[Webkit-unassigned] [Bug 43466] New: NRWT: websocket_server startup detection failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=43466

           Summary: NRWT: websocket_server startup detection failure
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: tkent at chromium.org
                CC: eric at webkit.org


websocket_server startup detection sometimes fails on Chromium Windows and Chromium Mac bots.

http://build.webkit.org/builders/Chromium%20Mac%20Release%20(Tests)/builds/950/steps/layout-test/logs/stdio
http://build.webkit.org/builders/Chromium%20Mac%20Release%20(Tests)/builds/1121/steps/layout-test/logs/stdio

Traceback (most recent call last):
  File "./WebKitTools/Scripts/new-run-webkit-tests", line 38, in <module>
    sys.exit(run_webkit_tests.main())
  File "/Users/cltbld/Desktop/BuildSlaveData/WebKit-BuildSlave2/chromium-mac-release-tests/build/WebKitTools/Scripts/webkitpy/layout_tests/run_webkit_tests.py", line 1677, in main
    return run(port_obj, options, args)
  File "/Users/cltbld/Desktop/BuildSlaveData/WebKit-BuildSlave2/chromium-mac-release-tests/build/WebKitTools/Scripts/webkitpy/layout_tests/run_webkit_tests.py", line 1441, in run
    num_unexpected_results = test_runner.run(result_summary)
  File "/Users/cltbld/Desktop/BuildSlaveData/WebKit-BuildSlave2/chromium-mac-release-tests/build/WebKitTools/Scripts/webkitpy/layout_tests/run_webkit_tests.py", line 754, in run
    self._port.start_websocket_server()
  File "/Users/cltbld/Desktop/BuildSlaveData/WebKit-BuildSlave2/chromium-mac-release-tests/build/WebKitTools/Scripts/webkitpy/layout_tests/port/base.py", line 467, in start_websocket_server
    self._websocket_server.start()
  File "/Users/cltbld/Desktop/BuildSlaveData/WebKit-BuildSlave2/chromium-mac-release-tests/build/WebKitTools/Scripts/webkitpy/layout_tests/port/websocket_server.py", line 219, in start
    (self._server_name, self._port))
webkitpy.layout_tests.port.websocket_server.PyWebSocketNotStarted: Failed to start PyWebSocket server on port 8880.

It seems url_is_live() unexpectedly returns False.

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