third_party/web_platform_tests/media-source/mediasource-appendwindow.html

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<html>
    <head>
        <title>SourceBuffer.appendWindowStart and SourceBuffer.appendWindowEnd 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>
          mediasource_test(function(test, mediaElement, mediaSource)
          {
              var sourceBuffer = mediaSource.addSourceBuffer(MediaSourceUtil.AUDIO_VIDEO_TYPE);
              assert_true(sourceBuffer != null, "New SourceBuffer returned");

              sourceBuffer.appendWindowStart = 100.0;
              sourceBuffer.appendWindowEnd = 500.0;
              assert_equals(sourceBuffer.appendWindowStart, 100.0, "appendWindowStart is correctly set'");
              assert_equals(sourceBuffer.appendWindowEnd, 500.0, "appendWindowEnd is correctly set'");

              sourceBuffer.appendWindowStart = 200.0;
              sourceBuffer.appendWindowEnd = 400.0;
              assert_equals(sourceBuffer.appendWindowStart, 200.0, "appendWindowStart is correctly reset'");
              assert_equals(sourceBuffer.appendWindowEnd, 400.0, "appendWindowEnd is correctly reset'");
              test.done();
          }, "Test correctly reset appendWindowStart and appendWindowEnd values");

          mediasource_test(function(test, mediaElement, mediaSource)
          {
              var sourceBuffer = mediaSource.addSourceBuffer(MediaSourceUtil.AUDIO_VIDEO_TYPE);
              assert_true(sourceBuffer != null, "New SourceBuffer returned");
              sourceBuffer.appendWindowEnd = 500.0;

              assert_throws(new TypeError(),
                  function() { sourceBuffer.appendWindowStart = Number.NEGATIVE_INFINITY; },
                  "set appendWindowStart throws an exception for Number.NEGATIVE_INFINITY.");

              assert_throws(new TypeError(),
                  function() { sourceBuffer.appendWindowStart = Number.POSITIVE_INFINITY; },
                  "set appendWindowStart throws an exception for Number.POSITIVE_INFINITY.");

              assert_throws(new TypeError(),
                  function() { sourceBuffer.appendWindowStart = Number.NaN; },
                  "set appendWindowStart throws an exception for Number.NaN.");

              assert_throws("InvalidAccessError",
                  function() { sourceBuffer.appendWindowStart = 600.0; },
                  "set appendWindowStart throws an exception when greater than appendWindowEnd.");

              assert_throws("InvalidAccessError",
                  function() { sourceBuffer.appendWindowStart = sourceBuffer.appendWindowEnd; },
                  "set appendWindowStart throws an exception when equal to appendWindowEnd.");

              assert_throws("InvalidAccessError",
                  function() { sourceBuffer.appendWindowEnd = sourceBuffer.appendWindowStart; },
                  "set appendWindowEnd throws an exception when equal to appendWindowStart.");

              assert_throws("InvalidAccessError",
                  function() { sourceBuffer.appendWindowEnd = sourceBuffer.appendWindowStart - 1; },
                  "set appendWindowEnd throws an exception if less than appendWindowStart.");

              assert_throws("InvalidAccessError",
                  function() { sourceBuffer.appendWindowStart = -100.0; },
                  "set appendWindowStart throws an exception when less than 0.");

              assert_throws("InvalidAccessError",
                  function() { sourceBuffer.appendWindowEnd = -100.0; },
                  "set appendWindowEnd throws an exception when less than 0.");

              assert_throws("InvalidAccessError",
                  function() { sourceBuffer.appendWindowEnd = Number.NaN; },
                  "set appendWindowEnd throws an exception if NaN.");

              assert_throws("InvalidAccessError",
                  function() { sourceBuffer.appendWindowEnd = undefined; },
                  "set appendWindowEnd throws an exception if undefined.");

              assert_throws({name: "TypeError"},
                  function() { sourceBuffer.appendWindowStart = undefined; },
                  "set appendWindowStart throws an exception if undefined.");

              test.done();
          }, "Test set wrong values to appendWindowStart and appendWindowEnd.");

          mediasource_test(function(test, mediaElement, mediaSource)
          {
              var sourceBuffer = mediaSource.addSourceBuffer(MediaSourceUtil.AUDIO_VIDEO_TYPE);
              assert_true(sourceBuffer != null, "New SourceBuffer returned");

              sourceBuffer.appendWindowStart = "";
              assert_true(sourceBuffer.appendWindowStart == 0, "appendWindowStart is 0");

              sourceBuffer.appendWindowStart = "10";
              assert_true(sourceBuffer.appendWindowStart == 10, "appendWindowStart is 10");

              sourceBuffer.appendWindowStart = null;
              assert_true(sourceBuffer.appendWindowStart == 0, "appendWindowStart is 0");

              sourceBuffer.appendWindowStart = true;
              assert_true(sourceBuffer.appendWindowStart == 1, "appendWindowStart is 1");

              sourceBuffer.appendWindowStart = false;
              assert_true(sourceBuffer.appendWindowStart == 0, "appendWindowStart is 0");

              sourceBuffer.appendWindowEnd = "100";
              assert_true(sourceBuffer.appendWindowEnd == 100, "appendWindowEnd is 100");

              test.done();

          }, "Test set correct values to appendWindowStart and appendWindowEnd.");

          mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
          {
              mediaSource.removeSourceBuffer(sourceBuffer);
              assert_throws("InvalidStateError",
                  function() { sourceBuffer.appendWindowStart = 100.0; },
                  "set appendWindowStart throws an exception when mediasource object is not associated with a buffer.");

              assert_throws("InvalidStateError",
                  function() { sourceBuffer.appendWindowEnd = 500.0; },
                  "set appendWindowEnd throws an exception when mediasource object is not associated with a buffer.");
              test.done();

          }, "Test appendwindow throw error when mediasource object is not associated with a sourebuffer.");

          mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
          {
              test.expectEvent(sourceBuffer, "updateend", "sourceBuffer");
              sourceBuffer.appendBuffer(mediaData);
              assert_true(sourceBuffer.updating, "updating attribute is true");

              assert_throws("InvalidStateError",
                  function() { sourceBuffer.appendWindowStart = 100.0; },
                  "set appendWindowStart throws an exception when there is a pending append.");

              assert_throws("InvalidStateError",
                  function() { sourceBuffer.appendWindowEnd = 500.0; },
                  "set appendWindowEnd throws an exception when there is a pending append.");

              test.waitForExpectedEvents(function()
              {
                  assert_false(sourceBuffer.updating, "updating attribute is false");
                  test.done();
              });
          }, "Test set appendWindowStart and appendWindowEnd when source buffer updating.");

          mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
          {
              test.expectEvent(sourceBuffer, "updateend", "sourceBuffer");
              sourceBuffer.appendBuffer(mediaData);
              assert_true(sourceBuffer.updating, "updating attribute is true");

              sourceBuffer.abort();
              assert_equals(sourceBuffer.appendWindowStart, 0, "appendWindowStart is 0 after an abort'");
              assert_equals(sourceBuffer.appendWindowEnd, Number.POSITIVE_INFINITY,
                            "appendWindowStart is POSITIVE_INFINITY after an abort");
              test.waitForExpectedEvents(function()
              {
                  assert_false(sourceBuffer.updating, "updating attribute is false");
                  test.done();
              });
          }, "Test appendWindowStart and appendWindowEnd value after a sourceBuffer.abort().");

          mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
          {
               assert_equals(sourceBuffer.appendWindowStart, 0, "appendWindowStart is 0 initially");
               assert_equals(sourceBuffer.appendWindowEnd, Number.POSITIVE_INFINITY,
                            "appendWindowStart is POSITIVE_INFINITY initially");
               test.done();
          }, "Test read appendWindowStart and appendWindowEnd initial values.");

       </script>
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