[Webkit-unassigned] [Bug 216292] New: [ macOS wk2 Release ] imported/w3c/web-platform-tests/css/css-flexbox/quirks-auto-block-size-with-percentage-item.html is a flaky failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=216292

            Bug ID: 216292
           Summary: [ macOS wk2 Release ]
                    imported/w3c/web-platform-tests/css/css-flexbox/quirks
                    -auto-block-size-with-percentage-item.html is a flaky
                    failure
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: hector_i_lopez at apple.com

imported/w3c/web-platform-tests/css/css-flexbox/quirks-auto-block-size-with-percentage-item.html

Test is a flaky failure according to history on macOS wk2 Release. First occurrence of failure is at r 266719.

Was able to reproduce on Catalina:

run-webkit-tests imported/w3c/web-platform-tests/css/css-flexbox/quirks-auto-block-size-with-percentage-item.html  --iterations 100 --exit-after-n-failures 3

[2/100] imported/w3c/web-platform-tests/css/css-flexbox/quirks-auto-block-size-with-percentage-item.html failed unexpectedly (text diff)
[12/100] imported/w3c/web-platform-tests/css/css-flexbox/quirks-auto-block-size-with-percentage-item.html failed unexpectedly (text diff)
[15/100] imported/w3c/web-platform-tests/css/css-flexbox/quirks-auto-block-size-with-percentage-item.html failed unexpectedly (text diff)
Exiting early after 3 failures. 15 tests run.


12 tests ran as expected, 3 didn't (85 didn't run):


Regressions: Unexpected text-only failures (1)
  imported/w3c/web-platform-tests/css/css-flexbox/quirks-auto-block-size-with-percentage-item.html [ Failure ]

Diff:
--- /Volumes/Data/slave/catalina-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/css/css-flexbox/quirks-auto-block-size-with-percentage-item-expected.txt
+++ /Volumes/Data/slave/catalina-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/css/css-flexbox/quirks-auto-block-size-with-percentage-item-actual.txt
@@ -2,5 +2,12 @@



-PASS #container 1 
+FAIL #container 1 assert_equals: 
+<div id="container" style="width:200px; height:456px;">
+  <div style="display:flex; background:blue;" data-expected-height="100">
+    <img style="width:100px; height: 50%;" src="support/1x1-green.png" data-expected-height="100">
+    <div style="width: 50px; height: 100%; background: red;" data-expected-height="0"></div>
+  </div>
+</div>
+height expected 100 but got 0

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