Visual PHP Unit + WordPress Unit Tests

House of Payne

I saw VisualPHPUnit and was immediately interested.  This provided a very nice visual wrapper to PHPUnit without full blown continuous integration, and kept a history of your test passes / fails.

VisualPHPUnit

VisualPHPUnit is a wrapper for PHPUnit.  It expects that your tests are compatible with PHPUnit’s command line test runner already.

Could this work with WordPress’ Unit Tests?  After some investigation, I’m sad to report that, no, it can’t.  VisualPHPUnit makes several assumptions that are incompatible with WordPress’ test suite.  These are not bad assumptions, just incompatible ones.

  • Include the bootstrap before the PHPUnit library.  This causes problems because the bootstrap cannot reference PHPUnit (e.g. extending PHPUnit_Framework_TestCase).
  • Always include the PHPUnit library.  This causes problems because the bootstrap may have already included PHPUnit (to solve the above problem).  Code like this would solve the issue:
    if( !function_exists( 'phpunit_autoload' ) ) {
    require_once( 'PHPUnit/Autoload.php' );
    }
  • Each test case…

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