Bug 170203 – LayoutTest fast/images/animated-image-different-dest-size.html is a flaky failure

• Component: Tools / Tests
• Status: RESOLVED FIXED

[Ryan Haddad]

LayoutTest fast/images/animated-image-different-dest-size.html is a flaky failure

https://build.webkit.org/results/Apple%20Sierra%20Release%20WK2%20(Tests)/r214487%20(231)/results.html

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=fast%2Fimages%2Fanimated-image-different-dest-size.html

The image diff shows the two rightmost squares are green, but the expected color is blue.

[Ryan Haddad]

This test was just added with http://trac.webkit.org/changeset/214450

[Alexey Proskuryakov]

Flaky on Mac WK2 bots.

We should have rolled back the change, but it's probably too late now. Marked as flaky in http://trac.webkit.org/r214673

[Alexey Proskuryakov]

rdar://problem/31373038

[Alexey Proskuryakov]

Corrected TestExpectations entry in http://trac.webkit.org/r214675 (forgot that image failures need to be marked as ImageOnlyFailure).

[Said Abou-Hallawa]

Created attachment 312253 [details]
Patch

[Said Abou-Hallawa]

Created attachment 312307 [details]
Patch

[Said Abou-Hallawa]

I verified the fix by removing the test form TestExpectations and running the command:

run-webkit-tests --debug --repeat-each=200 LayoutTests/fast/images/animated-image-different-dest-size.html -gf --child-processes=10

[Simon Fraser (smfr)]

Comment on attachment 312307 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=312307&action=review

> LayoutTests/fast/images/animated-image-different-dest-size.html:50
> +        function loadImage(element, src, canvasIds, frameCount) {
>              return new Promise((resolve) => {
>                  let image = new Image;
>                  image.onload = (() => {

Now you have an image and an image element. That doesn't make much sense.

[Said Abou-Hallawa]

Created attachment 312363 [details]
Patch

[Said Abou-Hallawa]

Created attachment 312364 [details]
Patch

[Build Bot]

Comment on attachment 312364 [details]
Patch

Attachment 312364 [details] did not pass ios-sim-ews (ios-simulator-wk2):
Output: http://webkit-queues.webkit.org/results/3897035

New failing tests:
svg/animations/svglength-element-removed-crash.svg

[Build Bot]

Created attachment 312371 [details]
Archive of layout-test-results from ews125 for ios-simulator-wk2

The attached test failures were seen while running run-webkit-tests on the ios-sim-ews.
Bot: ews125  Port: ios-simulator-wk2  Platform: Mac OS X 10.12.5

[Said Abou-Hallawa]

Created attachment 312473 [details]
Patch

[Said Abou-Hallawa]

Comment on attachment 312371 [details]
Archive of layout-test-results from ews125 for ios-simulator-wk2

The iOS-sim bot failed because svg/animations/svglength-element-removed-crash.svg is flaky. It confuses the EWS by failing consistently with the attached patch and pass without it although it should not have any effect on the result of this test.

[WebKit Commit Bot]

Comment on attachment 312473 [details]
Patch

Clearing flags on attachment: 312473

Committed r218019: <http://trac.webkit.org/changeset/218019>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.