[Webkit-unassigned] [Bug 270860] New: REGRESSION (275949 at main): [ MacOS iOS ] 4X imported/w3c/web-platform-tests/css/css-text/i18n/other-lang/css-text-line-break test is consistent/flaky failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=270860

            Bug ID: 270860
           Summary: REGRESSION (275949 at main): [ MacOS iOS ] 4X
                    imported/w3c/web-platform-tests/css/css-text/i18n/othe
                    r-lang/css-text-line-break test is consistent/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: j_stfleur at apple.com

Created attachment 470323

  --> https://bugs.webkit.org/attachment.cgi?id=470323&action=review

Tests text diffs

Description:
imported/w3c/web-platform-tests/css/css-text/i18n/other-lang/css-text-line-break-de-cpm-loose.html 
imported/w3c/web-platform-tests/css/css-text/i18n/other-lang/css-text-line-break-de-hyphens-loose.html
imported/w3c/web-platform-tests/css/css-text/i18n/other-lang/css-text-line-break-de-hyphens-normal.html 
imported/w3c/web-platform-tests/css/css-text/i18n/other-lang/css-text-line-break-de-po-loose.html

Are consistent failures on Ventura+ WK2 x86_64 Release but is flaky on Monterey WK2 x86_64 Release. Tests are flaky on Ventura+ wk1 arm64 and x86_64, tests is flaky on iOS Release and consistent on debug


History:
Added Text diff as Zip folder

https://results.webkit.org/?suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-text%2Fi18n%2Fother-lang%2Fcss-text-line-break-de-cpm-loose.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-text%2Fi18n%2Fother-lang%2Fcss-text-line-break-de-hyphens-loose.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-text%2Fi18n%2Fother-lang%2Fcss-text-line-break-de-hyphens-normal.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-text%2Fi18n%2Fother-lang%2Fcss-text-line-break-de-po-loose.html

--- /Volumes/Data/worker/Apple-Sonoma-Release-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/css/css-text/i18n/other-lang/css-text-line-break-de-po-loose-expected.txt
+++ /Volumes/Data/worker/Apple-Sonoma-Release-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/css/css-text/i18n/other-lang/css-text-line-break-de-po-loose-actual.txt
@@ -1,12 +1,51 @@

-PASS 00B0  DEGREE SIGN may NOT appear at line start if de and loose
-PASS 2030  PER MILLE SIGN may NOT appear at line start if de and loose
-PASS 2032  PRIME may NOT appear at line start if de and loose
-PASS 2033  DOUBLE PRIME may NOT appear at line start if de and loose
-PASS 2035  REVERSED PRIME may NOT appear at line start if de and loose
-PASS 2103  DEGREE CELSIUS may NOT appear at line start if de and loose
-PASS 2109  DEGREE FAHRENHEIT may NOT appear at line start if de and loose
-PASS FE6A  SMALL PERCENT SIGN may NOT appear at line start if de and loose
-PASS FF05  FULLWIDTH PERCENT SIGN may NOT appear at line start if de and loose
-PASS FFE0  FULLWIDTH CENT SIGN may NOT appear at line start if de and loose
-
+FAIL 00B0  DEGREE SIGN may NOT appear at line start if de and loose assert_approx_equals: expected 80.9970703125 +/- 1 but got 50.9970703125
+FAIL 2030  PER MILLE SIGN may NOT appear at line start if de and loose assert_approx_equals: expected 99 +/- 1 but got 69
+FAIL 2032  PRIME may NOT appear at line start if de and loose assert_approx_equals: expected 78.990234375 +/- 1 but got 48.990234375
+FAIL 2033  DOUBLE PRIME may NOT appear at line start if de and loose assert_approx_equals: expected 84.6884765625 +/- 1 but got 54.6884765625
+FAIL 2035  REVERSED PRIME may NOT appear at line start if de and loose assert_approx_equals: expected 78.990234375 +/- 1 but got 48.990234375
+FAIL 2103  DEGREE CELSIUS may NOT appear at line start if de and loose assert_approx_equals: expected 102.662109375 +/- 1 but got 72.662109375
+FAIL 2109  DEGREE FAHRENHEIT may NOT appear at line start if de and loose assert_approx_equals: expected 99.322265625 +/- 1 but got 69.322265625
+FAIL FE6A  SMALL PERCENT SIGN may NOT appear at line start if de and loose assert_approx_equals: expected 99 +/- 1 but got 69
+FAIL FF05  FULLWIDTH PERCENT SIGN may NOT appear at line start if de and loose assert_approx_equals: expected 99 +/- 1 but got 69
+FAIL FFE0  FULLWIDTH CENT SIGN may NOT appear at line start if de and loose assert_approx_equals: expected 99 +/- 1 but got 69

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