Test window creation

[email protected] (Luis Mochan)
Newsgroups perl.module-authors
Message-ID <[email protected]>
I wonder how do you 'Test' a module that is related to a graphical
interface. I got failure reports from cpan testers with  messages like:

#          got: 'couldn't connect to display ":0" at \
/home/cpan/pit/thr/conf/perl-5.24.0/.cpanplus/5.24.0/build/Ss0ihFoAc_/Tk-804.033/blib/lib/Tk/MainWindow.pm \
line 53. 
# Tk::MainWindow->new() at t/create.t line 45.

I guess that my testing code should have realized that there was no
available display, skipped the test and issued a warning instead of
failing, but I don't know how to do that. Any suggestion?

Best regards,
Luis

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