Bug 213896

Summary: [ macOS wk1 ] imported/w3c/web-platform-tests/css/css-flexbox/overflow-auto-008.html is flaky failing
Product: WebKit Reporter: Karl Rackler <rackler>
Component: Tools / TestsAssignee: Nobody <webkit-unassigned>
Status: REOPENED ---    
Severity: Normal CC: clopez, Lawrence.j, svillar, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch
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Description Karl Rackler 2020-07-02 12:34:51 PDT 
imported/w3c/web-platform-tests/css/css-flexbox/overflow-auto-008.html 

Description:
The test is flaky failing on [ macOS wk1 ] release.  It was passing consistently until 5/29/2020.

History: 
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-flexbox%2Foverflow-auto-008.html&flavor=wk1&platform=mac

Diff:  
--- /Volumes/Data/slave/catalina-debug-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/css/css-flexbox/overflow-auto-008-expected.txt
+++ /Volumes/Data/slave/catalina-debug-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/css/css-flexbox/overflow-auto-008-actual.txt
@@ -1,4 +1,4 @@
  
 
-PASS hbox dimensions 
+FAIL hbox dimensions assert_equals: expected 104 but got 89
Comment 1 Radar WebKit Bug Importer 2020-07-02 12:36:17 PDT 
<rdar://problem/65046136>
Comment 2 Karl Rackler 2020-07-02 13:07:04 PDT 
Created attachment 403391 [details]
Patch
Comment 3 EWS 2020-07-02 13:35:34 PDT 
Committed r263859: <https://trac.webkit.org/changeset/263859>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 403391 [details].
Comment 4 Karl Rackler 2020-07-02 14:58:04 PDT 
Reopening to attach new patch.
Comment 5 Karl Rackler 2020-07-02 14:58:05 PDT 
Created attachment 403400 [details]
Patch
Comment 6 EWS 2020-07-02 15:00:01 PDT 
Tools/Scripts/svn-apply failed to apply attachment 403400 [details] to trunk.
Please resolve the conflicts and upload a new patch.
Comment 7 Karl Rackler 2020-07-02 15:04:42 PDT 
I am able to reproduce this issue on 263855 using the commands below.

run-webkit-tests --iterations 500 --exit-after-n-failures 3 --force -f imported/w3c/web-platform-tests/css/css-flexbox/overflow-auto-008.html

r263855:
[22/500] imported/w3c/web-platform-tests/css/css-flexbox/overflow-auto-008.html failed unexpectedly (text diff)
[22/500] imported/w3c/web-platform-tests/css/css-flexbox/overflow-auto-008.html failed unexpectedly (text diff)
[22/500] imported/w3c/web-platform-tests/css/css-flexbox/overflow-auto-008.html failed unexpectedly (text diff)

6 tests ran as expected, 3 didn't (491 didn't run):
Comment 8 Karl Rackler 2020-07-02 15:10:48 PDT 
Created attachment 403403 [details]
Patch
Comment 9 EWS 2020-07-02 15:31:59 PDT 
Committed r263864: <https://trac.webkit.org/changeset/263864>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 403403 [details].
Comment 10 Alexey Proskuryakov 2020-07-02 15:47:02 PDT 
Re-opening, because this only updated expectations.

Looking at the complete history, I see failures all the way back to 5/19, which is when the test was imported. So it was imported flaky.