assertEqual(self.product1.quantity_svl, 5)
        self.assertEqual(self.product1.value_svl, 100)
        self.assertEqual(self.product1.standard_price, 20)

        # send 5 products to empty the inventory, the average price should not go to 0
        move6 = self.env['stock.move'].create({
            'name': 'Sale 5 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 5.0,
        })
        move6._action_confirm()
        move6.quantity_done = 5.0
        move6._action_done()

        self.assertEqual(move6.stock_valuation_layer_ids.value, -100.0)
        self.assertEqual(self.product1.standard_price, 20)

        # in 10 @ 10, the new average price should be 10
        move7 = self.env['stock.move'].create({
            'name': '10 units @ 10.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10,
        })
        move7._action_confirm()
        move7._action_assign()
        move7.move_line_ids.qty_done = 10.0
        move7._action_done()

        self.assertEqual(move7.stock_valuation_layer_ids.value, 100.0)
        self.assertEqual(self.product1.standard_price, 10)

    def test_average_negative_6(self):
        """ Receive 10 units, send 8, and change the product's standard price
        manually. Since there is no negative stock to fix when running the
        vacuum, the standard price should not be recomputed. Send another 4
        units and change the standard price again. In this case, since there is
        negative stock to fix, the standard price should be recomputed.
        """
        self.product1.categ_id.property_cost_method = 'average'

        # ---------------------------------------------------------------------
        # Receive 10@10
        # ---------------------------------------------------------------------
        move1 = self.env['stock.move'].create({
            'name': '10 in',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.supplier_location.id,
                'location_dest_id': self.stock_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 10.0,
            })]
        })
        move1._action_confirm()
        move1._action_done()

        # stock values for move1
        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 10.0)
        self.assertEqual(move1.stock_valuation_layer_ids.unit_cost, 10.0)

        # account values for move1
        valuation_aml = self._get_stock_valuation_move_lines()
        move1_valuation_aml = valuation_aml[-1]
        self.assertEqual(move1_valuation_aml.debit, 100)
        self.assertEqual(move1_valuation_aml.credit, 0)
        input_aml = self._get_stock_input_move_lines()
        move1_input_aml = input_aml[-1]
        self.assertEqual(move1_input_aml.debit, 0)
        self.assertEqual(move1_input_aml.credit, 100)

        self.assertEqual(len(move1.account_move_ids), 1)

        # ---------------------------------------------------------------------
        # Send 8
        # ---------------------------------------------------------------------
        move2 = self.env['stock.move'].create({
            'name': '8 out',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 8.0,
            'price_unit': 0,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.stock_location.id,
                'location_dest_id': self.customer_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 8.0,
            })]
        })
        move2._action_confirm()
        move2._action_done()

        # stock values for move1 and move2
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 2.0)
        self.assertEqual(move2.stock_valuation_layer_ids.value, -80.0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 0.0)

        # account values for move2
        valuation_aml = self._get_stock_valuation_move_lines()
        move2_valuation_aml = valuation_aml[-1]
        self.assertEqual(move2_valuation_aml.debit, 0)
        self.assertEqual(move2_valuation_aml.credit, 80)
        output_aml = self._get_stock_output_move_lines()
        move2_output_aml = output_aml[-1]
        self.assertEqual(move2_output_aml.debit, 80)
        self.assertEqual(move2_output_aml.credit, 0)

        self.assertEqual(len(move2.account_move_ids), 1)

        # ---------------------------------------------------------------------
        # Run the vacuum
        # ---------------------------------------------------------------------

        # Change the product's standard price manually to make sure it is not
        # recomputed
        self.assertEqual(self.product1.product_tmpl_id.standard_price, 10)
        self.product1.product_tmpl_id.standard_price = 15
        self.assertEqual(self.product1.product_tmpl_id.standard_price, 15)

        # Run the vacuum. Since no negative stock was fixed, the standard price
        # should not have changed. Fix the price again afterward and rerun the
        # vacuum
        self.product1._run_fifo_vacuum()
        self.assertEqual(self.product1.product_tmpl_id.standard_price, 15)
        self.product1.product_tmpl_id.standard_price = 10
        self.assertEqual(self.product1.product_tmpl_id.standard_price, 10)
        self.product1._run_fifo_vacuum()

        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 2.0)
        self.assertEqual(move1.stock_valuation_layer_ids.unit_cost, 10.0)
        self.assertEqual(move2.stock_valuation_layer_ids.value, -80.0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 0.0)

        self.assertEqual(len(move1.account_move_ids), 1)
        self.assertEqual(len(move2.account_move_ids), 1)

        self.assertEqual(self.product1.quantity_svl, 2)
        self.assertEqual(self.product1.value_svl, 20)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('debit')), 0)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('credit')), 100)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('debit')), 80)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('credit')), 0)

        # ---------------------------------------------------------------------
        # Send 4 more
        # ---------------------------------------------------------------------
        move3 = self.env['stock.move'].create({
            'name': '4 out',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 4.0,
            'price_unit': 0,
            'move_line_ids': [(0, 0, {
                'product_id': self.product1.id,
                'location_id': self.stock_location.id,
                'location_dest_id': self.customer_location.id,
                'product_uom_id': self.uom_unit.id,
                'qty_done': 4.0,
            })]
        })
        move3._action_confirm()
        move3._action_done()

        # stock values for move3
        self.assertEqual(move3.stock_valuation_layer_ids.value, -40.0)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, -2.0)

        # account values for move3
        valuation_aml = self._get_stock_valuation_move_lines()
        move3_valuation_aml = valuation_aml[-1]
        self.assertEqual(move3_valuation_aml.debit, 0)
        self.assertEqual(move3_valuation_aml.credit, 40)
        output_aml = self._get_stock_output_move_lines()
        move3_output_aml = output_aml[-1]
        self.assertEqual(move3_output_aml.debit, 40)
        self.assertEqual(move3_output_aml.credit, 0)

        self.assertEqual(len(move3.account_move_ids), 1)

        # ---------------------------------------------------------------------
        # Run the vacuum
        # ---------------------------------------------------------------------

        # Change the product's standard price manually to make sure it is not
        # recomputed
        self.assertEqual(self.product1.product_tmpl_id.standard_price, 10)
        self.product1.product_tmpl_id.standard_price = 15
        self.assertEqual(self.product1.product_tmpl_id.standard_price, 15)

        # Run the vacuum. Since negative stock was fixed, the standard price
        # should have changed.
        self.product1._run_fifo_vacuum()
        self.assertEqual(self.product1.product_tmpl_id.standard_price, 10)

        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0.0)
        self.assertEqual(move1.stock_valuation_layer_ids.unit_cost, 10.0)
        self.assertEqual(move2.stock_valuation_layer_ids.value, -80.0)
        self.assertEqual(move2.stock_valuation_layer_ids.remaining_qty, 0.0)
        self.assertEqual(move2.stock_valuation_layer_ids.unit_cost, 10.0)
        self.assertEqual(move3.stock_valuation_layer_ids.value, -40.0)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, -2.0)
        self.assertEqual(move3.stock_valuation_layer_ids.unit_cost, 10.0)

        self.assertEqual(len(move1.account_move_ids), 1)
        self.assertEqual(len(move2.account_move_ids), 1)
        self.assertEqual(len(move3.account_move_ids), 1)

        self.assertEqual(self.product1.quantity_svl, -2)
        self.assertEqual(self.product1.value_svl, -20)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('debit')), 0)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('credit')), 100)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('debit')), 120)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('credit')), 0)

        # ---------------------------------------------------------------------
        # Ending
        # ---------------------------------------------------------------------
        self.assertEqual(move1.stock_valuation_layer_ids.value, 100.0)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 0.0)
        self.assertEqual(move1.stock_valuation_layer_ids.unit_cost, 10.0)
        self.assertEqual(sum(move2.stock_valuation_layer_ids.mapped('value')), -80.0)
        self.assertEqual(sum(move2.stock_valuation_layer_ids.mapped('remaining_qty')), 0.0)
        self.assertEqual(move3.stock_valuation_layer_ids.value, -40.0)
        self.assertEqual(move3.stock_valuation_layer_ids.remaining_qty, -2.0)
        self.assertEqual(move3.stock_valuation_layer_ids.unit_cost, 10.0)

        self.assertEqual(len(move1.account_move_ids), 1)
        self.assertEqual(len(move2.account_move_ids), 1)
        self.assertEqual(len(move3.account_move_ids), 1)

        self.assertEqual(self.product1.quantity_svl, -2.0)
        self.assertEqual(self.product1.value_svl, -20.0)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('debit')), 0)
        self.assertEqual(sum(self._get_stock_input_move_lines().mapped('credit')), 100)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('debit')), 120)
        self.assertEqual(sum(self._get_stock_output_move_lines().mapped('credit')), 0)

    def test_average_automated_with_cost_change(self):
        """ Test of the handling of a cost change with a negative stock quantity with FIFO+AVCO costing method"""
        self.product1.categ_id.property_cost_method = 'average'
        self.product1.categ_id.property_valuation = 'real_time'

        # Step 1: Sell (and confirm) 10 units we don't have @ 100
        self.product1.standard_price = 100
        move1 = self.env['stock.move'].create({
            'name': 'Sale 10 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
        })
        move1._action_confirm()
        move1.quantity_done = 10.0
        move1._action_done()

        self.assertAlmostEqual(self.product1.quantity_svl, -10.0)
        self.assertEqual(move1.stock_valuation_layer_ids.value, -1000.0)
        self.assertAlmostEqual(self.product1.value_svl, -1000.0)

        # Step2: Change product cost from 100 to 10 -> Nothing should appear in inventory
        # valuation as the quantity is negative
        self.product1.standard_price = 10
        self.assertEqual(self.product1.value_svl, -1000.0)

        # Step 3: Make an inventory adjustment to set to total counted value at 0 -> Inventory
        # valuation should be at 0 with a compensation layer at 900 (1000 - 100)
        inventory_location = self.product1.property_stock_inventory
        inventory_location.company_id = self.env.company.id

        move2 = self.env['stock.move'].create({
            'name': 'Adjustment of 10 units',
            'location_id': inventory_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 10.0
        move2._action_done()

        # Check if the move adjustment has correctly been done
        self.assertAlmostEqual(self.product1.quantity_svl, 0.0)
        self.assertAlmostEqual(move2.stock_valuation_layer_ids.value, 100.0)

        # Check if the compensation layer is as expected, with final inventory value being 0
        self.assertAlmostEqual(self.product1.stock_valuation_layer_ids.sorted()[-1].value, 900.0)
        self.assertAlmostEqual(self.product1.value_svl, 0.0)

    def test_average_manual_1(self):
        ''' Set owner on incoming move => no valuation '''
        self.product1.categ_id.property_cost_method = 'average'
        self.product1.categ_id.property_valuation = 'manual_periodic'

        move1 = self.env['stock.move'].create({
            'name': 'Receive 1 unit at 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 1.0,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 1.0
        move1.move_line_ids.owner_id = self.owner1.id
        move1._action_done()

        self.assertAlmostEqual(self.product1.quantity_svl, 0.0)
        self.assertAlmostEqual(self.product1.value_svl, 0.0)

    def test_standard_perpetual_1(self):
        ''' Set owner on incoming move => no valuation '''
        self.product1.categ_id.property_cost_method = 'standard'

        move1 = self.env['stock.move'].create({
            'name': 'Receive 1 unit at 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 1.0,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 1.0
        move1.move_line_ids.owner_id = self.owner1.id
        move1._action_done()

        self.assertAlmostEqual(self.product1.qty_available, 1.0)
        self.assertAlmostEqual(self.product1.quantity_svl, 0.0)
        self.assertAlmostEqual(self.product1.value_svl, 0.0)

    def test_standard_manual_1(self):
        ''' Set owner on incoming move => no valuation '''
        self.product1.categ_id.property_cost_method = 'standard'
        self.product1.categ_id.property_valuation = 'manual_periodic'

        move1 = self.env['stock.move'].create({
            'name': 'Receive 1 unit at 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 1.0,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 1.0
        move1.move_line_ids.owner_id = self.owner1.id
        move1._action_done()

        self.assertAlmostEqual(self.product1.qty_available, 1.0)
        self.assertAlmostEqual(self.product1.quantity_svl, 0.0)
        self.assertAlmostEqual(self.product1.value_svl, 0.0)

    def test_standard_manual_2(self):
        """Validate a receipt as a regular stock user."""
        self.product1.categ_id.property_cost_method = 'standard'
        self.product1.categ_id.property_valuation = 'manual_periodic'

        self.product1.standard_price = 10.0

        move1 = self.env['stock.move'].with_user(self.inventory_user).create({
            'name': 'IN 10 units',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10.0
        move1._action_done()

    def test_standard_perpetual_2(self):
        """Validate a receipt as a regular stock user."""
        self.product1.categ_id.property_cost_method = 'standard'
        self.product1.categ_id.property_valuation = 'real_time'

        self.product1.standard_price = 10.0

        move1 = self.env['stock.move'].with_user(self.inventory_user).create({
            'name': 'IN 10 units',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10.0
        move1._action_done()

    def test_change_cost_method_1(self):
        """ Change the cost method from FIFO to AVCO.
        """
        # ---------------------------------------------------------------------
        # Use FIFO, make some operations
        # ---------------------------------------------------------------------
        self.product1.categ_id.property_cost_method = 'fifo'

        # receive 10@10
        move1 = self.env['stock.move'].create({
            'name': '10 units @ 10.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10.0
        move1._action_done()

        # receive 10@15
        move2 = self.env['stock.move'].create({
            'name': '10 units @ 10.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 15,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 10.0
        move2._action_done()

        # sell 1
        move3 = self.env['stock.move'].create({
            'name': 'Sale 5 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 1.0,
        })
        move3._action_confirm()
        move3._action_assign()
        move3.move_line_ids.qty_done = 1.0
        move3._action_done()

        self.assertAlmostEqual(self.product1.quantity_svl, 19)
        self.assertEqual(self.product1.value_svl, 240)

        # ---------------------------------------------------------------------
        # Change the production valuation to AVCO
        # ---------------------------------------------------------------------
        self.product1.categ_id.property_cost_method = 'average'

        # valuation should stay to ~240
        self.assertAlmostEqual(self.product1.quantity_svl, 19)
        self.assertAlmostEqual(self.product1.value_svl, 240, delta=0.04)

        # an accounting entry should be created
        # FIXME sle check it

        self.assertEqual(self.product1.standard_price, 12.63)

    def test_change_cost_method_2(self):
        """ Change the cost method from FIFO to standard.
        """
        # ---------------------------------------------------------------------
        # Use FIFO, make some operations
        # ---------------------------------------------------------------------
        self.product1.categ_id.property_cost_method = 'fifo'

        # receive 10@10
        move1 = self.env['stock.move'].create({
            'name': '10 units @ 10.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10.0
        move1._action_done()

        # receive 10@15
        move2 = self.env['stock.move'].create({
            'name': '10 units @ 10.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
            'price_unit': 15,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 10.0
        move2._action_done()

        # sell 1
        move3 = self.env['stock.move'].create({
            'name': 'Sale 5 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 1.0,
        })
        move3._action_confirm()
        move3._action_assign()
        move3.move_line_ids.qty_done = 1.0
        move3._action_done()

        self.assertAlmostEqual(self.product1.quantity_svl, 19)
        self.assertEqual(self.product1.value_svl, 240)

        # ---------------------------------------------------------------------
        # Change the production valuation to AVCO
        # ---------------------------------------------------------------------
        self.product1.categ_id.property_cost_method = 'standard'

        # valuation should stay to ~240
        self.assertAlmostEqual(self.product1.value_svl, 240, delta=0.04)
        self.assertAlmostEqual(self.product1.quantity_svl, 19)

        # no accounting entry should be created
        # FIXME sle check it

        self.assertEqual(self.product1.standard_price, 12.63)

    def test_fifo_sublocation_valuation_1(self):
        """ Set the main stock as a view location. Receive 2 units of a
        product, put 1 unit in an internal sublocation and the second
        one in a scrap sublocation. Only a single unit, the one in the
        internal sublocation, should be valued. Then, send these two
        quants to a customer, only the one in the internal location
        should be valued.
        """
        self.product1.categ_id.property_cost_method = 'fifo'

        view_location = self.env['stock.location'].create({'name': 'view', 'usage': 'view'})
        subloc1 = self.env['stock.location'].create({
            'name': 'internal',
            'usage': 'internal',
            'location_id': view_location.id,
        })
        # sane settings for a scrap location, company_id doesn't matter
        subloc2 = self.env['stock.location'].create({
            'name': 'scrap',
            'usage': 'inventory',
            'location_id': view_location.id,
            'scrap_location': True,
        })

        move1 = self.env['stock.move'].create({
            'name': '2 units @ 10.00 per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 2.0,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()

        move1.write({'move_line_ids': [
            (0, None, {
                'product_id': self.product1.id,
                'qty_done': 1,
                'location_id': self.supplier_location.id,
                'location_dest_id': subloc1.id,
                'product_uom_id': self.uom_unit.id
            }),
            (0, None, {
                'product_id': self.product1.id,
                'qty_done': 1,
                'location_id': self.supplier_location.id,
                'location_dest_id': subloc2.id,
                'product_uom_id': self.uom_unit.id
            }),
        ]})

        move1._action_done()
        self.assertEqual(move1.stock_valuation_layer_ids.value, 10)
        self.assertEqual(move1.stock_valuation_layer_ids.remaining_qty, 1)
        self.assertAlmostEqual(self.product1.qty_available, 0.0)
        self.assertAlmostEqual(self.product1.quantity_svl, 1.0)
        self.assertEqual(self.product1.value_svl, 10)
        self.assertTrue(len(move1.account_move_ids), 1)

        move2 = self.env['stock.move'].create({
            'name': '2 units out',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 2.0,
        })
        move2._action_confirm()
        move2._action_assign()

        move2.write({'move_line_ids': [
            (0, None, {
                'product_id': self.product1.id,
                'qty_done': 1,
                'location_id': subloc1.id,
                'location_dest_id': self.supplier_location.id,
                'product_uom_id': self.uom_unit.id
            }),
            (0, None, {
                'product_id': self.product1.id,
                'qty_done': 1,
                'location_id': subloc2.id,
                'location_dest_id': self.supplier_location.id,
                'product_uom_id': self.uom_unit.id
            }),
        ]})
        move2._action_done()
        self.assertEqual(move2.stock_valuation_layer_ids.value, -10)

    def test_move_in_or_out(self):
        """ Test a few combination of move and their move lines and
        check their valuation. A valued move should be IN or OUT.
        Creating a move that is IN and OUT should be forbidden.
        """
        # an internal move should be considered as OUT if any of its move line
        # is moved in a scrap location
        scrap = self.env['stock.location'].create({
            'name': 'scrap',
            'usage': 'inventory',
            'location_id': self.stock_location.id,
            'scrap_location': True,
        })

        move1 = self.env['stock.move'].create({
            'name': 'internal but out move',
            'location_id': self.stock_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 2.0,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.write({'move_line_ids': [
            (0, None, {
                'product_id': self.product1.id,
                'qty_done': 1,
                'location_id': self.stock_location.id,
                'location_dest_id': self.stock_location.id,
                'product_uom_id': self.uom_unit.id
            }),
            (0, None, {
                'product_id': self.product1.id,
                'qty_done': 1,
                'location_id': self.stock_location.id,
                'location_dest_id': scrap.id,
                'product_uom_id': self.uom_unit.id
            }),
        ]})
        self.assertEqual(move1._is_out(), True)

        # a move should be considered as invalid if some of its move lines are
        # entering the company and some are leaving
        customer1 = self.env['stock.location'].create({
            'name': 'customer',
            'usage': 'customer',
            'location_id': self.stock_location.id,
        })
        supplier1 = self.env['stock.location'].create({
            'name': 'supplier',
            'usage': 'supplier',
            'location_id': self.stock_location.id,
        })
        move2 = self.env['stock.move'].create({
            'name': 'internal but in and out move',
            'location_id': self.stock_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 2.0,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.write({'move_line_ids': [
            (0, None, {
                'product_id': self.product1.id,
                'qty_done': 1,
                'location_id': customer1.id,
                'location_dest_id': self.stock_location.id,
                'product_uom_id': self.uom_unit.id
            }),
            (0, None, {
                'product_id': self.product1.id,
                'qty_done': 1,
                'location_id': self.stock_location.id,
                'location_dest_id': customer1.id,
                'product_uom_id': self.uom_unit.id
            }),
        ]})
        self.assertEqual(move2._is_in(), True)
        self.assertEqual(move2._is_out(), True)
        with self.assertRaises(UserError):
            move2._action_done()

    def test_at_date_standard_1(self):
        self.product1.categ_id.property_cost_method = 'standard'

        now = Datetime.now()
        date1 = now - timedelta(days=8)
        date2 = now - timedelta(days=7)
        date3 = now - timedelta(days=6)
        date4 = now - timedelta(days=5)
        date5 = now - timedelta(days=4)
        date6 = now - timedelta(days=3)
        date7 = now - timedelta(days=2)
        date8 = now - timedelta(days=1)

        # set the standard price to 10
        self.product1.standard_price = 10.0

        # receive 10
        move1 = self.env['stock.move'].create({
            'name': 'in 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10
        move1._action_done()
        move1.date = date2
        move1.stock_valuation_layer_ids._write({'create_date': date2})

        self.assertEqual(self.product1.quantity_svl, 10)
        self.assertEqual(self.product1.value_svl, 100)

        # receive 20
        move2 = self.env['stock.move'].create({
            'name': 'in 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 20,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 20
        move2._action_done()
        move2.date = date3
        move2.stock_valuation_layer_ids._write({'create_date': date3})

        self.assertEqual(self.product1.quantity_svl, 30)
        self.assertEqual(self.product1.value_svl, 300)

        # send 15
        move3 = self.env['stock.move'].create({
            'name': 'out 10',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 15,
        })
        move3._action_confirm()
        move3._action_assign()
        move3.move_line_ids.qty_done = 15
        move3._action_done()
        move3.date = date4
        move3.stock_valuation_layer_ids._write({'create_date': date4})

        self.assertEqual(self.product1.quantity_svl, 15)
        self.assertEqual(self.product1.value_svl, 150)

        # set the standard price to 5
        self.product1.standard_price = 5
        self.product1.stock_valuation_layer_ids.sorted()[-1]._write({'create_date': date5})

        self.assertEqual(self.product1.quantity_svl, 15)
        self.assertEqual(self.product1.value_svl, 75)

        # send 10
        move4 = self.env['stock.move'].create({
            'name': 'out 10',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10,
        })
        move4._action_confirm()
        move4._action_assign()
        move4.move_line_ids.qty_done = 10
        move4._action_done()
        move4.date = date6
        move4.stock_valuation_layer_ids._write({'create_date': date6})

        self.assertEqual(self.product1.quantity_svl, 5)
        self.assertEqual(self.product1.value_svl, 25.0)

        # set the standard price to 7.5
        self.product1.standard_price = 7.5
        self.product1.stock_valuation_layer_ids.sorted()[-1]._write({'create_date': date7})

        # receive 90
        move5 = self.env['stock.move'].create({
            'name': 'in 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 90,
        })
        move5._action_confirm()
        move5._action_assign()
        move5.move_line_ids.qty_done = 90
        move5._action_done()
        move5.date = date8
        move5.stock_valuation_layer_ids._write({'create_date': date8})

        self.assertEqual(self.product1.quantity_svl, 95)
        self.assertEqual(self.product1.value_svl, 712.5)

        # Quantity available at date
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date1)).quantity_svl, 0)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date2)).quantity_svl, 10)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date3)).quantity_svl, 30)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date4)).quantity_svl, 15)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date5)).quantity_svl, 15)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date6)).quantity_svl, 5)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date7)).quantity_svl, 5)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date8)).quantity_svl, 95)

        # Valuation at date
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date1)).value_svl, 0)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date2)).value_svl, 100)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date3)).value_svl, 300)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date4)).value_svl, 150)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date5)).value_svl, 75)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date6)).value_svl, 25)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date8)).value_svl, 712.5)

        # edit the done quantity of move1, decrease it
        move1.quantity_done = 5

        # the change is only visible right now
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date2)).quantity_svl, 10)
        self.assertEqual(self.product1.quantity_svl, 90)
        # as when we decrease a quantity on a recreipt, we consider it as a out move with the price
        # of today, the value will be decrease of 100 - (5*7.5)
        self.assertEqual(sum(move1.stock_valuation_layer_ids.mapped('value')), 62.5)
        # but the change is still only visible right now
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date2)).value_svl, 100)

        # edit move 4, send 15 instead of 10
        move4.quantity_done = 15
        # -(10*5) - (5*7.5)
        self.assertEqual(sum(move4.stock_valuation_layer_ids.mapped('value')), -87.5)

        # the change is only visible right now
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date6)).value_svl, 25)

        self.assertEqual(self.product1.quantity_svl, 85)
        self.assertEqual(self.product1.value_svl, 637.5)

    def test_at_date_fifo_1(self):
        """ Make some operations at different dates, check that the results of the valuation at
        date wizard are consistent. Afterwards, edit the done quantity of some operations. The
        valuation at date results should take these changes into account.
        """
        self.product1.categ_id.property_cost_method = 'fifo'

        now = Datetime.now()
        date1 = now - timedelta(days=8)
        date2 = now - timedelta(days=7)
        date3 = now - timedelta(days=6)
        date4 = now - timedelta(days=5)
        date5 = now - timedelta(days=4)
        date6 = now - timedelta(days=3)

        # receive 10@10
        move1 = self.env['stock.move'].create({
            'name': 'in 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10
        move1._action_done()
        move1.date = date1
        move1.stock_valuation_layer_ids._write({'create_date': date1})

        self.assertEqual(self.product1.quantity_svl, 10)
        self.assertEqual(self.product1.value_svl, 100)

        # receive 10@12
        move2 = self.env['stock.move'].create({
            'name': 'in 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10,
            'price_unit': 12,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 10
        move2._action_done()
        move2.date = date2
        move2.stock_valuation_layer_ids._write({'create_date': date2})

        self.assertAlmostEqual(self.product1.quantity_svl, 20)
        self.assertEqual(self.product1.value_svl, 220)

        # send 15
        move3 = self.env['stock.move'].create({
            'name': 'out 10',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 15,
        })
        move3._action_confirm()
        move3._action_assign()
        move3.move_line_ids.qty_done = 15
        move3._action_done()
        move3.date = date3
        move3.stock_valuation_layer_ids._write({'create_date': date3})

        self.assertAlmostEqual(self.product1.quantity_svl, 5.0)
        self.assertEqual(self.product1.value_svl, 60)

        # send 20
        move4 = self.env['stock.move'].create({
            'name': 'out 10',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 20,
        })
        move4._action_confirm()
        move4._action_assign()
        move4.move_line_ids.qty_done = 20
        move4._action_done()
        move4.date = date4
        move4.stock_valuation_layer_ids._write({'create_date': date4})

        self.assertAlmostEqual(self.product1.quantity_svl, -15.0)
        self.assertEqual(self.product1.value_svl, -180)

        # receive 100@15
        move5 = self.env['stock.move'].create({
            'name': 'in 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 100,
            'price_unit': 15,
        })
        move5._action_confirm()
        move5._action_assign()
        move5.move_line_ids.qty_done = 100
        move5._action_done()
        move5.date = date5
        move5.stock_valuation_layer_ids._write({'create_date': date5})

        # the vacuum ran
        move4.stock_valuation_layer_ids.sorted()[-1]._write({'create_date': date6})

        self.assertEqual(self.product1.quantity_svl, 85)
        self.assertEqual(self.product1.value_svl, 1275)

        # Edit the quantity done of move1, increase it.
        move1.quantity_done = 20

        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date1)).quantity_svl, 10)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date1)).value_svl, 100)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date2)).quantity_svl, 20)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date2)).value_svl, 220)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date3)).quantity_svl, 5)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date3)).value_svl, 60)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date4)).quantity_svl, -15)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date4)).value_svl, -180)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date5)).quantity_svl, 85)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date5)).value_svl, 1320)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date6)).quantity_svl, 85)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date6)).value_svl, 1275)
        self.assertEqual(self.product1.quantity_svl, 95)
        self.assertEqual(self.product1.value_svl, 1375)

    def test_at_date_fifo_2(self):
        self.product1.categ_id.property_cost_method = 'fifo'

        now = Datetime.now()
        date1 = now - timedelta(days=8)
        date2 = now - timedelta(days=7)
        date3 = now - timedelta(days=6)
        date4 = now - timedelta(days=5)
        date5 = now - timedelta(days=4)

        # receive 10@10
        move1 = self.env['stock.move'].create({
            'name': 'in 10@10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10,
            'price_unit': 10,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10
        move1._action_done()
        move1.date = date1
        move1.stock_valuation_layer_ids._write({'create_date': date1})

        self.assertAlmostEqual(self.product1.quantity_svl, 10.0)
        self.assertEqual(self.product1.value_svl, 100)

        # receive 10@15
        move2 = self.env['stock.move'].create({
            'name': 'in 10@15',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10,
            'price_unit': 15,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 10
        move2._action_done()
        move2.date = date2
        move2.stock_valuation_layer_ids._write({'create_date': date2})

        self.assertAlmostEqual(self.product1.quantity_svl, 20.0)
        self.assertEqual(self.product1.value_svl, 250)

        # send 30
        move3 = self.env['stock.move'].create({
            'name': 'out 30',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 30,
        })
        move3._action_confirm()
        move3._action_assign()
        move3.move_line_ids.qty_done = 30
        move3._action_done()
        move3.date = date3
        move3.stock_valuation_layer_ids._write({'create_date': date3})

        self.assertAlmostEqual(self.product1.quantity_svl, -10.0)
        self.assertEqual(self.product1.value_svl, -150)

        # receive 10@20
        move4 = self.env['stock.move'].create({
            'name': 'in 10@20',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10,
            'price_unit': 20,
        })
        move4._action_confirm()
        move4._action_assign()
        move4.move_line_ids.qty_done = 10
        move4._action_done()
        move4.date = date4
        move3.stock_valuation_layer_ids.sorted()[-1]._write({'create_date': date4})
        move4.stock_valuation_layer_ids._write({'create_date': date4})

        self.assertAlmostEqual(self.product1.quantity_svl, 0.0)
        self.assertEqual(self.product1.value_svl, 0)

        # receive 10@10
        move5 = self.env['stock.move'].create({
            'name': 'in 10@10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10,
            'price_unit': 10,
        })
        move5._action_confirm()
        move5._action_assign()
        move5.move_line_ids.qty_done = 10
        move5._action_done()
        move5.date = date5
        move5.stock_valuation_layer_ids._write({'create_date': date5})

        self.assertAlmostEqual(self.product1.quantity_svl, 10.0)
        self.assertEqual(self.product1.value_svl, 100)

        # ---------------------------------------------------------------------
        # ending: perpetual valuation
        # ---------------------------------------------------------------------
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date1)).quantity_svl, 10)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date1)).value_svl, 100)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date2)).quantity_svl, 20)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date2)).value_svl, 250)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date3)).quantity_svl, -10)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date3)).value_svl, -150)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date4)).quantity_svl, 0)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date4)).value_svl, 0)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date5)).quantity_svl, 10)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date5)).value_svl, 100)
        self.assertEqual(self.product1.quantity_svl, 10)
        self.assertEqual(self.product1.value_svl, 100)

    def test_inventory_fifo_1(self):
        """ Make an inventory from a location with a company set, and ensure the product has a stock
        value. When the product is sold, ensure there is no remaining quantity on the original move
        and no stock value.
        """
        self.product1.standard_price = 15
        self.product1.categ_id.property_cost_method = 'fifo'
        inventory_location = self.product1.property_stock_inventory
        inventory_location.company_id = self.env.company.id

        # Start Inventory: 12 units
        move1 = self.env['stock.move'].create({
            'name': 'Adjustment of 12 units',
            'location_id': inventory_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 12.0,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 12.0
        move1._action_done()

        self.assertAlmostEqual(move1.stock_valuation_layer_ids.value, 180.0)
        self.assertAlmostEqual(move1.stock_valuation_layer_ids.remaining_qty, 12.0)
        self.assertAlmostEqual(self.product1.value_svl, 180.0)

        # Sell the 12 units
        move2 = self.env['stock.move'].create({
            'name': 'Sell 12 units',
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 12.0,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 12.0
        move2._action_done()

        self.assertAlmostEqual(move1.stock_valuation_layer_ids.remaining_qty, 0.0)
        self.assertAlmostEqual(self.product1.value_svl, 0.0)

    def test_at_date_average_1(self):
        """ Set a company on the inventory loss, take items from there then put items there, check
        the values and quantities at date.
        """
        now = Datetime.now()
        date1 = now - timedelta(days=8)
        date2 = now - timedelta(days=7)

        self.product1.standard_price = 10
        self.product1.product_tmpl_id.cost_method = 'average'
        inventory_location = self.product1.property_stock_inventory
        inventory_location.company_id = self.env.company.id

        move1 = self.env['stock.move'].create({
            'name': 'Adjustment of 10 units',
            'location_id': inventory_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 10.0,
        })
        move1._action_confirm()
        move1._action_assign()
        move1.move_line_ids.qty_done = 10.0
        move1._action_done()
        move1.date = date1
        move1.stock_valuation_layer_ids._write({'create_date': date1})

        move2 = self.env['stock.move'].create({
            'name': 'Sell 5 units',
            'location_id': self.stock_location.id,
            'location_dest_id': inventory_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 5.0,
        })
        move2._action_confirm()
        move2._action_assign()
        move2.move_line_ids.qty_done = 5.0
        move2._action_done()
        move2.date = date2
        move2.stock_valuation_layer_ids._write({'create_date': date2})

        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date1)).quantity_svl, 10)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date1)).value_svl, 100)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date2)).quantity_svl, 5)
        self.assertEqual(self.product1.with_context(to_date=Datetime.to_string(date2)).value_svl, 50)

    def test_forecast_report_value(self):
        """ Create a SVL for two companies using different currency, and open
        the forecast report. Checks the forecast report use the good currency to
        display the product's valuation.
        """
        # Settings
        self.product1.categ_id.property_valuation = 'manual_periodic'
        # Creates two new currencies.
        currency_1 = self.env['res.currency'].create({
            'name': 'UNF',
            'symbol': 'U',
            'rounding': 0.01,
            'currency_unit_label': 'Unifranc',
            'rate': 1,
            'position': 'before',
        })
        currency_2 = self.env['res.currency'].create({
            'name': 'DBL',
            'symbol': 'DD',
            'rounding': 0.01,
            'currency_unit_label': 'Doublard',
            'rate': 2,
        })
        # Create a new company using the "Unifranc" as currency.
        company_form = Form(self.env['res.company'])
        company_form.name = "BB Inc."
        company_form.currency_id = currency_1
        company_1 = company_form.save()
        # Create a new company using the "Doublard" as currency.
        company_form = Form(self.env['res.company'])
        company_form.name = "BB Corp"
        company_form.currency_id = currency_2
        company_2 = company_form.save()
        # Gets warehouses and locations.
        warehouse_1 = self.env['stock.warehouse'].search([('company_id', '=', company_1.id)], limit=1)
        warehouse_2 = self.env['stock.warehouse'].search([('company_id', '=', company_2.id)], limit=1)
        stock_1 = warehouse_1.lot_stock_id
        stock_2 = warehouse_2.lot_stock_id
        self.env.user.company_ids += company_1
        self.env.user.company_ids += company_2
        # Updates the product's value.
        self.product1.with_company(company_1).standard_price = 10
        self.product1.with_company(company_2).standard_price = 12

        # ---------------------------------------------------------------------
        # Receive 5 units @ 10.00 per unit (company_1)
        # ---------------------------------------------------------------------
        move_1 = self.env['stock.move'].with_company(company_1).create({
            'name': 'IN 5 units @ 10.00 U per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': stock_1.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 5.0,
        })
        move_1._action_confirm()
        move_1.move_line_ids.qty_done = 5.0
        move_1._action_done()

        # ---------------------------------------------------------------------
        # Receive 4 units @ 12.00 per unit (company_2)
        # ---------------------------------------------------------------------
        move_2 = self.env['stock.move'].with_company(company_2).create({
            'name': 'IN 4 units @ 12.00 DD per unit',
            'location_id': self.supplier_location.id,
            'location_dest_id': stock_2.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 4.0,
        })
        move_2._action_confirm()
        move_2.move_line_ids.qty_done = 4.0
        move_2._action_done()

        # Opens the report for each company and compares the values.
        report = self.env['report.stock.report_product_product_replenishment']
        report_for_company_1 = report.with_context(warehouse=warehouse_1.id)
        report_for_company_2 = report.with_context(warehouse=warehouse_2.id)
        report_value_1 = report_for_company_1.get_report_values(docids=self.product1.ids)
        report_value_2 = report_for_company_2.get_report_values(docids=self.product1.ids)
        self.assertEqual(report_value_1['docs']['value'], "U 50.00")
        self.assertEqual(report_value_2['docs']['value'], "48.00 DD")

    def test_fifo_and_sml_owned_by_company(self):
        """
        When receiving a FIFO product, if the picking is owned by the company,
        there should be a SVL and an account move linked to the product SM
        """
        self.product1.categ_id.property_cost_method = 'fifo'

        receipt = self.env['stock.picking'].create({
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'picking_type_id': self.env.ref('stock.picking_type_in').id,
            'owner_id': self.env.company.partner_id.id,
        })

        move = self.env['stock.move'].create({
            'picking_id': receipt.id,
            'name': 'IN 1 @ 10',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': self.uom_unit.id,
            'product_uom_qty': 1.0,
            'price_unit': 10,
        })
        receipt.action_confirm()
        move.quantity_done = 1
        receipt.button_validate()

        self.assertEqual(move.stock_valuation_layer_ids.value, 10)
        self.assertEqual(move.stock_valuation_layer_ids.account_move_id.amount_total, 10)

    def test_create_svl_different_uom(self):
        """
        Create a transfer and use in the move a different unit of measure than
        the one set on the product form and ensure that when the qty done is changed
        and the picking is already validated, an svl is created in the uom set in the product.
        """
        uom_dozen = self.env.ref('uom.product_uom_dozen')
        receipt = self.env['stock.picking'].create({
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'picking_type_id': self.env.ref('stock.picking_type_in').id,
            'owner_id': self.env.company.partner_id.id,
        })

        move = self.env['stock.move'].create({
            'picking_id': receipt.id,
            'name': 'test',
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'product_id': self.product1.id,
            'product_uom': uom_dozen.id,
            'product_uom_qty': 1.0,
            'price_unit': 10,
        })
        receipt.action_confirm()
        move.quantity_done = 1
        receipt.button_validate()

        self.assertEqual(self.product1.uom_name, 'Units')
        self.assertEqual(self.product1.quantity_svl, 12)
        move.quantity_done = 2
        self.assertEqual(self.product1.quantity_svl, 24)

    def test_replenishment_report_access_rights(self):
        # One delivery and one receipt
        pickings = self.env['stock.picking'].create([{
            'picking_type_id': self.env.ref('stock.picking_type_out').id,
            'location_id': self.stock_location.id,
            'location_dest_id': self.customer_location.id,
            'move_ids': [(0, 0, {
                'name': 'delivery',
                'location_id': self.stock_location.id,
                'location_dest_id': self.customer_location.id,
                'product_id': self.product1.id,
                'product_uom': self.product1.uom_id.id,
                'product_uom_qty': 1.0,
                'price_unit': 10,
            })],
        }, {
            'picking_type_id': self.env.ref('stock.picking_type_in').id,
            'location_id': self.supplier_location.id,
            'location_dest_id': self.stock_location.id,
            'move_ids': [(0, 0, {
                'name': 'delivery',
                'location_id': self.supplier_location.id,
                'location_dest_id': self.stock_location.id,
                'product_id': self.product1.id,
                'product_uom': self.product1.uom_id.id,
                'product_uom_qty': 1.0,
                'price_unit': 10,
            })],
        }])
        pickings.action_confirm()

        user_report = self.env['report.stock.report_product_product_replenishment'].with_user(self.inventory_user)
        user_report.get_report_values(docids=self.product1.ids, serialize=True)
        user_report.get_report_values(docids=self.product1.ids)

    def test_average_manual_price_change(self):
        """
        When doing a Manual Price Change, an SVL is created to update the value_svl.
        This test check that the value of this SVL is correct and does result in new_std_price * quantity.
        To do so, we create 2 In moves, which result in a standard price rounded at $5.29, the non-rounded value ≃ 5.2857.
        Then we update the standard price to $7
        """
        self.product1.categ_id.property_cost_method = 'average'
        self._make_in_move(self.product1, 5, unit_cost=5)
        self._make_in_move(self.product1, 2, unit_cost=6)
        self.product1.write({'standard_price': 7})
        self.assertEqual(self.product1.value_svl, 49)

    def test_average_manual_revaluation(self):
        self.product1.categ_id.property_cost_method = 'average'

        self._make_in_move(self.product1, 1, unit_cost=20)
        self._make_in_move(self.product1, 1, unit_cost=30)
        self.assertEqual(self.product1.standard_price, 25)

        Form(self.env['stock.valuation.layer.revaluation'].with_context({
            'default_product_id': self.product1.id,
            'default_company_id': self.env.company.id,
            'default_account_id': self.stock_valuation_account,
            'default_added_value': -10.0,
        })).save().action_validate_revaluation()

        self.assertEqual(self.product1.standard_price, 20)

    def test_fifo_manual_revaluation(self):
        revaluation_vals = {
            'default_product_id': self.product1.id,
            'default_company_id': self.env.company.id,
            'default_account_id': self.stock_valuation_account,
        }
        self.product1.categ_id.property_cost_method = 'fifo'

        self._make_in_move(self.product1, 1, unit_cost=15)
        self._make_in_move(self.product1, 1, unit_cost=30)
        self.assertEqual(self.product1.standard_price, 15)

        Form(self.env['stock.valuation.layer.revaluation'].with_context({
            **revaluation_vals,
            'default_added_value': -10.0,
        })).save().action_validate_revaluation()

        self.assertEqual(self.product1.standard_price, 10)

        revaluation = Form(self.env['stock.valuation.layer.revaluation'].with_context({
            **revaluation_vals,
            'default_added_value': -25.0,
        })).save()

        with self.assertRaises(UserError):
            revaluation.action_validate_revaluation()

    def test_manual_revaluation_statement(self):
        self.product1.categ_id.property_cost_method = 'fifo'
        self.product1.categ_id.property_valuation = 'real_time'

        self._make_in_move(self.product1, 1, unit_cost=15)

        revaluation_form = Form(self.env['stock.valuation.layer.revaluation'].with_context({
            'default_product_id': self.product1.id,
            'default_company_id': self.env.company.id,
        }))
        revaluation_form.added_value = 10.0
        revaluation_form.account_id = self.stock_valuation_account
        revaluation = revaluation_form.save()
        revaluation.action_validate_revaluation()

        account_move = self.env['stock.valuation.layer'].search([
            ('product_id', '=', self.product1.id),
            ('stock_move_id', '=', False),
        ]).account_move_id

        self.assertIn('OdooBot changed stock valuation from  15.0 to 25.0 -', account_move.line_ids[0].name)

    def test_diff_uom_quantity_update_after_done(self):
        """Test that when the UoM of the stock.move.line is different from the stock.move,
        the quantity update after done (unlocked) use the correct UoM"""
        unit_uom = self.env.ref('uom.product_uom_unit')
        dozen_uom = self.env.ref('uom.product_uom_dozen')
        move = self.env['stock.move'].create({
            'name': '12 Units of Product1',
            'product_id': self.product1.id,
            'location_id': self.env.ref('stock.stock_location_suppliers').id,
            'location_dest_id': self.env.ref('stock.stock_location_stock').id,
            'product_uom': unit_uom.id,
            'product_uom_qty': 12,
            'price_unit': 1,
            'picking_type_id': self.env.ref('stock.picking_type_in').id,
        })
        move._action_confirm()
        move._action_assign()

        # Change from 12 Units to 1 Dozen (aka: same quantity)
        move.move_line_ids = [
            Command.update(
                move.move_line_ids[0].id,
                {'qty_done': 1, 'product_uom_id': dozen_uom.id}
            )
        ]
        move._action_done()

        self.assertEqual(move.quantity_done, 12)
        self.assertEqual(move.stock_valuation_layer_ids.quantity, 12)

        move.picking_id.action_toggle_is_locked()
        # Change from 1 Dozen to 2 Dozens (12 -> 24)
        move.move_line_ids = [Command.update(move.move_line_ids[0].id, {'qty_done': 2})]

        self.assertEqual(move.quantity_done, 24)
        self.assertRecordValues(move.stock_valuation_layer_ids, [{'quantity': 12}, {'quantity': 12}])