[IMP] app: improve API, small refactoring

tests/app/__snapshots__/app.test.ts.snap

@@ -0,0 +1,43 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`app App supports env with getters/setters 1`] = `
+"function anonymous(bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, component, comment } = bdom;
+  
+  let block1 = createBlock(\`<div><block-text-0/> <block-text-1/></div>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    let d1 = ctx['env'].someVal;
+    let d2 = Object.keys(ctx['env'].services);
+    return block1([d1, d2]);
+  }
+}"
+`;
+
+exports[`app can configure an app with props 1`] = `
+"function anonymous(bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, component, comment } = bdom;
+  
+  let block1 = createBlock(\`<div><block-text-0/></div>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    let d1 = ctx['props'].value;
+    return block1([d1]);
+  }
+}"
+`;
+
+exports[`app destroy remove the widget from the DOM 1`] = `
+"function anonymous(bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, component, comment } = bdom;
+  
+  let block1 = createBlock(\`<div/>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    return block1();
+  }
+}"
+`;

tests/app/app.test.ts

@@ -0,0 +1,62 @@
+import { App, Component, xml } from "../../src";
+import { status } from "../../src/component/status";
+import { makeTestFixture, snapshotEverything, nextTick, elem } from "../helpers";
+
+let fixture: HTMLElement;
+
+snapshotEverything();
+
+beforeEach(() => {
+  fixture = makeTestFixture();
+});
+
+describe("app", () => {
+  test("destroy remove the widget from the DOM", async () => {
+    class SomeComponent extends Component {
+      static template = xml`<div/>`;
+    }
+
+    const app = new App(SomeComponent);
+    const comp = await app.mount(fixture);
+    const el = elem(comp);
+    expect(document.contains(el)).toBe(true);
+    app.destroy();
+    expect(document.contains(el)).toBe(false);
+    expect(status(comp)).toBe("destroyed");
+  });
+
+  test("App supports env with getters/setters", async () => {
+    let someVal = "maggot";
+
+    const services: any = { serv1: "" };
+    const env = {
+      get someVal() {
+        return someVal;
+      },
+      services,
+    };
+
+    class SomeComponent extends Component {
+      static template = xml`<div><t t-esc="env.someVal" /> <t t-esc="Object.keys(env.services)" /></div>`;
+    }
+
+    const app = new App(SomeComponent, { env });
+    const comp = await app.mount(fixture);
+    expect(fixture.innerHTML).toBe("<div>maggot serv1</div>");
+    someVal = "brain";
+    services.serv2 = "";
+    comp.render();
+    await nextTick();
+    expect(fixture.innerHTML).toBe("<div>brain serv1,serv2</div>");
+  });
+
+  test("can configure an app with props", async () => {
+    class SomeComponent extends Component {
+      static template = xml`<div t-esc="props.value"/>`;
+    }
+
+    const app = new App(SomeComponent, { props: { value: 333 } });
+    await app.mount(fixture);
+    expect(fixture.innerHTML).toBe("<div>333</div>");
+  });
+});