| <!doctype html> |
| <html> |
| <head> |
| <title>MediaRecorder Pause and Resume</title> |
| <link rel="help" href="https://w3c.github.io/mediacapture-record/MediaRecorder.html#mediarecorder"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="utils/sources.js"></script> |
| </head> |
| <body> |
| <script> |
| function recordEvents(target, events) { |
| let arr = []; |
| for (let ev of events) { |
| target.addEventListener(ev, _ => arr.push(ev)); |
| } |
| return arr; |
| } |
| |
| promise_test(async t => { |
| const {stream: video, control} = createVideoStream(t); |
| control.addVideoFrame(); |
| const recorder = new MediaRecorder(video); |
| const events = recordEvents(recorder, |
| ["start", "stop", "dataavailable", "pause", "resume", "error"]); |
| |
| recorder.start(); |
| assert_equals(recorder.state, "recording", "MediaRecorder has been started successfully"); |
| await new Promise(r => recorder.onstart = r); |
| |
| recorder.pause(); |
| assert_equals(recorder.state, "paused", "MediaRecorder should be paused immediately following pause()"); |
| |
| // A second call to pause should be idempotent |
| recorder.pause(); |
| assert_equals(recorder.state, "paused", "MediaRecorder should be paused immediately following pause()"); |
| |
| let event = await new Promise(r => recorder.onpause = r); |
| assert_equals(event.type, "pause", "the event type should be pause"); |
| assert_true(event.isTrusted, "isTrusted should be true when the event is created by C++"); |
| |
| recorder.resume(); |
| assert_equals(recorder.state, "recording", "MediaRecorder state should be recording immediately following resume() call"); |
| |
| // A second call to resume should be idempotent |
| recorder.resume(); |
| assert_equals(recorder.state, "recording", "MediaRecorder state should be recording immediately following resume() call"); |
| |
| event = await new Promise(r => recorder.onresume = r); |
| assert_equals(event.type, "resume", "the event type should be resume"); |
| assert_true(event.isTrusted, "isTrusted should be true when the event is created by C++"); |
| |
| recorder.stop(); |
| await new Promise(r => recorder.onstop = r); |
| |
| assert_array_equals(events, ["start", "pause", "resume", "dataavailable", "stop"], |
| "Should have gotten expected events"); |
| }, "MediaRecorder handles pause() and resume() calls appropriately in state and events"); |
| |
| promise_test(async () => { |
| let video = createVideoStream(); |
| let recorder = new MediaRecorder(video); |
| let events = recordEvents(recorder, |
| ["start", "stop", "dataavailable", "pause", "resume", "error"]); |
| |
| recorder.start(); |
| assert_equals(recorder.state, "recording", "MediaRecorder has been started successfully"); |
| await new Promise(r => recorder.onstart = r); |
| |
| recorder.pause(); |
| assert_equals(recorder.state, "paused", "MediaRecorder should be paused immediately following pause()"); |
| let event = await new Promise(r => recorder.onpause = r); |
| assert_equals(event.type, "pause", "the event type should be pause"); |
| assert_true(event.isTrusted, "isTrusted should be true when the event is created by C++"); |
| |
| recorder.stop(); |
| assert_equals(recorder.state, "inactive", "MediaRecorder should be inactive after being stopped"); |
| await new Promise(r => recorder.onstop = r); |
| |
| recorder.start(); |
| assert_equals(recorder.state, "recording", "MediaRecorder has been started successfully"); |
| await new Promise(r => recorder.onstart = r); |
| |
| assert_array_equals(events, ["start", "pause", "dataavailable", "stop", "start"], |
| "Should have gotten expected events"); |
| }, "MediaRecorder handles stop() in paused state appropriately"); |
| </script> |
| </body> |
| </html> |
