209072 2020-03-13 11:53:31 -0700 [ Mac Debug ] http/tests/css/shared-stylesheet-mutation-preconstruct.html is flaky failing. 2020-03-23 15:51:54 -0700 1 1 1 Unclassified WebKit CSS WebKit Nightly Build Mac macOS 10.14 NEW InRadar P2 Normal --- 1 Lawrence.j webkit-unassigned webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 1629746 0 Lawrence.j 2020-03-13 11:53:31 -0700 http/tests/css/shared-stylesheet-mutation-preconstruct.html Description: This test is flaky failing on Mac Debug. It is flaky failing throughout the visible history shown in the link below. History: https://results.webkit.org/?suite=layout-tests&test=http%2Ftests%2Fcss%2Fshared-stylesheet-mutation-preconstruct.html&platform=mac&style=debug&flavor=wk2&flavor=wk1&limit=50000 Diff: --- /Volumes/Data/slave/mojave-debug-tests-wk1/build/layout-test-results/http/tests/css/shared-stylesheet-mutation-preconstruct-expected.txt +++ /Volumes/Data/slave/mojave-debug-tests-wk1/build/layout-test-results/http/tests/css/shared-stylesheet-mutation-preconstruct-actual.txt @@ -175,7 +175,7 @@ Test 12 -------------------------------------- -PASS getComputedStyle(testElement, null).getPropertyValue('background-color') is 'rgb(0, 128, 0)' +FAIL getComputedStyle(testElement, null).getPropertyValue('background-color') should be rgb(0, 128, 0). Was rgba(0, 0, 0, 0). @import url("data:text/css;charset=utf-8,%23testdiv%7Bbackground-color%3Agreen%20!important%7D"); #testdiv { background-color: green; } 1629747 1 webkit-bug-importer 2020-03-13 11:54:06 -0700 <rdar://problem/60427174> 1629754 2 Lawrence.j 2020-03-13 11:58:28 -0700 I have marked this test as failing while this issue is investigated. https://trac.webkit.org/changeset/258417/webkit 1629788 3 Lawrence.j 2020-03-13 12:57:53 -0700 I am able to reproduce this issue with r258414 using the command below. run-webkit-tests --iterations 1000 --exit-after-n-failures 3 --force -f --debug http/tests/css/shared-stylesheet-mutation-preconstruct.html [39/1000] http/tests/css/shared-stylesheet-mutation-preconstruct.html failed unexpectedly (text diff) [65/1000] http/tests/css/shared-stylesheet-mutation-preconstruct.html failed unexpectedly (text diff) [238/1000] http/tests/css/shared-stylesheet-mutation-preconstruct.html failed unexpectedly (text diff) Exiting early after 3 failures. 235 tests run. 232 tests ran as expected, 3 didn't (765 didn't run): 1633085 4 Lawrence.j 2020-03-23 15:51:54 -0700 *** Bug 209442 has been marked as a duplicate of this bug. ***