use raw image type in tests

Author: k0ka

src/Images/v2/Models/Image.php

@@ -8,6 +8,7 @@
 use OpenStack\Common\Resource\Alias;
 use OpenStack\Common\Resource\Creatable;
 use OpenStack\Common\Resource\Deletable;
+use OpenStack\Common\Resource\HasWaiterTrait;
 use OpenStack\Common\Resource\Listable;
 use OpenStack\Common\Resource\OperatorResource;
 use OpenStack\Common\Resource\Retrievable;
@@ -20,6 +21,8 @@
  */
 class Image extends OperatorResource implements Creatable, Listable, Retrievable, Deletable
 {
+    use HasWaiterTrait;
+
     /** @var string */
     public $status;
 

tests/sample/Images/v2/ImageTest.php

@@ -18,7 +18,7 @@ public function testCreate(): Image
                 '{tag1}'            => 'ubuntu',
                 '{tag2}'            => 'test',
                 '{containerFormat}' => 'bare',
-                '{diskFormat}'      => 'qcow2',
+                '{diskFormat}'      => 'raw',
                 '{visibility}'      => 'private',
             ]
         );