add notification service

web/static/tests/services/notifications.test.ts

@@ -0,0 +1,46 @@
+import {
+  NotificationManager,
+  Notification,
+  INotificationManager
+} from "../../src/ts/services/notifications";
+
+//------------------------------------------------------------------------------
+// Setup and helpers
+//------------------------------------------------------------------------------
+
+function makeNotification(notif: Partial<Notification> = {}): Notification {
+  const defaultNotif = {
+    id: 1,
+    title: "title",
+    message: "message",
+    type: "notification",
+    sticky: false
+  };
+  return Object.assign(defaultNotif, notif);
+}
+
+//------------------------------------------------------------------------------
+// Tests
+//------------------------------------------------------------------------------
+
+test("can subscribe and add notification", () => {
+  let notified = false;
+  const notifications = new NotificationManager();
+  notifications.on("notification_added", {}, () => (notified = true));
+  expect(notified).toBe(false);
+  const id = notifications.add(makeNotification());
+  expect(notified).toBe(true);
+  expect(id).toBeDefined();
+});
+
+test("can close a notification", () => {
+  const notifications: INotificationManager = new NotificationManager();
+  let notified = false;
+  notifications.on("notification_closed", {}, () => (notified = true));
+
+  const id = notifications.add(makeNotification());
+  expect(notified).toBe(false);
+
+  notifications.close(id);
+  expect(notified).toBe(true);
+});