Fix bug 1005397

Change following tests from expecting 400 to 404
* Set test_create_image_specify_uuid_37_characters_or_more
* Set test_create_image_specify_uuid_35_characters_or_less

Change-Id: Ica31ba9bc738b41d721afb87468e5667c0dfbb5c
diff --git a/tempest/tests/compute/test_images.py b/tempest/tests/compute/test_images.py
index 694965f..94bab4f 100644
--- a/tempest/tests/compute/test_images.py
+++ b/tempest/tests/compute/test_images.py
@@ -203,29 +203,27 @@
                       " characters")
 
     @attr(type='negative')
-    @unittest.skip("Until Bug 1005397 is fixed")
     def test_create_image_specify_uuid_35_characters_or_less(self):
         """Return an error if Image ID passed is 35 characters or less"""
         try:
             snapshot_name = rand_name('test-snap-')
             test_uuid = ('a' * 35)
-            self.assertRaises(exceptions.BadRequest, self.client.create_image,
+            self.assertRaises(exceptions.NotFound, self.client.create_image,
                               test_uuid, snapshot_name)
         except:
-            self.fail("Should return 400 Bad Request if server uuid is 35"
+            self.fail("Should return 404 Not Found if server uuid is 35"
                       " characters or less")
 
     @attr(type='negative')
-    @unittest.skip("Until Bug 1005397 is fixed")
     def test_create_image_specify_uuid_37_characters_or_more(self):
         """Return an error if Image ID passed is 37 characters or more"""
         try:
             snapshot_name = rand_name('test-snap-')
             test_uuid = ('a' * 37)
-            self.assertRaises(exceptions.BadRequest, self.client.create_image,
+            self.assertRaises(exceptions.NotFound, self.client.create_image,
                               test_uuid, snapshot_name)
         except:
-            self.fail("Should return 400 Bad Request if server uuid is 37"
+            self.fail("Should return 404 Not Found if server uuid is 37"
                       " characters or more")
 
     @attr(type='negative')