[Webkit-unassigned] [Bug 221343] New: ASSERTION FAILED: Completion handler should always be called under WebKit::VideoFullscreenManagerProxy::forEachSession

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=221343

            Bug ID: 221343
           Summary: ASSERTION FAILED: Completion handler should always be
                    called under
                    WebKit::VideoFullscreenManagerProxy::forEachSession
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ryanhaddad at apple.com

Seeing the following test consistently assert on iOS debug bots:

    TestWebKitAPI.WKWebViewCloseAllMediaPresentations.VideoFullscreen
        ASSERTION FAILED: Completion handler should always be called
        !m_function
        /Volumes/Data/slave/ios-simulator-14-debug/build/WebKitBuild/Debug-iphonesimulator/usr/local/include/wtf/CompletionHandler.h(58) : WTF::CompletionHandler<void ()>::~CompletionHandler()
        1   0x1119776e9 WTFCrash
        2   0x1197453f7 WTF::CompletionHandler<void ()>::~CompletionHandler()
        3   0x1197429a5 WTF::CompletionHandler<void ()>::~CompletionHandler()
        4   0x11a5a9728 auto -[WKWebView closeAllMediaPresentations:]::$_4::operator()<WebKit::VideoFullscreenModelContext, WebCore::VideoFullscreenInterfaceAVKit>(WebKit::VideoFullscreenModelContext&, WebCore::VideoFullscreenInterfaceAVKit&)
        5   0x11a5a9618 WTF::Detail::CallableWrapper<-[WKWebView closeAllMediaPresentations:]::$_4, void, WebKit::VideoFullscreenModelContext&, WebCore::VideoFullscreenInterfaceAVKit&>::call(WebKit::VideoFullscreenModelContext&, WebCore::VideoFullscreenInterfaceAVKit&)
        6   0x11a711fb7 WTF::Function<void (WebKit::VideoFullscreenModelContext&, WebCore::VideoFullscreenInterfaceAVKit&)>::operator()(WebKit::VideoFullscreenModelContext&, WebCore::VideoFullscreenInterfaceAVKit&) const
        7   0x11a711b82 WebKit::VideoFullscreenManagerProxy::forEachSession(WTF::Function<void (WebKit::VideoFullscreenModelContext&, WebCore::VideoFullscreenInterfaceAVKit&)>&&)
        8   0x11a573a65 -[WKWebView closeAllMediaPresentations:]
        9   0x10e549b60 WKWebViewCloseAllMediaPresentations_VideoFullscreen_Test::TestBody()
        10  0x10e5e1d84 void testing::internal::HandleSehExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*)
        11  0x10e5bedeb void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*)
        12  0x10e5bed26 testing::Test::Run()
        13  0x10e5bfb5a testing::TestInfo::Run()
        14  0x10e5c0984 testing::TestCase::Run()
        15  0x10e5cb7f8 testing::internal::UnitTestImpl::RunAllTests()
        16  0x10e5e6454 bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*)
        17  0x10e5cb30b bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*)
        18  0x10e5cb1dd testing::UnitTest::Run()
        19  0x10e3fc821 RUN_ALL_TESTS()
        20  0x10e3fc7b2 TestWebKitAPI::TestsController::run(int, char**)
        21  0x10e591d8d main
        22  0x147002409 start
        23  0x2
        Child process terminated with signal 11: Segmentation fault

https://results.webkit.org/?suite=api-tests&test=TestWebKitAPI.WKWebViewCloseAllMediaPresentations.VideoFullscreen

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