add coverage whitelist

Author: chris48s

phpunit.xml.dist

@@ -31,6 +31,9 @@
 
     <!-- Prevent coverage reports from looking in tests, vendors and bootstrap.php -->
     <filter>
+        <whitelist>
+            <directory suffix=".php">./src</directory>
+        </whitelist>
         <blacklist>
             <directory suffix=".php">./vendor/</directory>
             <directory suffix=".ctp">./vendor/</directory>