[Webkit-unassigned] [Bug 271784] New: 2 fast/viewport/viewport-legacy-xhtmlmp*.html layout tests are constantly failing.

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Mar 27 12:45:17 PDT 2024


https://bugs.webkit.org/show_bug.cgi?id=271784

            Bug ID: 271784
           Summary: 2 fast/viewport/viewport-legacy-xhtmlmp*.html layout
                    tests are constantly failing.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ben_schwartz at apple.com
                CC: a_protyasha at apple.com, bfulgham at webkit.org,
                    simon.fraser at apple.com,
                    webkit-bot-watchers-bugzilla at group.apple.com,
                    webkit-bug-importer at group.apple.com, zalan at apple.com

The following 2 currently skipped layout tests are constantly failing locally:

fast/viewport/viewport-legacy-xhtmlmp.html
fast/viewport/viewport-legacy-xhtmlmp-remove-and-add.html

HISTORY:

None (tests are skipped).

TEXT DIFFs:

viewport-legacy-xhtmlmp.html:

-ALERT: viewport size 320x480 scale 1 with limits [1, 5] and userScalable true
+ALERT: viewport size 980x1078 scale 0.326531 with limits [0.326531, 5] and userScalable true

viewport-legacy-xhtmlmp-remove-and-add.html
-ALERT: viewport size 320x480 scale 1 with limits [1, 5] and userScalable true
-ALERT: viewport size 320x480 scale 1 with limits [1, 5] and userScalable true
-ALERT: viewport size 320x480 scale 1 with limits [1, 5] and userScalable true
+ALERT: viewport size 980x1078 scale 0.326531 with limits [0.326531, 5] and userScalable true
+ALERT: viewport size 980x1078 scale 0.326531 with limits [0.326531, 5] and userScalable true
+ALERT: viewport size 980x1078 scale 0.326531 with limits [0.326531, 5] and userScalable true

REPRODUCIBILITY:

I was able to reproduce this issue on the iOS Simulator (17.4/21E213) ToT using the following command:

run-webkit-tests --ios-simulator -v fast/viewport/viewport-legacy-xhtmlmp-remove-and-add.html fast/viewport/viewport-legacy-xhtmlmp.html --skipped ignore

REGRESSION:

Seeing as this is a viewport size issue, I would guess that the regression coincides with a simulated/physical device model change.

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