Bug 261529 – [NEW TEST] [ macOS ] API tests brings up a "There is no application set to open the URL callback:playing." dialogue box

• Component: New Bugs
• Status: RESOLVED FIXED

[Robert Jenner]

When the bots run-api-tests they will encounter a dialog box that indicates: "There is no application set to open the URL callback:playing."

[Robert Jenner]

Created attachment 467677 [details]
Screenshot of dialogue box

[Radar WebKit Bug Importer]

<rdar://problem/115450715>

[Robert Jenner]

I wasn't able to locally reproduce this. But I have observed every macOS experiencing this issue. It does occur when we run-webkit-tests. Doing a quick search it looks like there are a few files that have reference to this:

Tools/TestWebKitAPI//Tests/WebKitLegacy/ios/video-with-audio.html:14:            window.location = 'callback:playing';
Tools/TestWebKitAPI//Tests/WebKitLegacy/ios/video-with-paused-audio-and-playing-muted.html:25:                window.location = 'callback:playing';
Tools/TestWebKitAPI//Tests/WebKitLegacy/ios/video-with-muted-audio-and-webaudio.html:17:                window.location = 'callback:playing';
Tools/TestWebKitAPI//Tests/WebKitLegacy/ios/video-with-muted-audio.html:14:                window.location = 'callback:playing';
Tools/TestWebKitAPI//Tests/WebKitLegacy/ios/video-without-audio.html:14:            window.location = 'callback:playing';
Tools/TestWebKitAPI//Tests/WebKitLegacy/ios/audio-only.html:14:            window.location = 'callback:playing';
Tools/TestWebKitAPI//Tests/WebKitCocoa/large-video-without-audio.html:15:            window.location = 'callback:playing';
Tools/TestWebKitAPI//Tests/mac/MediaPlaybackSleepAssertion.html:20:            window.location = 'callback:playing';

[Robert Jenner]

After digging further, I have found that:

TestWebKitAPI.WKWebViewSuspendAllMediaPlayback.PauseWhenResume

is the test that causes this behavior. Running it individually causes the dialogue box to appear.

[Robert Jenner]

This test is a new test, and was introduced recently at:

https://commits.webkit.org/266590@main

I am going to disable this individual test because the constant error/dialogue boxes that pop up on screen could cause issues with our testing automation.

[EWS]

Test gardening commit 267972@main (de368161de23): <https://commits.webkit.org/267972@main>

Reviewed commits have been landed. Closing PR #17753 and removing active labels.

[Dana Estra]

Pull request: https://github.com/WebKit/WebKit/pull/17786

[EWS]

Committed 268036@main (68ac9887adc9): <https://commits.webkit.org/268036@main>

Reviewed commits have been landed. Closing PR #17786 and removing active labels.