Providence contains a directory at its root containing test scripts.
In providence/tests are contained our (hopefully) ever-expanding array of CA unit tests. All tests are written for use with the PHPUnit  testing framework and should be run with the phpunit command.
If you receive errors while running any of these tests it may indicate a bug in CA or a problem with your set up. If you think the error indicates the former please contact us at firstname.lastname@example.org.
Don't forget to include the full text of any error messages. And please do contact us... the only way bugs get fixed is if we know about them. :-)