mediasource-sourcebufferlist.html

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This WPT test may be referenced by the following Test IDs:
- /media-source/mediasource-sourcebufferlist.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<!-- Copyright © 2016 Chromium authors and World Wide Web Consortium, (Massachusetts Institute of Technology, ERCIM, Keio University, Beihang). -->

<html>

    <head>

        <title>SourceBufferList test cases.</title>

        <script src="/resources/testharness.js"></script>

        <script src="/resources/testharnessreport.js"></script>

        <script src="mediasource-util.js"></script>

    </head>

    <body>

        <div id="log"></div>

        <script>

          function verifySourceBufferLists(mediaSource, expected)

              assert_equals(mediaSource.sourceBuffers.length, expected.length, "sourceBuffers length");

              assert_equals(mediaSource.activeSourceBuffers.length, 0, "activeSourceBuffers length");

              for (var i = 0; i < expected.length; ++i) {

                assert_equals(mediaSource.sourceBuffers[i], expected[i], "Verifying mediaSource.sourceBuffers[" + i + "]");

              assert_equals(mediaSource.sourceBuffers[expected.length], undefined,

                "If index is greater than or equal to the length attribute then return undefined.");

          mediasource_test(function(test, mediaElement, mediaSource)

              var sourceBufferA = mediaSource.addSourceBuffer(MediaSourceUtil.VIDEO_ONLY_TYPE);

              verifySourceBufferLists(mediaSource, [sourceBufferA]);

              var sourceBufferB = mediaSource.addSourceBuffer(MediaSourceUtil.AUDIO_ONLY_TYPE);

              verifySourceBufferLists(mediaSource, [sourceBufferA, sourceBufferB]);

              test.done();

          }, "Test SourceBufferList getter method");

          mediasource_test(function(test, mediaElement, mediaSource)

              test.expectEvent(mediaSource.sourceBuffers, "addsourcebuffer", "sourceBuffers");

              var sourceBufferA = mediaSource.addSourceBuffer(MediaSourceUtil.VIDEO_ONLY_TYPE);

              var sourceBufferB = null;

              test.waitForExpectedEvents(function()

                  test.expectEvent(mediaSource.sourceBuffers, "addsourcebuffer", "sourceBuffers");

                  sourceBufferB = mediaSource.addSourceBuffer(MediaSourceUtil.AUDIO_ONLY_TYPE);

                  verifySourceBufferLists(mediaSource, [sourceBufferA, sourceBufferB]);

});

              test.waitForExpectedEvents(function()

                  test.expectEvent(mediaSource.sourceBuffers, "removesourcebuffer", "sourceBuffers");

                  mediaSource.removeSourceBuffer(sourceBufferA);

                  verifySourceBufferLists(mediaSource, [sourceBufferB]);

                  test.expectEvent(mediaSource.sourceBuffers, "addsourcebuffer", "sourceBuffers");

                  sourceBufferA = mediaSource.addSourceBuffer(MediaSourceUtil.VIDEO_ONLY_TYPE);

                  verifySourceBufferLists(mediaSource, [sourceBufferB, sourceBufferA]);

});

              test.waitForExpectedEvents(function()

                  test.done();

});

          }, "Test SourceBufferList event dispatching.");

          mediasource_test(function(test, mediaElement, mediaSource)

              test.expectEvent(mediaSource.sourceBuffers, "addsourcebuffer", "sourceBuffers");

              test.expectEvent(mediaSource.sourceBuffers, "addsourcebuffer", "sourceBuffers");

              var sourceBufferA = mediaSource.addSourceBuffer(MediaSourceUtil.VIDEO_ONLY_TYPE);

              var sourceBufferB = mediaSource.addSourceBuffer(MediaSourceUtil.AUDIO_ONLY_TYPE);

              verifySourceBufferLists(mediaSource, [sourceBufferA, sourceBufferB]);

              test.waitForExpectedEvents(function()

                  verifySourceBufferLists(mediaSource, [sourceBufferA, sourceBufferB]);

                  // Force the media element to close the MediaSource object.

                  test.expectEvent(mediaSource.sourceBuffers, "removesourcebuffer", "sourceBuffers");

                  test.expectEvent(mediaSource, "sourceclose", "mediaSource closing");

                  mediaElement.src = "";

});

              test.waitForExpectedEvents(function()

                  assert_equals(mediaSource.readyState, "closed", "mediaSource is closed.");

                  verifySourceBufferLists(mediaSource, []);

                  test.done();

});

          }, "Test that only 1 removesourcebuffer event fires on each SourceBufferList when the MediaSource closes.");

        </script>

    </body>

</html>