Adding more MSE tests.

LayoutTests/http/tests/media/media-source/mediasource-closed.html

Index: LayoutTests/http/tests/media/media-source/mediasource-closed.html
diff --git a/LayoutTests/http/tests/media/media-source/mediasource-closed.html b/LayoutTests/http/tests/media/media-source/mediasource-closed.html
index b70b439d62932d3e5e7b7e6835fa6e1692083b10..f84c0df3df39c096f7098665bf35fedff18289b2 100644
--- a/LayoutTests/http/tests/media/media-source/mediasource-closed.html
+++ b/LayoutTests/http/tests/media/media-source/mediasource-closed.html
@@ -115,6 +115,26 @@
               // Trigger the MediaSource to close.
               mediaElement.src = "";
           }, "Test getting duration while open->closed.");
+          
+          mediasource_test(function(test, mediaElement, mediaSource)
+          {
+              var sourceBuffer = mediaSource.addSourceBuffer(MediaSourceUtil.AUDIO_ONLY_TYPE);
+              
+              assert_equals(mediaSource.readyState, "open", "readyState is 'open'");

[wolenetz, 2014/07/26 00:07:15]

nit: eek! ditto (" vs ')

[prabhur1, 2014/07/28 21:36:49]

Done.

+              
+              // Setup a handler to run when the MediaSource closes.
+              mediaSource.addEventListener('sourceclose', test.step_func(function (event)
+              {
+                  assert_equals(mediaSource.readyState, "closed", "readyState is 'closed'");
+                  assert_throws("InvalidStateError",
+                    function() { sourceBuffer.abort(); }, 
+                    "sourceBuffer.abort() throws INVALID_STATE_ERROR");                  

[wolenetz, 2014/07/26 00:07:16]

nit: remove any trailing whitespace here

[prabhur1, 2014/07/28 21:36:49]

Done.

+                  test.done();
+              }));
+
+              // Trigger the MediaSource to close.
+              mediaElement.src = "";
+          }, "Test sourcebuffer.abort when closed.");
         </script>
     </body>
 </html>