[Webkit-unassigned] [Bug 255187] New: [ iOS Ventura arm64 ] 2X imported/w3c/web-platform-tests/webaudio/the-audio-api/the-audioparam-interface/ (Layout-tests) are constant text failures

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=255187

            Bug ID: 255187
           Summary: [ iOS Ventura arm64 ] 2X
                    imported/w3c/web-platform-tests/webaudio/the-audio-api
                    /the-audioparam-interface/ (Layout-tests) are constant
                    text failures
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Audio
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Jenner at apple.com
                CC: cdumez at apple.com

imported/w3c/web-platform-tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-audiobuffersource-connections.html
imported/w3c/web-platform-tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-dynamics-compressor-connections.html

are constant text failures on iOS 16 and macOS Ventura running Apple Silicon only. 

HISTORY:
https://results.webkit.org/?suite=layout-tests&suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fwebaudio%2Fthe-audio-api%2Fthe-audioparam-interface%2Fk-rate-audiobuffersource-connections.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fwebaudio%2Fthe-audio-api%2Fthe-audioparam-interface%2Fk-rate-dynamics-compressor-connections.html

These tests all appear to have started to constantly fail after we updated to macOS Ventura 13.3 and iOS 16.4


The diffs for both tests appear to be the same on both tests, and are also the same on both macOS and iOS.
DIFF URLS:
https://build.webkit.org/results/Apple-iOS-16-Simulator-Release-WK2-Tests/262718@main%20(2043)/imported/w3c/web-platform-tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-audiobuffersource-connections-pretty-diff.html
https://build.webkit.org/results/Apple-iOS-16-Simulator-Release-WK2-Tests/262718@main%20(2043)/imported/w3c/web-platform-tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-dynamics-compressor-connections-pretty-diff.html

TEXT DIFF:
 PASS   detune: mod.connect(tstNode[detune]) did not throw an exception.
 PASS   Expected k-rate detune AudioParam with input is not constantly 0.
 PASS   Actual k-rate detune AudioParam with input is not constantly 0.
-PASS   k-rate detune AudioParam with input equals [expected array] with an element-wise tolerance of {"absoluteThreshold":0,"relativeThreshold":0}.
-PASS < [detune] All assertions passed. (total 11 assertions)
-PASS # AUDIT TASK RUNNER FINISHED: 2 tasks ran successfully.
+FAIL X k-rate detune AudioParam with input does not equal [expected array] with an element-wise tolerance of {"absoluteThreshold":0,"relativeThreshold":0}.
+       Index   Actual                  Expected                AbsError                RelError                Test threshold
+       [405]   1.120331e-1     1.120331e-1     7.450581e-9     6.650337e-8     0.000000e+0
+       [431]   1.205153e-1     1.205153e-1     7.450581e-9     6.182268e-8     0.000000e+0
+       [450]   1.267139e-1     1.267139e-1     1.490116e-8     1.175969e-7     0.000000e+0
+       [465]   1.316075e-1     1.316074e-1     1.490116e-8     1.132243e-7     0.000000e+0
+       [491]   1.400897e-1     1.400896e-1     1.490116e-8     1.063688e-7     0.000000e+0
+       ...and 157 more errors.
+       Max AbsError of 5.960464e-8 at index of 1305.
+       [1305]  5.078439e-1     5.078438e-1     5.960464e-8     1.173681e-7     0.000000e+0
+       Max RelError of 1.189577e-7 at index of 787.
+       [787]   2.505288e-1     2.505288e-1     2.980232e-8     1.189577e-7     0.000000e+0
+ assert_true: expected true got false
+FAIL < [detune] 1 out of 11 assertions were failed. assert_true: expected true got false
+FAIL # AUDIT TASK RUNNER FINISHED: 1 out of 2 tasks were failed. assert_true: expected true got false

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