test case for duplicate call

[szabgab]

This test case currently passes, but the 2nd call to compare_pdf should not raise an exception.
It does because of this error: #12
So once that issue is fixed we should be able to just call compare_pdf twice.

[abeverley]

Thanks, but I'm not sure about this - if I've understood correctly, this is a test for something that is broken..?

[szabgab]

yes.
the 2nd call to compare_pdf($pdf, '002_basic.pdf'); will now raise an exception. IMHO, It should not. so for now with the eval block this test passes, but you can use it to verify if and someone fixes the issue.