phpunit test must be installed in www/ folder

Because www folder is source base, if phpunit is installed outside it
cannot find the classes

www/vendor/composer/autoload_psr4.php

@@ -6,4 +6,7 @@ $vendorDir = dirname(__DIR__);
 $baseDir = dirname($vendorDir);
 
 return array(
+    'PhpParser\\' => array($vendorDir . '/nikic/php-parser/lib/PhpParser'),
+    'Doctrine\\Instantiator\\' => array($vendorDir . '/doctrine/instantiator/src/Doctrine/Instantiator'),
+    'DeepCopy\\' => array($vendorDir . '/myclabs/deep-copy/src/DeepCopy'),
 );