[Webkit-unassigned] [Bug 142637] New: ASSERT(m_plugin) on plugins/snapshotting/snapshot-plugin-not-quite-blocked-by-image.html

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=142637

            Bug ID: 142637
           Summary: ASSERT(m_plugin) on
                    plugins/snapshotting/snapshot-plugin-not-quite-blocked
                    -by-image.html
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ap at webkit.org
                CC: andersca at apple.com, dino at apple.com

I get an assertion when running this test locally, always reproducible by repeating it multiple times:

run-webkit-tests plugins/snapshotting/snapshot-plugin-not-quite-blocked-by-image.html --repeat 100

The reason is that the QuickTime plug-in is 32-bit, so it fails to initialize, PluginView::didFailToInitializePlugin() sets m_plugin to 0, but then we start m_pluginSnapshotTimer regardless.

This makes me confused about how this test (or other snapshotting tests) can ever pass on any debug local builds. They all expect a snapshot that shouldn't be possible to make. 

See also rdar://problem/18994117, rdar://problem/16097212.

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