Add voice broadcast pre-recoding PiP (#9548)

test/voice-broadcast/models/VoiceBroadcastPreRecording-test.ts

@@ -0,0 +1,77 @@
+/*
+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, Room, RoomMember } from "matrix-js-sdk/src/matrix";
+
+import {
+    startNewVoiceBroadcastRecording,
+    VoiceBroadcastPreRecording,
+    VoiceBroadcastRecordingsStore,
+} from "../../../src/voice-broadcast";
+import { stubClient } from "../../test-utils";
+
+jest.mock("../../../src/voice-broadcast/utils/startNewVoiceBroadcastRecording");
+
+describe("VoiceBroadcastPreRecording", () => {
+    const roomId = "!room:example.com";
+    let client: MatrixClient;
+    let room: Room;
+    let sender: RoomMember;
+    let recordingsStore: VoiceBroadcastRecordingsStore;
+    let preRecording: VoiceBroadcastPreRecording;
+    let onDismiss: (voiceBroadcastPreRecording: VoiceBroadcastPreRecording) => void;
+
+    beforeAll(() => {
+        client = stubClient();
+        room = new Room(roomId, client, client.getUserId() || "");
+        sender = new RoomMember(roomId, client.getUserId() || "");
+        recordingsStore = new VoiceBroadcastRecordingsStore();
+    });
+
+    beforeEach(() => {
+        onDismiss = jest.fn();
+        preRecording = new VoiceBroadcastPreRecording(room, sender, client, recordingsStore);
+        preRecording.on("dismiss", onDismiss);
+    });
+
+    describe("start", () => {
+        beforeEach(() => {
+            preRecording.start();
+        });
+
+        it("should start a new voice broadcast recording", () => {
+            expect(startNewVoiceBroadcastRecording).toHaveBeenCalledWith(
+                room,
+                client,
+                recordingsStore,
+            );
+        });
+
+        it("should emit a dismiss event", () => {
+            expect(onDismiss).toHaveBeenCalledWith(preRecording);
+        });
+    });
+
+    describe("cancel", () => {
+        beforeEach(() => {
+            preRecording.cancel();
+        });
+
+        it("should emit a dismiss event", () => {
+            expect(onDismiss).toHaveBeenCalledWith(preRecording);
+        });
+    });
+});