LayoutTests/http/tests/media/media-source/mediasource-errors.html - Issue 742653002: MSE: Add layout test for 'decode' error via an algorithm

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Issue 742653002: MSE: Add layout test for 'decode' error via an algorithm (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Created 6 years, 1 month ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

2 <html>	2 <html>

3 <head>	3 <head>

4 <script src="/w3c/resources/testharness.js"></script>	4 <script src="/w3c/resources/testharness.js"></script>

5 <script src="/w3c/resources/testharnessreport.js"></script>	5 <script src="/w3c/resources/testharnessreport.js"></script>

6 <script src="mediasource-util.js"></script>	6 <script src="mediasource-util.js"></script>

7 <link rel='stylesheet' href='/w3c/resources/testharness.css'>	7 <link rel='stylesheet' href='/w3c/resources/testharness.css'>

8 </head>	8 </head>

9 <body>	9 <body>

10 <div id="log"></div>	10 <div id="log"></div>

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136 });	136 });

137	137

138 test.waitForExpectedEvents(function()	138 test.waitForExpectedEvents(function()

139 {	139 {

140 assert_true(mediaElement.error != null);	140 assert_true(mediaElement.error != null);

141 assert_equals(mediaElement.error.code, MediaError.MEDIA_ERR_ NETWORK);	141 assert_equals(mediaElement.error.code, MediaError.MEDIA_ERR_ NETWORK);

142 assert_equals(mediaSource.readyState, "ended");	142 assert_equals(mediaSource.readyState, "ended");

143 test.done();	143 test.done();

144 });	144 });

145 }, "Signaling 'network' error via endOfStream() after initialization segment has been appended and the HTMLMediaElement has reached HAVE_METADATA.") ;	145 }, "Signaling 'network' error via endOfStream() after initialization segment has been appended and the HTMLMediaElement has reached HAVE_METADATA.") ;

	146

	147 ErrorTest(function(test, mediaElement, mediaSource, segmentInfo, sou rceBuffer, mediaData)

	148 {

	149 assert_equals(mediaElement.readyState, HTMLMediaElement.HAVE_NOT HING);

	150

	151 var initSegment = MediaSourceUtil.extractSegmentData(mediaData, segmentInfo.init);

	152 var mediaSegment = MediaSourceUtil.extractSegmentData(mediaData, segmentInfo.media[0]);

	153 var index = (mediaSegment.length + 1) / 5;
	philipj_slow 2014/11/19 10:08:35 This and the follow line looks a bit odd, like som This and the follow line looks a bit odd, like some finely tuned constants that need to be documented. I think this is trying to create a buffer that includes an init segment followed by some corrupt data, right? It looks like mediaData is already the concatenation of init segment and media data, so why not just overwrite some of the media data to make it corrupt? I haven't looked at many MSE test cases before, so I could just be ignorant about how things work. jiajia.qin 2014/11/19 11:57:57 Yes. I am trying to create a buffer that includes Show quoted text On 2014/11/19 10:08:35, philipj wrote: > This and the follow line looks a bit odd, like some finely tuned constants that > need to be documented. I think this is trying to create a buffer that includes > an init segment followed by some corrupt data, right? Yes. I am trying to create a buffer that includes an int segment, partial media segment(the first 1/5 data is right, but remaining is corrupt data) Show quoted text > It looks like mediaData is > already the concatenation of init segment and media data, so why not just > overwrite some of the media data to make it corrupt? I can overwrite some of the media data. But I don't know what kind of data I should use. Can I just overwrite it using arbitrary number ? Show quoted text > I haven't looked at many > MSE test cases before, so I could just be ignorant about how things work. The test cases before are explicitly calling mediaSource.endofstream() to trigger the end of stream algorithm. This test case is triggered by an algorithm which needs to signal a decode error. ( https://w3c.github.io/media-source/#end-of-stream-algorithm )
	154 var partialMediaSegment = mediaSegment.subarray(index * 2);

	155 mediaData.set(partialMediaSegment, initSegment.length + index);

	156

	157 test.expectEvent(mediaElement, "error", "mediaElement error.");

	158 sourceBuffer.appendBuffer(mediaData);

	159

	160 test.waitForExpectedEvents(function()

	161 {

	162 assert_equals(mediaElement.readyState, HTMLMediaElement.HAVE _METADATA);

	163 assert_true(mediaElement.error != null);

	164 assert_equals(mediaElement.error.code, MediaError.MEDIA_ERR_ DECODE);

	165 test.done();

	166 });

	167 }, "Signaling 'decode' error via segment parser loop algorithm after initialization segment and partial media segment has been appended.");

146 </script>	168 </script>

147 </body>	169 </body>

148 </html>	170 </html>

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