【m】修改为服务器录屏

test/recording-agent.test.ts

@@ -0,0 +1,114 @@
+import {
+  incrementRecordingTrackPackets,
+  registerRecordingPeerCandidate,
+  registerRecordingPeerOffer,
+  registerRecordingPeerTrack,
+  resetRecordingAgents,
+  startRecordingAgent,
+  stopRecordingAgent
+} from '../src/recording/agent';
+import { RecordingSession } from '../src/recording/session-manager';
+
+const session: RecordingSession = {
+  id: 'recording-1',
+  connectionId: 'room-1',
+  status: 'recording',
+  layout: 'grid',
+  format: 'webm',
+  createdAt: '2026-06-01T00:00:00.000Z',
+  startedAt: '2026-06-01T00:00:00.000Z',
+  updatedAt: '2026-06-01T00:00:00.000Z'
+};
+
+describe('recording agent', () => {
+  beforeEach(() => {
+    resetRecordingAgents();
+  });
+
+  test('starts an awaiting media adapter agent', () => {
+    const agent = startRecordingAgent(session);
+
+    expect(agent).toEqual(expect.objectContaining({
+      id: 'recorder_recording-1',
+      recordingId: 'recording-1',
+      connectionId: 'room-1',
+      status: 'awaiting-media-adapter',
+      mediaMode: 'webrtc-sendonly'
+    }));
+  });
+
+  test('stores peer offers for an active agent', () => {
+    startRecordingAgent(session);
+    const offer = registerRecordingPeerOffer({
+      recordingId: 'recording-1',
+      connectionId: 'room-1',
+      participantId: 'participant-1',
+      sdp: 'test-sdp'
+    });
+
+    expect(offer).toEqual(expect.objectContaining({
+      recordingId: 'recording-1',
+      connectionId: 'room-1',
+      participantId: 'participant-1',
+      sdp: 'test-sdp'
+    }));
+  });
+
+  test('stores peer candidates for an active agent', () => {
+    const agent = startRecordingAgent(session);
+    const candidate = registerRecordingPeerCandidate({
+      recordingId: 'recording-1',
+      connectionId: 'room-1',
+      participantId: 'participant-1',
+      candidate: 'candidate:1',
+      sdpMid: '0',
+      sdpMLineIndex: 0
+    });
+
+    expect(candidate).toEqual(expect.objectContaining({
+      recordingId: 'recording-1',
+      connectionId: 'room-1',
+      participantId: 'participant-1',
+      candidate: 'candidate:1'
+    }));
+    expect(agent.peerCandidates.get('participant-1')).toEqual([candidate]);
+  });
+
+  test('tracks received media and packet counts', () => {
+    const agent = startRecordingAgent(session);
+    const track = registerRecordingPeerTrack({
+      recordingId: 'recording-1',
+      connectionId: 'room-1',
+      participantId: 'participant-1',
+      kind: 'video',
+      trackId: 'track-1'
+    });
+
+    incrementRecordingTrackPackets({
+      recordingId: 'recording-1',
+      participantId: 'participant-1',
+      trackId: 'track-1'
+    });
+
+    expect(agent.status).toBe('receiving-media');
+    expect(track).toEqual(expect.objectContaining({
+      recordingId: 'recording-1',
+      participantId: 'participant-1',
+      kind: 'video',
+      trackId: 'track-1',
+      rtpPackets: 1
+    }));
+  });
+
+  test('rejects offers when the agent is stopped', () => {
+    startRecordingAgent(session);
+    stopRecordingAgent('recording-1');
+
+    expect(registerRecordingPeerOffer({
+      recordingId: 'recording-1',
+      connectionId: 'room-1',
+      participantId: 'participant-1',
+      sdp: 'test-sdp'
+    })).toBeNull();
+  });
+});