use the KERNEL_CLASS environment variable for PHPUnit

Author: fbourigault

composer.json

@@ -60,6 +60,11 @@
             "Http\\HttplugBundle\\": ""
         }
     },
+    "autoload-dev": {
+        "classmap": [
+            "Tests/Resources/app/AppKernel.php"
+        ]
+    },
     "scripts": {
         "test": "vendor/bin/phpunit",
         "test-ci": "vendor/bin/phpunit --coverage-text --coverage-clover=build/coverage.xml"

phpunit.xml.dist

@@ -28,5 +28,6 @@
 
     <php>
         <server name="KERNEL_DIR" value="./Tests/Resources/app" />
+        <server name="KERNEL_CLASS" value="AppKernel" />
     </php>
 </phpunit>