Implement small broadcast PiP (#9755)

test/voice-broadcast/components/molecules/VoiceBroadcastSmallPlaybackBody-test.tsx

@@ -0,0 +1,132 @@
+/*
+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 React from "react";
+import { MatrixClient, MatrixEvent } from "matrix-js-sdk/src/matrix";
+import { render, RenderResult } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import { mocked } from "jest-mock";
+
+import {
+    VoiceBroadcastInfoState,
+    VoiceBroadcastLiveness,
+    VoiceBroadcastPlayback,
+    VoiceBroadcastSmallPlaybackBody,
+    VoiceBroadcastPlaybackState,
+} from "../../../../src/voice-broadcast";
+import { stubClient } from "../../../test-utils";
+import { mkVoiceBroadcastInfoStateEvent } from "../../utils/test-utils";
+
+// mock RoomAvatar, because it is doing too much fancy stuff
+jest.mock("../../../../src/components/views/avatars/RoomAvatar", () => ({
+    __esModule: true,
+    default: jest.fn().mockImplementation(({ room }) => {
+        return <div data-testid="room-avatar">room avatar: {room.name}</div>;
+    }),
+}));
+
+describe("<VoiceBroadcastSmallPlaybackBody />", () => {
+    const userId = "@user:example.com";
+    const roomId = "!room:example.com";
+    let client: MatrixClient;
+    let infoEvent: MatrixEvent;
+    let playback: VoiceBroadcastPlayback;
+    let renderResult: RenderResult;
+
+    beforeAll(() => {
+        client = stubClient();
+        mocked(client.relations).mockClear();
+        mocked(client.relations).mockResolvedValue({ events: [] });
+
+        infoEvent = mkVoiceBroadcastInfoStateEvent(
+            roomId,
+            VoiceBroadcastInfoState.Stopped,
+            userId,
+            client.getDeviceId()!,
+        );
+    });
+
+    beforeEach(() => {
+        playback = new VoiceBroadcastPlayback(infoEvent, client);
+        jest.spyOn(playback, "toggle").mockImplementation(() => Promise.resolve());
+        jest.spyOn(playback, "getLiveness");
+        jest.spyOn(playback, "getState");
+    });
+
+    describe("when rendering a buffering broadcast", () => {
+        beforeEach(() => {
+            mocked(playback.getState).mockReturnValue(VoiceBroadcastPlaybackState.Buffering);
+            mocked(playback.getLiveness).mockReturnValue("live");
+            renderResult = render(<VoiceBroadcastSmallPlaybackBody playback={playback} />);
+        });
+
+        it("should render as expected", () => {
+            expect(renderResult.container).toMatchSnapshot();
+        });
+    });
+
+    describe("when rendering a playing broadcast", () => {
+        beforeEach(() => {
+            mocked(playback.getState).mockReturnValue(VoiceBroadcastPlaybackState.Playing);
+            mocked(playback.getLiveness).mockReturnValue("not-live");
+            renderResult = render(<VoiceBroadcastSmallPlaybackBody playback={playback} />);
+        });
+
+        it("should render as expected", () => {
+            expect(renderResult.container).toMatchSnapshot();
+        });
+    });
+
+    describe(`when rendering a stopped broadcast`, () => {
+        beforeEach(() => {
+            mocked(playback.getState).mockReturnValue(VoiceBroadcastPlaybackState.Stopped);
+            mocked(playback.getLiveness).mockReturnValue("not-live");
+            renderResult = render(<VoiceBroadcastSmallPlaybackBody playback={playback} />);
+        });
+
+        it("should render as expected", () => {
+            expect(renderResult.container).toMatchSnapshot();
+        });
+
+        describe("and clicking the play button", () => {
+            beforeEach(async () => {
+                await userEvent.click(renderResult.getByLabelText("play voice broadcast"));
+            });
+
+            it("should toggle the playback", () => {
+                expect(playback.toggle).toHaveBeenCalled();
+            });
+        });
+    });
+
+    describe.each([
+        { state: VoiceBroadcastPlaybackState.Paused, liveness: "not-live" },
+        { state: VoiceBroadcastPlaybackState.Playing, liveness: "live" },
+    ] as Array<{ state: VoiceBroadcastPlaybackState; liveness: VoiceBroadcastLiveness }>)(
+        "when rendering a %s/%s broadcast",
+        ({ state, liveness }) => {
+            beforeEach(() => {
+                mocked(playback.getState).mockReturnValue(state);
+                mocked(playback.getLiveness).mockReturnValue(liveness);
+                renderResult = render(<VoiceBroadcastSmallPlaybackBody playback={playback} />);
+            });
+
+            it("should render as expected", () => {
+                expect(renderResult.container).toMatchSnapshot();
+            });
+        },
+    );
+});