<!doctype html>
<meta charset="utf-8">
<html>
<title>MediaRecorder destroy script execution context</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<iframe src="support/MediaRecorder-iframe.html" id="subFrame-start" name="subFrameStart"></iframe>
<iframe src="support/MediaRecorder-iframe.html" id="subFrame-stop" name="subFrameStop"></iframe>
<iframe src="support/MediaRecorder-iframe.html" id="subFrame-allTrackEnded" name="subFrameAllTrackEnded"></iframe>
<iframe src="support/MediaRecorder-iframe.html" id="subFrame-audioBitrateMode" name="subFrameAudioBitrateMode"></iframe>
<script>
    var iframeForCallingStart = document.getElementById('subFrame-start');
    var iframeForCallingStop = document.getElementById('subFrame-stop');
    var iframeForAllTrackEnded = document.getElementById('subFrame-allTrackEnded');
    var iframeForAudioBitrateMode = document.getElementById('subFrame-audioBitrateMode');

    var testForCallingStart = async_test('MediaRecorder will throw when start() is called and the script execution context is going away');
    var testForCallingStop = async_test('MediaRecorder will not fire the stop event when stop() is called and the script execution context is going away');
    var testForAllTrackEnded = async_test('MediaRecorder will not fire the stop event when all tracks are ended and the script execution context is going away');
    var testForAudioBitrateMode = async_test('MediaRecorder will not crash on accessing audioBitrateMode when the script execution context is going away');


    iframeForCallingStart.onload = function(e) {
      let testWindow = subFrameStart.window;
      testWindow.prepareForTest(testForCallingStart);
      let exceptionCtor = testWindow.DOMException;
      const recorder = subFrameStart.window.recorder;
      iframeForCallingStart.remove();
      testForCallingStart.step(function() {
        assert_throws_dom('NotSupportedError', exceptionCtor, () => recorder.start(),
                         "MediaRecorder.start() should throw");
      });;
      testForCallingStart.done();
    };

    iframeForCallingStop.onload = function(e) {
        subFrameStop.window.prepareForTest(testForCallingStop);
        const recorder = subFrameStop.window.recorder;
        recorder.ondataavailable = testForCallingStop.step_func(blobEvent => {
            iframeForCallingStop.remove();
            testForCallingStop.step_timeout(testForCallingStop.step_func_done(), 0);
        });
        recorder.onstop = testForCallingStop.unreached_func('Unexpected stop event');
        recorder.start();
        testForCallingStop.step(function() {
          assert_equals(recorder.state, 'recording', 'MediaRecorder has been started successfully');
        });
        subFrameStop.window.control.addVideoFrame();
        recorder.stop();
    };

    iframeForAllTrackEnded.onload = function(e) {
        subFrameAllTrackEnded.window.prepareForTest(testForAllTrackEnded);
        const recorder = subFrameAllTrackEnded.window.recorder;
        recorder.ondataavailable = testForAllTrackEnded.step_func(blobEvent => {
            iframeForAllTrackEnded.remove();
            testForAllTrackEnded.step_timeout(testForAllTrackEnded.step_func_done(), 0);
        });
        recorder.onstop = testForAllTrackEnded.unreached_func('Unexpected stop event');
        recorder.start();
        testForAllTrackEnded.step(function() {
          assert_equals(recorder.state, 'recording', 'MediaRecorder has been started successfully');
        });
        subFrameAllTrackEnded.window.control.addVideoFrame();
        subFrameAllTrackEnded.window.video.getVideoTracks()[0].stop();
    };

    iframeForAudioBitrateMode.onload = testForAudioBitrateMode.step_func(function(e) {
        subFrameAudioBitrateMode.window.prepareForTest(testForAudioBitrateMode);
        const recorder = subFrameAudioBitrateMode.window.recorder;
        iframeForAudioBitrateMode.remove();
        recorder.audioBitrateMode;
        testForAudioBitrateMode.done();
    });

</script>
</body>
</html>
