Limit phpunit discovery to *Test.php

Author: maxbanton

phpunit.xml.dist

@@ -17,7 +17,7 @@
   </coverage>
   <testsuites>
     <testsuite name="Handler Test Suite">
-      <directory suffix=".php">./tests/</directory>
+      <directory suffix="Test.php">./tests/</directory>
     </testsuite>
   </testsuites>
 </phpunit>