UITest_writerperfect_epubexport hang (only sometimes)
sbergman at redhat.com
Fri Feb 16 22:26:10 UTC 2018
On 31.01.2018 11:20, Stephan Bergmann wrote:
> On 23.01.2018 09:18, Miklos Vajna wrote:
>> I've added UITest_writerperfect_epubexport a while ago, and while I did
>> not see it hanging in the recent past, both Noel and Stephan run into
>> a hang of it from time to time.
>> The code is here:
>> The backtrace always looks like this:
>> self.ui_test.execute_blocking_action() gets an UNO method where invoking
>> it opens a dialog and the python method also gets a callback. When the
>> hang happens, then it seems the problem is that the Python thread waits
>> for the dialog to be closed, but in fact it's already closed, so it
>> waits forever joining the python thread.
>> I don't think there is anything really special in this test, rather I
>> guess the problem happens here more frequently (than elsewhere) because
>> normally these dialogs are invoked via UNO commands, where we just
>> execute the UNO command, wait for the dialog to appear then work with
>> it. (I did not look at the implementation, perhaps in this case there is
>> no Python thread involved?)
>> So I wonder -- do you think it would be possible or would make sense to
>> have a way similar to self.xUITest.executeCommand (execute a blocking
>> command async), but for UNO methods that open a dialog? I.e. also
>> similar to self.ui_test.execute_blocking_action, but without an actual
>> Perhaps that would be a fix for these strange hangs.
> Is anything blocking this?
> is yet another hung Gerrit/Jenkins build that might or might not be
> caused by this issue.
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