Add play/pause/mute/unmute Frigate card commands.

tests/utils/audio.test.ts

@@ -0,0 +1,36 @@
+import { describe, expect, it } from 'vitest';
+import { AudioProperties, mayHaveAudio } from '../../src/utils/audio';
+
+// @vitest-environment jsdom
+describe('mayHaveAudio', () => {
+  it('should detect audio when mozHasAudio true', () => {
+    const element: HTMLVideoElement & AudioProperties = document.createElement('video');
+    element.mozHasAudio = true;
+    expect(mayHaveAudio(element)).toBeTruthy();
+  });
+
+  it('should not detect audio when mozHasAudio undefined', () => {
+    const element: HTMLVideoElement & AudioProperties = document.createElement('video');
+    element.mozHasAudio = undefined;
+    expect(mayHaveAudio(element)).toBeFalsy();
+  });
+
+  it('should detect audio when audioTracks has length', () => {
+    // Workaround: "Cannot set property audioTracks of #<HTMLMediaElement> which has only a getter"
+    const element = {} as HTMLVideoElement & AudioProperties;
+    element.audioTracks = [1, 2, 3];
+    expect(mayHaveAudio(element)).toBeTruthy();
+  });
+
+  it('should not detect audio when audioTracks has no length', () => {
+    // Workaround: "Cannot set property audioTracks of #<HTMLMediaElement> which has only a getter"
+    const element = {} as HTMLVideoElement & AudioProperties;
+    element.audioTracks = [];
+    expect(mayHaveAudio(element)).toBeFalsy();
+  });
+
+  it('should detect audio when no evidence to the contrary', () => {
+    const element = {} as HTMLVideoElement & AudioProperties;
+    expect(mayHaveAudio(element)).toBeTruthy();
+  });
+});