973560 - Mutt test 'testController/testExpectedEvents.js' fails under xvfb with 'TypeError: callback is not a function'

Status: RESOLVED WONTFIX

(Testing Graveyard :: Mozmill, defect)

Description

[Henrik Skupin [:whimboo][⌚️UTC+1]]

Running Mozmill under xvfb on Linux on display 99 always causes the following test to fail:

$ DISPLAY=0:99 time mozmill -b /mozilla/bin/nightly/firefox -t mutt/mutt/tests/js/testController/testExpectedEvents.js

Failure:

ERROR | Test Failure | {
  "exception": {
    "message": "MozMillElement.mouseEvent() contextmenu event fired", 
    "lineNumber": 24, 
    "name": "Error", 
    "fileName": "resource://mozmill/stdlib/EventUtils.js"
  }
}
TEST-UNEXPECTED-FAIL | /mozilla/code/mozmill/mutt/mutt/tests/js/testController/testExpectedEvents.js | test
TEST-END | /mozilla/code/mozmill/mutt/mutt/tests/js/testController/testExpectedEvents.js | finished in 207ms
CRITICAL | Framework Failure | {
  "message": "[JavaScript Error: \"MozMillElement.mouseEvent() contextmenu event target \" {file: \"resource://mozmill/stdlib/EventUtils.js\" line: 24}]"
}
!!! error running onStopped callback: TypeError: callback is not a function

Comment 1

[Henrik Skupin [:whimboo][⌚️UTC+1]]

The code fails here:
https://github.com/mozilla/mozmill/blob/hotfix-2.0/mozmill/mozmill/extension/resource/stdlib/EventUtils.js#L22

Comment 2

[Henrik Skupin [:whimboo][⌚️UTC+1]]

Not sure why this should be a good first bug. Please ask the owners of a component before you do those changes. Thanks.

Comment 3

[:Irving Reid (No longer working on Firefox)]

I see this occasionally, usually when a test has failed for some other reason and hasn't done its final cleanup.

As far as I can tell, it's coming from httpd.js (we have several copies in the tree; see http://dxr.mozilla.org/mozilla-central/search?q=%22error+running+onStopped+callback%22&case=true).

When xpcshell is shutting down, the socket in use by httpd.js is automatically closed, and httpd.js gets the shutdown notification. httpd.js tries to call back to a listener waiting for the async shutdown, but in this case nobody has called httpserver.stop(aCallback), so there is nothing to call.

Comment 4

[Henrik Skupin [:whimboo][⌚️UTC+1]]

Mozmill will reach its end of life soon. We are currently working on getting all the tests for Firefox ported to Marionette. For status updates please see bug 1080766.