Added new tests for BETA and RC versions

Author: javiereguiluz

tests/Symfony/Installer/Tests/IntegrationTest.php

@@ -106,6 +106,18 @@ public function provideSymfonyInstallationData()
                 '/.*Symfony 2\.5\.6 was successfully installed.*/',
                 '/Symfony version 2\.5\.6 - app\/dev\/debug/',
             ),
+
+            array(
+                '2.7-BETA1',
+                '/.*Symfony 2\.7\-BETA1 was successfully installed.*/',
+                '/Symfony version 2\.7\-BETA1 - app\/dev\/debug/',
+            ),
+
+            array(
+                '2.7-RC1',
+                '/.*Symfony 2\.7\-RC1 was successfully installed.*/',
+                '/Symfony version 2\.7\-RC1 - app\/dev\/debug/',
+            ),
         );
     }
 }