NEW 206752
[iOS wk2 release and Mac] imported/w3c/web-platform-tests/2dcontext/imagebitmap/createImageBitmap-serializable.html flaky failure 
https://bugs.webkit.org/show_bug.cgi?id=206752
Summary [iOS wk2 release and Mac] imported/w3c/web-platform-tests/2dcontext/imagebitm...
Jason Lawrence
Reported 2020-01-24 09:12:52 PST
imported/w3c/web-platform-tests/2dcontext/imagebitmap/createImageBitmap-serializable.html Description: This test is flaky failing in iOS wk2 release and Mac. History: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2F2dcontext%2Fimagebitmap%2FcreateImageBitmap-serializable.html Diff: --- /Volumes/Data/slave/catalina-debug-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/2dcontext/imagebitmap/createImageBitmap-serializable-expected.txt +++ /Volumes/Data/slave/catalina-debug-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/2dcontext/imagebitmap/createImageBitmap-serializable-actual.txt @@ -1,4 +1,3 @@ -CONSOLE MESSAGE: line 2: TypeError: Type error PASS Serialize ImageBitmap created from an HTMLCanvasElement PASS Serialize ImageBitmap created from an HTMLVideoElement
Attachments
Update Test Expectations (2.44 KB, patch)
2020-01-28 10:46 PST, Jason Lawrence 		no flags
DetailsFormatted DiffDiff
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2020-01-24 09:13:16 PST
<rdar://problem/58869582>
Jason Lawrence
Comment 2 2020-01-24 10:57:50 PST
This looks like it may have regressed around 254399.
Darin Adler
Comment 3 2020-01-25 08:11:01 PST
r254399 is when a new version of this test and its expected result was first landed, so there’s no reason to think this became more flaky because of a software change. It’s just that the new part of the test is flaky. And what seems flaky is the question of whether a type error is logged to the console. I wish I knew more about where the type error was coming from, even which JavaScript source file.
Jason Lawrence
Comment 4 2020-01-28 10:46:27 PST
Created attachment 389031 [details] Update Test Expectations
Truitt Savell
Comment 5 2020-01-28 10:48:47 PST
Comment on attachment 389031 [details] Update Test Expectations Clearing flags on attachment: 389031 Committed r255259: <https://trac.webkit.org/changeset/255259>
Jason Lawrence
Comment 6 2020-02-13 09:58:53 PST
I am able to reproduce this issue with r256503 using the command below. run-webkit-tests imported/w3c/web-platform-tests/2dcontext/imagebitmap/createImageBitmap-serializable.html --iterations 3000 --exit-after-n-failures 5 --force -f 18/3000] imported/w3c/web-platform-tests/2dcontext/imagebitmap/createImageBitmap-serializable.html failed unexpectedly (text diff) [24/3000] imported/w3c/web-platform-tests/2dcontext/imagebitmap/createImageBitmap-serializable.html failed unexpectedly (text diff) [26/3000] imported/w3c/web-platform-tests/2dcontext/imagebitmap/createImageBitmap-serializable.html failed unexpectedly (text diff) [27/3000] imported/w3c/web-platform-tests/2dcontext/imagebitmap/createImageBitmap-serializable.html failed unexpectedly (text diff) [32/3000] imported/w3c/web-platform-tests/2dcontext/imagebitmap/createImageBitmap-serializable.html failed unexpectedly (text diff) Exiting early after 5 failures. 27 tests run. 22 tests ran as expected, 5 didn't (2973 didn't run):
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