Bug 187522

Summary: [ MacOS Debug ] Layout Test media/media-fragments/TC0015.html is flaky
Product: WebKit Reporter: Truitt Savell <tsavell>
Component: Tools / TestsAssignee: Nobody <webkit-unassigned>
Status: RESOLVED DUPLICATE    
Severity: Normal CC: lforschler, realdawei, ryanhaddad
Priority: P2    
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
See Also: https://bugs.webkit.org/show_bug.cgi?id=187557
https://bugs.webkit.org/show_bug.cgi?id=132248
Attachments:
Description Flags
Patch
none
Mark as flaky none

Description Truitt Savell 2018-07-10 08:58:50 PDT 
The following layout test is flaky on MacOS Debug 

media/media-fragments/TC0015.html

Probable cause:

I do not know
Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=media%2Fmedia-fragments%2FTC0015.html

Test seems to have been flakey for a while on Debug builds.
Comment 1 Truitt Savell 2018-07-10 09:06:45 PDT 
Created attachment 344700 [details]
Patch
Comment 2 Truitt Savell 2018-07-10 09:14:51 PDT 
Created attachment 344702 [details]
Mark as flaky
Comment 3 Ryan Haddad 2018-07-10 09:24:45 PDT 
Comment on attachment 344702 [details]
Mark as flaky

Clearing flags on attachment: 344702

Committed r233683: <https://trac.webkit.org/changeset/233683>
Comment 4 Truitt Savell 2018-07-11 10:08:17 PDT 
Text Diff example:

--- /Volumes/Data/slave/sierra-debug-tests-wk1/build/layout-test-results/media/media-fragments/TC0037-expected.txt
+++ /Volumes/Data/slave/sierra-debug-tests-wk1/build/layout-test-results/media/media-fragments/TC0037-actual.txt
@@ -7,6 +7,6 @@
 EXPECTED (video.currentTime == '3') OK
 RUN(video.play())
 EVENT(pause)
-EXPECTED (video.currentTime - fragmentEndTime <= '0.5') OK
+EXPECTED (video.currentTime - fragmentEndTime <= '0.5'), OBSERVED '0.54' FAIL
 END OF TEST
 

I saw variance in the OBSERVED '0.54' FAIL from 0.54-0.66
Comment 5 Truitt Savell 2018-07-13 14:29:43 PDT 

*** This bug has been marked as a duplicate of bug 187557 ***