Bug 270879 – REGRESSION:275949@main [ iOS macOS ] 14X imported/w3c/web-platform-tests/css/css-text/i18n/other-lang/* (layout-tests) are flaky failures

• Status: NEW
• Component: Layout and Rendering

[Dawn Morningstar]

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/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-cpm-loose.html 
These tests became flaky failures after 275949@main https://commits.webkit.org/275949@main 

Considering these are flaky it won't be as simple as a rebasline.

HISTORY:
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

DIFF:
--- /Volumes/Data/worker/Apple-iPadOS-17-Simulator-Release-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/css/css-text/i18n/other-lang/css-text-line-break-de-cpm-loose-expected.txt
+++ /Volumes/Data/worker/Apple-iPadOS-17-Simulator-Release-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/css/css-text/i18n/other-lang/css-text-line-break-de-cpm-loose-actual.txt
@@ -1,12 +1,51 @@
 
-PASS 30FB  KATAKANA MIDDLE DOT may NOT appear at line start if de and loose
-PASS FF1A  FULLWIDTH COLON may NOT appear at line start if de and loose
-PASS FF1B  FULLWIDTH SEMICOLON may NOT appear at line start if de and loose
-PASS FF65  HALFWIDTH KATAKANA MIDDLE DOT may NOT appear at line start if de and loose
-PASS 203C  DOUBLE EXCLAMATION MARK may NOT appear at line start if de and loose
-PASS 2047  DOUBLE QUESTION MARK may NOT appear at line start if de and loose
-PASS 2048  QUESTION EXCLAMATION MARK may NOT appear at line start if de and loose
-PASS 2049  EXCLAMATION QUESTION MARK may NOT appear at line start if de and loose
-PASS FF01  FULLWIDTH EXCLAMATION MARK may NOT appear at line start if de and loose
-PASS FF1F  FULLWIDTH QUESTION MARK may NOT appear at line start if de and loose
-
+FAIL 30FB  KATAKANA MIDDLE DOT may NOT appear at line start if de and loose assert_approx_equals: expected 99 +/- 1 but got 69
+FAIL FF1A  FULLWIDTH COLON may NOT appear at line start if de and loose assert_approx_equals: expected 99 +/- 1 but got 69
+FAIL FF1B  FULLWIDTH SEMICOLON may NOT appear at line start if de and loose assert_approx_equals: expected 99 +/- 1 but got 69
+FAIL FF65  HALFWIDTH KATAKANA MIDDLE DOT may NOT appear at line start if de and loose assert_approx_equals: expected 84 +/- 1 but got 54
+FAIL 203C  DOUBLE EXCLAMATION MARK may NOT appear at line start if de and loose assert_approx_equals: expected 85.669921875 +/- 1 but got 55.669921875
+FAIL 2047  DOUBLE QUESTION MARK may NOT appear at line start if de and loose assert_approx_equals: expected 102.369140625 +/- 1 but got 72.369140625
+FAIL 2048  QUESTION EXCLAMATION MARK may NOT appear at line start if de and loose assert_approx_equals: expected 94.01953125 +/- 1 but got 64.01953125
+FAIL 2049  EXCLAMATION QUESTION MARK may NOT appear at line start if de and loose assert_approx_equals: expected 94.01953125 +/- 1 but got 64.01953125
+FAIL FF01  FULLWIDTH EXCLAMATION MARK may NOT appear at line start if de and loose assert_approx_equals: expected 99 +/- 1 but got 69
+FAIL FF1F  FULLWIDTH QUESTION MARK may NOT appear at line start if de and loose assert_approx_equals: expected 99 +/- 1 but got 69
+30FB
+文文文文文文・字字
+文文文文文
+文・字字
+FF1A
+文文文文文文：字字
+文文文文文
+文：字字
+FF1B
+文文文文文文；字字
+文文文文文
+文；字字
+FF65
+文文文文文文･字字
+文文文文文
+文･字字
+203C
+文文文文文文‼字字
+文文文文文
+文‼字字
+2047
+文文文文文文â‡å­—å­—
+文文文文文
+æ–‡â‡å­—å­—
+2048
+文文文文文文âˆå­—å­—
+文文文文文
+æ–‡âˆå­—å­—
+2049
+文文文文文文â‰å­—å­—
+文文文文文
+æ–‡â‰å­—å­—
+FF01
+文文文文文文ï¼å­—å­—
+文文文文文
+æ–‡ï¼å­—å­—
+FF1F
+文文文文文文？字字
+文文文文文
+文？字字

Diff-url:
https://build.webkit.org/results/Apple-iPadOS-17-Simulator-Release-WK2-Tests/275976@main%20(1233)/imported/w3c/web-platform-tests/css/css-text/i18n/other-lang/css-text-line-break-de-cpm-loose-diff.txt

[Radar WebKit Bug Importer]

<rdar://problem/124480983>

[Dawn Morningstar]

I've found 7 more tests that also became flaky because of this:
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-cj-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-po-loose.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-cj-normal.html 
imported/w3c/web-platform-tests/css/css-text/i18n/unknown-lang/css-text-line-break-hyphens-loose.html

[Dawn Morningstar]

Spoke too soon; and 4 more making a total of 14:
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-po-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 


History:
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%2Fzh%2Fcss-text-line-break-zh-cpm-loose.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-text%2Fi18n%2Fzh%2Fcss-text-line-break-zh-hyphens-loose.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-text%2Fi18n%2Fzh%2Fcss-text-line-break-zh-hyphens-normal.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-text%2Fi18n%2Fzh%2Fcss-text-line-break-zh-po-loose.html