Add thread notification with server assistance (MSC3773) (#9400)

Co-authored-by: Janne Mareike Koschinski <janne@kuschku.de>

test/components/structures/RoomStatusBar-test.tsx

@@ -0,0 +1,91 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { MatrixClient, PendingEventOrdering } from "matrix-js-sdk/src/client";
+import { EventStatus, MatrixEvent } from "matrix-js-sdk/src/models/event";
+import { Room } from "matrix-js-sdk/src/models/room";
+
+import { getUnsentMessages } from "../../../src/components/structures/RoomStatusBar";
+import { MatrixClientPeg } from "../../../src/MatrixClientPeg";
+import { mkEvent, stubClient } from "../../test-utils/test-utils";
+import { mkThread } from "../../test-utils/threads";
+
+describe("RoomStatusBar", () => {
+    const ROOM_ID = "!roomId:example.org";
+    let room: Room;
+    let client: MatrixClient;
+    let event: MatrixEvent;
+
+    beforeEach(() => {
+        jest.clearAllMocks();
+
+        stubClient();
+        client = MatrixClientPeg.get();
+        room = new Room(ROOM_ID, client, client.getUserId(), {
+            pendingEventOrdering: PendingEventOrdering.Detached,
+        });
+        event = mkEvent({
+            event: true,
+            type: "m.room.message",
+            user: "@user1:server",
+            room: "!room1:server",
+            content: {},
+        });
+        event.status = EventStatus.NOT_SENT;
+    });
+
+    describe("getUnsentMessages", () => {
+        it("returns no unsent messages", () => {
+            expect(getUnsentMessages(room)).toHaveLength(0);
+        });
+
+        it("checks the event status", () => {
+            room.addPendingEvent(event, "123");
+
+            expect(getUnsentMessages(room)).toHaveLength(1);
+            event.status = EventStatus.SENT;
+
+            expect(getUnsentMessages(room)).toHaveLength(0);
+        });
+
+        it("only returns events related to a thread", () => {
+            room.addPendingEvent(event, "123");
+
+            const { rootEvent, events } = mkThread({
+                room,
+                client,
+                authorId: "@alice:example.org",
+                participantUserIds: ["@alice:example.org"],
+                length: 2,
+            });
+            rootEvent.status = EventStatus.NOT_SENT;
+            room.addPendingEvent(rootEvent, rootEvent.getId());
+            for (const event of events) {
+                event.status = EventStatus.NOT_SENT;
+                room.addPendingEvent(event, Date.now() + Math.random() + "");
+            }
+
+            const pendingEvents = getUnsentMessages(room, rootEvent.getId());
+
+            expect(pendingEvents[0].threadRootId).toBe(rootEvent.getId());
+            expect(pendingEvents[1].threadRootId).toBe(rootEvent.getId());
+            expect(pendingEvents[2].threadRootId).toBe(rootEvent.getId());
+
+            // Filters out the non thread events
+            expect(pendingEvents.every(ev => ev.getId() !== event.getId())).toBe(true);
+        });
+    });
+});