WP test suite runner

wptest-runner.php

function wptest_run_tests($classes, $classnames = array(), $filter = null ) {
    $suite = new PHPUnit_Framework_TestSuite();

    if ( ! is_array($classnames) ) // For strings, Accept a comma separated list, or a space separated list.
        $classnames = preg_split('![,\s]+!', $classnames);

    $classnames = array_map('strtolower', $classnames);
    $classnames = array_filter($classnames); //strip out any empty items

    foreach ( $classes as $testcase ) {
        if ( ( empty($classnames) || in_array( strtolower( $testcase ), $classnames ) ) &&
             ( is_null( $filter ) || strstr( $testcase, $filter ) )
            ) {
            $suite->addTestSuite($testcase);
        }
    }

    #return PHPUnit::run($suite);
    $result = new PHPUnit_Framework_TestResult;
    require_once('PHPUnit/TextUI/ResultPrinter.php');
    $printer = new PHPUnit_TextUI_ResultPrinter(NULL, WP_PHPUNIT_VERBOSE, !stristr(PHP_OS, 'WIN') );
    $result->addListener($printer);
    return array($suite->run($result, FALSE ), $printer);
}