feat(sounds): add stream_watch data-channel protocol helpers

2026-04-28 14:19:41 +02:00
parent 40dd2ab52f
commit 6a4eac13a3
2 changed files with 71 additions and 0 deletions
@@ -0,0 +1,36 @@
+import { describe, it, expect } from 'vitest';
+import {
+  encodeStreamWatch,
+  parseStreamWatch,
+  isStreamWatchPayload,
+} from './streamWatchProtocol';
+
+describe('streamWatchProtocol', () => {
+  it('round-trips an encoded payload', () => {
+    const payload = { type: 'stream_watch' as const, target: 'user-1', watching: true };
+    const encoded = encodeStreamWatch(payload);
+    expect(encoded).toBeDefined();
+    expect(encoded.length).toBeGreaterThan(0);
+    const parsed = parseStreamWatch(encoded);
+    expect(parsed).toEqual(payload);
+  });
+
+  it('parseStreamWatch returns null on invalid JSON', () => {
+    const bad = new TextEncoder().encode('not json');
+    expect(parseStreamWatch(bad)).toBeNull();
+  });
+
+  it('parseStreamWatch returns null on wrong message type', () => {
+    const other = new TextEncoder().encode(JSON.stringify({ type: 'deafen', deafened: true }));
+    expect(parseStreamWatch(other)).toBeNull();
+  });
+
+  it('isStreamWatchPayload validates shape', () => {
+    expect(isStreamWatchPayload({ type: 'stream_watch', target: 'u', watching: true })).toBe(true);
+    expect(isStreamWatchPayload({ type: 'stream_watch', target: 'u', watching: 'yes' })).toBe(false);
+    expect(isStreamWatchPayload({ type: 'stream_watch', watching: true })).toBe(false);
+    expect(isStreamWatchPayload({ type: 'other', target: 'u', watching: true })).toBe(false);
+    expect(isStreamWatchPayload(null)).toBe(false);
+    expect(isStreamWatchPayload('string')).toBe(false);
+  });
+});