Added 'aliases' section to test config file fix yiisoft#130 (yiisoft#131)

Author: Matviy

config/test.php

@@ -7,7 +7,11 @@
  */
 return [
     'id' => 'basic-tests',
-    'basePath' => dirname(__DIR__),    
+    'basePath' => dirname(__DIR__),  
+    'aliases' => [
+        '@bower' => '@vendor/bower-asset',
+        '@npm'   => '@vendor/npm-asset',
+    ],  
     'language' => 'en-US',
     'components' => [
         'db' => $db,