Update civicrm-drupal and civicrm-wordpress tests for PHPUnit 6 compatibility
The test suites within civicrm-{drupal,wordpress}.git are not compatible with PHPUnit 6+. This is because they use the base class \PHPUnit_Framework_TestCase
, which was deprecated phpunit5 and removed in phpunit6.
The equivalent class in phpunit5+ is \PHPUnit\Framework\TestCase
.