Add test to get images by owner

A owner can have more than one image, such as
glance image-list --owner c91a45369df649278e17aaf9bf45095a
+--------------------------------------+---------------------------------+
| ID                                   | Name                            |
+--------------------------------------+---------------------------------+
| b24ca808-8918-454d-8f5f-81fd2160e27c | cirros-0.3.0-x86_64-disk        |
| 8611325e-f46c-40e7-8bcd-e86d45c0d1be | cirros-0.3.4-x86_64-uec         |
| f3cec04d-e4a2-4b43-b706-b84bebc4c71e | cirros-0.3.4-x86_64-uec-kernel  |
| 1158e4ce-baf6-4b1c-9b9d-c6717b585576 | cirros-0.3.4-x86_64-uec-ramdisk |
+--------------------------------------+---------------------------------+

So we can add this method to test get images.

Also related Link:
http://developer.openstack.org/api-ref/image/v2/#show-images

Change-Id: Ie2b0b603fe898857c77bd9002a7e7f316208143c
diff --git a/tempest/api/image/v2/test_images.py b/tempest/api/image/v2/test_images.py
index 443e332..f363d34 100644
--- a/tempest/api/image/v2/test_images.py
+++ b/tempest/api/image/v2/test_images.py
@@ -250,6 +250,16 @@
         self.assertEqual(len(images_list), params['limit'],
                          "Failed to get images by limit")
 
+    @test.idempotent_id('e9a44b91-31c8-4b40-a332-e0a39ffb4dbb')
+    def test_list_image_param_owner(self):
+        # Test to get images by owner
+        image_id = self.created_images[0]
+        # Get image metadata
+        image = self.client.show_image(image_id)
+
+        params = {"owner": image['owner']}
+        self._list_by_param_value_and_assert(params)
+
     @test.idempotent_id('622b925c-479f-4736-860d-adeaf13bc371')
     def test_get_image_schema(self):
         # Test to get image schema