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Bug 363175 - SWTBot tests fon't seem to work in a multiple display (w/ Jenkins XVNC plugin)
Summary: SWTBot tests fon't seem to work in a multiple display (w/ Jenkins XVNC plugin)
Status: CLOSED INVALID
Alias: None
Product: SWTBot
Classification: Technology
Component: SWTBot (show other bugs)
Version: unspecified   Edit
Hardware: PC Linux
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Project Inbox CLA
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Reported: 2011-11-08 09:22 EST by Mickael Istria CLA
Modified: 2011-11-09 07:42 EST (History)
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Description Mickael Istria CLA 2011-11-08 09:22:34 EST 
In order to be able to run tons of UI tests at the same time, I tried to run SWTBot tests on another display of my machine using XVNC plugin.
Most of these tests just failed with a "cannot find display".
Comment 1 Mickael Istria CLA 2011-11-08 11:12:12 EST 
It looks like Display.getDefault causes troubles in multi-display X environment.

I think that the lifecycle of Display in test is a bit tricky, and I've made some improvements to ensure Display is created only once for a test, and that all other places consumes directly this display by reference, or by resolving it via Display.getCurrent() - which only runs in methods annotated by @UIThread.
Comment 2 Mickael Istria CLA 2011-11-09 06:33:20 EST 
I think the buggy behavior I reported is more the consequence of not having a window manager rather than an issue in code.
I make some more tests, but this will probably be an INVALID.
Comment 3 Mickael Istria CLA 2011-11-09 07:42:29 EST 
Confirmed as INVALID. The issue was that I did not have a window manager running on the DISPLAY hosting SWTBot.