Merge pull request #13602 from youennf/mediarecorder-error

WPT test for w3c/mediacapture-record#152
web-platform-tests · Nov 4, 2018 · 9864ae7 · 9864ae7
2 parents 6e9693d + 32455da
commit 9864ae7
Showing 1 changed file with 75 additions and 0 deletions.
diff --git a/mediacapture-record/MediaRecorder-error.html b/mediacapture-record/MediaRecorder-error.html
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+<!doctype html>
+<html>
+<head>
+    <title>MediaRecorder Error</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>
+</head>
+<body>
+<canvas id="canvas" width="320" height="320">
+</canvas>
+<script>
+    function createAudioStream() {
+        let ac = new AudioContext();
+        let osc = ac.createOscillator();
+        let dest = ac.createMediaStreamDestination();
+        osc.connect(dest);
+        return dest.stream;
+    }
+
+    function createVideoStream() {
+        let canvas = document.getElementById("canvas");
+        canvas.getContext('2d').lineTo(10, 10);
+        return canvas.captureStream();
+    }
+
+    async_test(t => {
+        let video = createVideoStream();
+        let audio = createAudioStream();
+        let recorder = new MediaRecorder(video);
+        recorder.onerror = t.step_func(mediaRecorderErrorEvent => {
+            assert_true(mediaRecorderErrorEvent instanceof MediaRecorderErrorEvent, 'the type of event should be MediaRecorderErrorEvent');
+            assert_equals(mediaRecorderErrorEvent.error.name, 'UnknownError', 'the type of error should be UnknownError when track has been added or removed');
+            assert_true(mediaRecorderErrorEvent.isTrusted, 'isTrusted should be true when the event is created by C++');
+            assert_equals(recorder.state, "inactive", "MediaRecorder has been stopped after adding a track to stream");
+            t.done();
+        });
+        recorder.start();
+        assert_equals(recorder.state, "recording", "MediaRecorder has been started successfully");
+        video.addTrack(audio.getAudioTracks()[0]);
+        t.step_timeout(() => {
+            assert_unreached("error event is not fired after 2 seconds");
+        }, 2000);
+    }, "MediaRecorder will stop recording when any of track is added and error event will be fired");
+
+    async_test(t => {
+        let video = createVideoStream();
+        let recorder = new MediaRecorder(video);
+        recorder.onerror = t.step_func(mediaRecorderErrorEvent => {
+            assert_true(mediaRecorderErrorEvent instanceof MediaRecorderErrorEvent, 'the type of event should be MediaRecorderErrorEvent');
+            assert_equals(mediaRecorderErrorEvent.error.name, 'UnknownError', 'the type of error should be UnknownError when track has been added or removed');
+            assert_true(mediaRecorderErrorEvent.isTrusted, 'isTrusted should be true when the event is created by C++');
+            assert_equals(recorder.state, "inactive", "MediaRecorder has been stopped after removing a track from stream");
+            t.done();
+        });
+        recorder.start();
+        assert_equals(recorder.state, "recording", "MediaRecorder has been started successfully");
+        video.removeTrack(video.getVideoTracks()[0]);
+        t.step_timeout(() => {
+            assert_unreached("error event is not fired after 2 seconds");
+        }, 2000);
+    }, "MediaRecorder will stop recording when any of track is removed and error event will be fired");
+
+    test(t => {
+        let video = createVideoStream();
+        let recorder = new MediaRecorder(video);
+        recorder.start();
+        assert_equals(recorder.state, "recording", "MediaRecorder has been started successfully");
+        assert_throws("InvalidStateError", function() {
+            recorder.start();
+        });
+    }, "MediaRecorder cannot start recording when MediaRecorder' state is not inactive and an InvalidStateError should be thrown");
+</script>
+</body>
+</html>