Bug 270860 – REGRESSION (275949@main): 18 imported WPT /i18n/.../css-text-line-break* tests are consistent/flaky failures.

• Status: RESOLVED
• Resolution: FIXED
• Component: Text

[Jay Stfleur]

Created attachment 470323 [details]
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

[Radar WebKit Bug Importer]

<rdar://problem/124463423>

[Ben Schwartz]

Full list of [currently known] tests with this issue:

  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
  imported/w3c/web-platform-tests/css/css-text/i18n/unknown-lang/css-text-line-break-cj-loose.html
  imported/w3c/web-platform-tests/css/css-text/i18n/unknown-lang/css-text-line-break-cj-normal.html
  imported/w3c/web-platform-tests/css/css-text/i18n/unknown-lang/css-text-line-break-cpm-loose.html 
  imported/w3c/web-platform-tests/css/css-text/i18n/unknown-lang/css-text-line-break-hyphens-loose.html 
  imported/w3c/web-platform-tests/css/css-text/i18n/unknown-lang/css-text-line-break-hyphens-normal.html
  imported/w3c/web-platform-tests/css/css-text/i18n/unknown-lang/css-text-line-break-iteration-loose.html
  imported/w3c/web-platform-tests/css/css-text/i18n/unknown-lang/css-text-line-break-po-loose.html 
  imported/w3c/web-platform-tests/css/css-text/i18n/zh/css-text-line-break-zh-cj-loose.html
  imported/w3c/web-platform-tests/css/css-text/i18n/zh/css-text-line-break-zh-cj-normal.html
  imported/w3c/web-platform-tests/css/css-text/i18n/zh/css-text-line-break-zh-cpm-loose.html
  imported/w3c/web-platform-tests/css/css-text/i18n/zh/css-text-line-break-zh-hyphens-loose.html
  imported/w3c/web-platform-tests/css/css-text/i18n/zh/css-text-line-break-zh-hyphens-normal.html
  imported/w3c/web-platform-tests/css/css-text/i18n/zh/css-text-line-break-zh-iteration-loose.html
  imported/w3c/web-platform-tests/css/css-text/i18n/zh/css-text-line-break-zh-po-loose.html

I will update the test expectations Jay set in 276008@main to reflect the new findings.

[zalan]

Created attachment 470743 [details]
[fast-cq]Patch

[EWS]

Committed 277033@main (4754c8d81df8): <https://commits.webkit.org/277033@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 470743 [details].

[EWS]

Test gardening commit 278008@main (2f1dda6fe413): <https://commits.webkit.org/278008@main>

Reviewed commits have been landed. Closing PR #27767 and removing active labels.