diff --git a/tempest/api/image/base.py b/tempest/api/image/base.py
index 9981292..02d391b 100644
--- a/tempest/api/image/base.py
+++ b/tempest/api/image/base.py
@@ -142,9 +142,9 @@
 
     def _create_image(self):
         name = data_utils.rand_name('image')
-        resp, image = self.os_img_client.create_image(name,
-                                                      container_format='bare',
-                                                      disk_format='raw')
+        _, image = self.os_img_client.create_image(name,
+                                                   container_format='bare',
+                                                   disk_format='raw')
         image_id = image['id']
         self.addCleanup(self.os_img_client.delete_image, image_id)
         return image_id
diff --git a/tempest/api/image/v1/test_image_members.py b/tempest/api/image/v1/test_image_members.py
index 4cbb62f..f91cb69 100644
--- a/tempest/api/image/v1/test_image_members.py
+++ b/tempest/api/image/v1/test_image_members.py
@@ -22,27 +22,21 @@
     @test.attr(type='gate')
     def test_add_image_member(self):
         image = self._create_image()
-        resp = self.client.add_member(self.alt_tenant_id, image)
-        self.assertEqual(204, resp.status)
-        resp, body = self.client.get_image_membership(image)
-        self.assertEqual(200, resp.status)
+        self.client.add_member(self.alt_tenant_id, image)
+        _, body = self.client.get_image_membership(image)
         members = body['members']
         members = map(lambda x: x['member_id'], members)
         self.assertIn(self.alt_tenant_id, members)
         # get image as alt user
-        resp, body = self.alt_img_cli.get_image(image)
-        self.assertEqual(200, resp.status)
+        self.alt_img_cli.get_image(image)
 
     @test.attr(type='gate')
     def test_get_shared_images(self):
         image = self._create_image()
-        resp = self.client.add_member(self.alt_tenant_id, image)
-        self.assertEqual(204, resp.status)
+        self.client.add_member(self.alt_tenant_id, image)
         share_image = self._create_image()
-        resp = self.client.add_member(self.alt_tenant_id, share_image)
-        self.assertEqual(204, resp.status)
-        resp, body = self.client.get_shared_images(self.alt_tenant_id)
-        self.assertEqual(200, resp.status)
+        self.client.add_member(self.alt_tenant_id, share_image)
+        _, body = self.client.get_shared_images(self.alt_tenant_id)
         images = body['shared_images']
         images = map(lambda x: x['image_id'], images)
         self.assertIn(share_image, images)
@@ -51,11 +45,8 @@
     @test.attr(type='gate')
     def test_remove_member(self):
         image_id = self._create_image()
-        resp = self.client.add_member(self.alt_tenant_id, image_id)
-        self.assertEqual(204, resp.status)
-        resp = self.client.delete_member(self.alt_tenant_id, image_id)
-        self.assertEqual(204, resp.status)
-        resp, body = self.client.get_image_membership(image_id)
-        self.assertEqual(200, resp.status)
+        self.client.add_member(self.alt_tenant_id, image_id)
+        self.client.delete_member(self.alt_tenant_id, image_id)
+        _, body = self.client.get_image_membership(image_id)
         members = body['members']
         self.assertEqual(0, len(members), str(members))
diff --git a/tempest/api/image/v1/test_images.py b/tempest/api/image/v1/test_images.py
index 2cc2009..8528e42 100644
--- a/tempest/api/image/v1/test_images.py
+++ b/tempest/api/image/v1/test_images.py
@@ -30,11 +30,11 @@
     def test_register_then_upload(self):
         # Register, then upload an image
         properties = {'prop1': 'val1'}
-        resp, body = self.create_image(name='New Name',
-                                       container_format='bare',
-                                       disk_format='raw',
-                                       is_public=False,
-                                       properties=properties)
+        _, body = self.create_image(name='New Name',
+                                    container_format='bare',
+                                    disk_format='raw',
+                                    is_public=False,
+                                    properties=properties)
         self.assertIn('id', body)
         image_id = body.get('id')
         self.assertEqual('New Name', body.get('name'))
@@ -45,19 +45,19 @@
 
         # Now try uploading an image file
         image_file = StringIO.StringIO(('*' * 1024))
-        resp, body = self.client.update_image(image_id, data=image_file)
+        _, body = self.client.update_image(image_id, data=image_file)
         self.assertIn('size', body)
         self.assertEqual(1024, body.get('size'))
 
     @test.attr(type='gate')
     def test_register_remote_image(self):
         # Register a new remote image
-        resp, body = self.create_image(name='New Remote Image',
-                                       container_format='bare',
-                                       disk_format='raw', is_public=False,
-                                       location=CONF.image.http_image,
-                                       properties={'key1': 'value1',
-                                                   'key2': 'value2'})
+        _, body = self.create_image(name='New Remote Image',
+                                    container_format='bare',
+                                    disk_format='raw', is_public=False,
+                                    location=CONF.image.http_image,
+                                    properties={'key1': 'value1',
+                                                'key2': 'value2'})
         self.assertIn('id', body)
         self.assertEqual('New Remote Image', body.get('name'))
         self.assertFalse(body.get('is_public'))
@@ -68,28 +68,27 @@
 
     @test.attr(type='gate')
     def test_register_http_image(self):
-        resp, body = self.create_image(name='New Http Image',
-                                       container_format='bare',
-                                       disk_format='raw', is_public=False,
-                                       copy_from=CONF.image.http_image)
+        _, body = self.create_image(name='New Http Image',
+                                    container_format='bare',
+                                    disk_format='raw', is_public=False,
+                                    copy_from=CONF.image.http_image)
         self.assertIn('id', body)
         image_id = body.get('id')
         self.assertEqual('New Http Image', body.get('name'))
         self.assertFalse(body.get('is_public'))
         self.client.wait_for_image_status(image_id, 'active')
-        resp, body = self.client.get_image(image_id)
-        self.assertEqual(resp['status'], '200')
+        self.client.get_image(image_id)
 
     @test.attr(type='gate')
     def test_register_image_with_min_ram(self):
         # Register an image with min ram
         properties = {'prop1': 'val1'}
-        resp, body = self.create_image(name='New_image_with_min_ram',
-                                       container_format='bare',
-                                       disk_format='raw',
-                                       is_public=False,
-                                       min_ram=40,
-                                       properties=properties)
+        _, body = self.create_image(name='New_image_with_min_ram',
+                                    container_format='bare',
+                                    disk_format='raw',
+                                    is_public=False,
+                                    min_ram=40,
+                                    properties=properties)
         self.assertIn('id', body)
         self.assertEqual('New_image_with_min_ram', body.get('name'))
         self.assertFalse(body.get('is_public'))
@@ -97,8 +96,7 @@
         self.assertEqual(40, body.get('min_ram'))
         for key, val in properties.items():
             self.assertEqual(val, body.get('properties')[key])
-        resp, body = self.client.delete_image(body['id'])
-        self.assertEqual('200', resp['status'])
+        self.client.delete_image(body['id'])
 
 
 class ListImagesTest(base.BaseV1ImageTest):
@@ -143,11 +141,11 @@
         """
         name = 'New Remote Image %s' % name
         location = CONF.image.http_image
-        resp, image = cls.create_image(name=name,
-                                       container_format=container_format,
-                                       disk_format=disk_format,
-                                       is_public=False,
-                                       location=location)
+        _, image = cls.create_image(name=name,
+                                    container_format=container_format,
+                                    disk_format=disk_format,
+                                    is_public=False,
+                                    location=location)
         image_id = image['id']
         return image_id
 
@@ -161,26 +159,24 @@
         """
         image_file = StringIO.StringIO('*' * size)
         name = 'New Standard Image %s' % name
-        resp, image = cls.create_image(name=name,
-                                       container_format=container_format,
-                                       disk_format=disk_format,
-                                       is_public=False, data=image_file)
+        _, image = cls.create_image(name=name,
+                                    container_format=container_format,
+                                    disk_format=disk_format,
+                                    is_public=False, data=image_file)
         image_id = image['id']
         return image_id
 
     @test.attr(type='gate')
     def test_index_no_params(self):
         # Simple test to see all fixture images returned
-        resp, images_list = self.client.image_list()
-        self.assertEqual(resp['status'], '200')
+        _, images_list = self.client.image_list()
         image_list = map(lambda x: x['id'], images_list)
         for image_id in self.created_images:
             self.assertIn(image_id, image_list)
 
     @test.attr(type='gate')
     def test_index_disk_format(self):
-        resp, images_list = self.client.image_list(disk_format='ami')
-        self.assertEqual(resp['status'], '200')
+        _, images_list = self.client.image_list(disk_format='ami')
         for image in images_list:
             self.assertEqual(image['disk_format'], 'ami')
         result_set = set(map(lambda x: x['id'], images_list))
@@ -189,8 +185,7 @@
 
     @test.attr(type='gate')
     def test_index_container_format(self):
-        resp, images_list = self.client.image_list(container_format='bare')
-        self.assertEqual(resp['status'], '200')
+        _, images_list = self.client.image_list(container_format='bare')
         for image in images_list:
             self.assertEqual(image['container_format'], 'bare')
         result_set = set(map(lambda x: x['id'], images_list))
@@ -199,8 +194,7 @@
 
     @test.attr(type='gate')
     def test_index_max_size(self):
-        resp, images_list = self.client.image_list(size_max=42)
-        self.assertEqual(resp['status'], '200')
+        _, images_list = self.client.image_list(size_max=42)
         for image in images_list:
             self.assertTrue(image['size'] <= 42)
         result_set = set(map(lambda x: x['id'], images_list))
@@ -209,8 +203,7 @@
 
     @test.attr(type='gate')
     def test_index_min_size(self):
-        resp, images_list = self.client.image_list(size_min=142)
-        self.assertEqual(resp['status'], '200')
+        _, images_list = self.client.image_list(size_min=142)
         for image in images_list:
             self.assertTrue(image['size'] >= 142)
         result_set = set(map(lambda x: x['id'], images_list))
@@ -219,10 +212,9 @@
 
     @test.attr(type='gate')
     def test_index_status_active_detail(self):
-        resp, images_list = self.client.image_list_detail(status='active',
-                                                          sort_key='size',
-                                                          sort_dir='desc')
-        self.assertEqual(resp['status'], '200')
+        _, images_list = self.client.image_list_detail(status='active',
+                                                       sort_key='size',
+                                                       sort_dir='desc')
         top_size = images_list[0]['size']  # We have non-zero sized images
         for image in images_list:
             size = image['size']
@@ -232,9 +224,8 @@
 
     @test.attr(type='gate')
     def test_index_name(self):
-        resp, images_list = self.client.image_list_detail(
+        _, images_list = self.client.image_list_detail(
             name='New Remote Image dup')
-        self.assertEqual(resp['status'], '200')
         result_set = set(map(lambda x: x['id'], images_list))
         for image in images_list:
             self.assertEqual(image['name'], 'New Remote Image dup')
@@ -266,10 +257,10 @@
         cls.snapshot_set = set((cls.snapshot,))
 
         image_file = StringIO.StringIO('*' * 42)
-        resp, image = cls.create_image(name="Standard Image",
-                                       container_format='ami',
-                                       disk_format='ami',
-                                       is_public=False, data=image_file)
+        _, image = cls.create_image(name="Standard Image",
+                                    container_format='ami',
+                                    disk_format='ami',
+                                    is_public=False, data=image_file)
         cls.image_id = image['id']
         cls.client.wait_for_image_status(image['id'], 'active')
 
@@ -281,7 +272,7 @@
 
     @classmethod
     def _create_snapshot(cls, name, image_id, flavor, **kwargs):
-        resp, server = cls.servers_client.create_server(
+        _, server = cls.servers_client.create_server(
             name, image_id, flavor, **kwargs)
         cls.servers.append(server)
         cls.servers_client.wait_for_server_status(
@@ -297,9 +288,8 @@
     @test.services('compute')
     def test_index_server_id(self):
         # The images should contain images filtered by server id
-        resp, images = self.client.image_list_detail(
+        _, images = self.client.image_list_detail(
             {'instance_uuid': self.servers[0]['id']})
-        self.assertEqual(200, resp.status)
         result_set = set(map(lambda x: x['id'], images))
         self.assertEqual(self.snapshot_set, result_set)
 
@@ -308,9 +298,8 @@
     def test_index_type(self):
         # The list of servers should be filtered by image type
         params = {'image_type': 'snapshot'}
-        resp, images = self.client.image_list_detail(params)
+        _, images = self.client.image_list_detail(params)
 
-        self.assertEqual(200, resp.status)
         result_set = set(map(lambda x: x['id'], images))
         self.assertIn(self.snapshot, result_set)
 
@@ -318,9 +307,8 @@
     @test.services('compute')
     def test_index_limit(self):
         # Verify only the expected number of results are returned
-        resp, images = self.client.image_list_detail(limit=1)
+        _, images = self.client.image_list_detail(limit=1)
 
-        self.assertEqual(200, resp.status)
         self.assertEqual(1, len(images))
 
     @test.attr(type='gate')
@@ -329,13 +317,11 @@
         # Verify an update image is returned
         # Becoming ACTIVE will modify the updated time
         # Filter by the image's created time
-        resp, image = self.client.get_image_meta(self.snapshot)
-        self.assertEqual(200, resp.status)
+        _, image = self.client.get_image_meta(self.snapshot)
         self.assertEqual(self.snapshot, image['id'])
-        resp, images = self.client.image_list_detail(
+        _, images = self.client.image_list_detail(
             changes_since=image['updated_at'])
 
-        self.assertEqual(200, resp.status)
         result_set = set(map(lambda x: x['id'], images))
         self.assertIn(self.image_id, result_set)
         self.assertNotIn(self.snapshot, result_set)
@@ -357,18 +343,18 @@
         """
         image_file = StringIO.StringIO('*' * size)
         name = 'New Standard Image %s' % name
-        resp, image = cls.create_image(name=name,
-                                       container_format=container_format,
-                                       disk_format=disk_format,
-                                       is_public=False, data=image_file,
-                                       properties={'key1': 'value1'})
+        _, image = cls.create_image(name=name,
+                                    container_format=container_format,
+                                    disk_format=disk_format,
+                                    is_public=False, data=image_file,
+                                    properties={'key1': 'value1'})
         image_id = image['id']
         return image_id
 
     @test.attr(type='gate')
     def test_list_image_metadata(self):
         # All metadata key/value pairs for an image should be returned
-        resp, resp_metadata = self.client.get_image_meta(self.image_id)
+        _, resp_metadata = self.client.get_image_meta(self.image_id)
         expected = {'key1': 'value1'}
         self.assertEqual(expected, resp_metadata['properties'])
 
@@ -376,13 +362,12 @@
     def test_update_image_metadata(self):
         # The metadata for the image should match the updated values
         req_metadata = {'key1': 'alt1', 'key2': 'value2'}
-        resp, metadata = self.client.get_image_meta(self.image_id)
-        self.assertEqual(200, resp.status)
+        _, metadata = self.client.get_image_meta(self.image_id)
         self.assertEqual(metadata['properties'], {'key1': 'value1'})
         metadata['properties'].update(req_metadata)
-        resp, metadata = self.client.update_image(
+        _, metadata = self.client.update_image(
             self.image_id, properties=metadata['properties'])
 
-        resp, resp_metadata = self.client.get_image_meta(self.image_id)
+        _, resp_metadata = self.client.get_image_meta(self.image_id)
         expected = {'key1': 'alt1', 'key2': 'value2'}
         self.assertEqual(expected, resp_metadata['properties'])
diff --git a/tempest/api/image/v2/test_images.py b/tempest/api/image/v2/test_images.py
index 37dc163..ae777eb 100644
--- a/tempest/api/image/v2/test_images.py
+++ b/tempest/api/image/v2/test_images.py
@@ -37,11 +37,11 @@
 
         uuid = '00000000-1111-2222-3333-444455556666'
         image_name = data_utils.rand_name('image')
-        resp, body = self.create_image(name=image_name,
-                                       container_format='bare',
-                                       disk_format='raw',
-                                       visibility='private',
-                                       ramdisk_id=uuid)
+        _, body = self.create_image(name=image_name,
+                                    container_format='bare',
+                                    disk_format='raw',
+                                    visibility='private',
+                                    ramdisk_id=uuid)
         self.assertIn('id', body)
         image_id = body.get('id')
         self.assertIn('name', body)
@@ -54,12 +54,10 @@
         # Now try uploading an image file
         file_content = '*' * 1024
         image_file = StringIO.StringIO(file_content)
-        resp, body = self.client.store_image(image_id, image_file)
-        self.assertEqual(resp.status, 204)
+        self.client.store_image(image_id, image_file)
 
         # Now try to get image details
-        resp, body = self.client.get_image(image_id)
-        self.assertEqual(200, resp.status)
+        _, body = self.client.get_image(image_id)
         self.assertEqual(image_id, body['id'])
         self.assertEqual(image_name, body['name'])
         self.assertEqual(uuid, body['ramdisk_id'])
@@ -67,8 +65,7 @@
         self.assertEqual(1024, body.get('size'))
 
         # Now try get image file
-        resp, body = self.client.get_image_file(image_id)
-        self.assertEqual(200, resp.status)
+        _, body = self.client.get_image_file(image_id)
         self.assertEqual(file_content, body)
 
     @test.attr(type='gate')
@@ -77,11 +74,10 @@
 
         # Create image
         image_name = data_utils.rand_name('image')
-        resp, body = self.client.create_image(name=image_name,
-                                              container_format='bare',
-                                              disk_format='raw',
-                                              visibility='private')
-        self.assertEqual(201, resp.status)
+        _, body = self.client.create_image(name=image_name,
+                                           container_format='bare',
+                                           disk_format='raw',
+                                           visibility='private')
         image_id = body['id']
 
         # Delete Image
@@ -89,8 +85,7 @@
         self.client.wait_for_resource_deletion(image_id)
 
         # Verifying deletion
-        resp, images = self.client.image_list()
-        self.assertEqual(resp.status, 200)
+        _, images = self.client.image_list()
         self.assertNotIn(image_id, images)
 
     @test.attr(type='gate')
@@ -99,11 +94,10 @@
 
         # Create image
         image_name = data_utils.rand_name('image')
-        resp, body = self.client.create_image(name=image_name,
-                                              container_format='bare',
-                                              disk_format='iso',
-                                              visibility='private')
-        self.assertEqual(201, resp.status)
+        _, body = self.client.create_image(name=image_name,
+                                           container_format='bare',
+                                           disk_format='iso',
+                                           visibility='private')
         self.addCleanup(self.client.delete_image, body['id'])
         self.assertEqual('queued', body['status'])
         image_id = body['id']
@@ -111,20 +105,16 @@
         # Now try uploading an image file
         file_content = '*' * 1024
         image_file = StringIO.StringIO(file_content)
-        resp, body = self.client.store_image(image_id, image_file)
-        self.assertEqual(204, resp.status)
+        self.client.store_image(image_id, image_file)
 
         # Update Image
         new_image_name = data_utils.rand_name('new-image')
-        resp, body = self.client.update_image(image_id, [
+        _, body = self.client.update_image(image_id, [
             dict(replace='/name', value=new_image_name)])
 
-        self.assertEqual(200, resp.status)
-
         # Verifying updating
 
-        resp, body = self.client.get_image(image_id)
-        self.assertEqual(200, resp.status)
+        _, body = self.client.get_image(image_id)
         self.assertEqual(image_id, body['id'])
         self.assertEqual(new_image_name, body['name'])
 
@@ -157,12 +147,12 @@
         """
         image_file = StringIO.StringIO('*' * random.randint(1024, 4096))
         name = data_utils.rand_name('image-')
-        resp, body = cls.create_image(name=name,
-                                      container_format=container_format,
-                                      disk_format=disk_format,
-                                      visibility='private')
+        _, body = cls.create_image(name=name,
+                                   container_format=container_format,
+                                   disk_format=disk_format,
+                                   visibility='private')
         image_id = body['id']
-        resp, body = cls.client.store_image(image_id, data=image_file)
+        cls.client.store_image(image_id, data=image_file)
 
         return image_id
 
@@ -170,8 +160,7 @@
         """
         Perform list action with given params and validates result.
         """
-        resp, images_list = self.client.image_list(params=params)
-        self.assertEqual(200, resp.status)
+        _, images_list = self.client.image_list(params=params)
         # Validating params of fetched images
         for image in images_list:
             for key in params:
@@ -181,8 +170,7 @@
     @test.attr(type='gate')
     def test_index_no_params(self):
         # Simple test to see all fixture images returned
-        resp, images_list = self.client.image_list()
-        self.assertEqual(resp['status'], '200')
+        _, images_list = self.client.image_list()
         image_list = map(lambda x: x['id'], images_list)
 
         for image in self.created_images:
@@ -211,8 +199,7 @@
         # Test to get all images by size
         image_id = self.created_images[1]
         # Get image metadata
-        resp, image = self.client.get_image(image_id)
-        self.assertEqual(resp['status'], '200')
+        _, image = self.client.get_image(image_id)
 
         params = {"size": image['size']}
         self._list_by_param_value_and_assert(params)
@@ -222,13 +209,11 @@
         # Test to get all images with size between 2000 to 3000
         image_id = self.created_images[1]
         # Get image metadata
-        resp, image = self.client.get_image(image_id)
-        self.assertEqual(resp['status'], '200')
+        _, image = self.client.get_image(image_id)
 
         size = image['size']
         params = {"size_min": size - 500, "size_max": size + 500}
-        resp, images_list = self.client.image_list(params=params)
-        self.assertEqual(resp['status'], '200')
+        _, images_list = self.client.image_list(params=params)
         image_size_list = map(lambda x: x['size'], images_list)
 
         for image_size in image_size_list:
@@ -246,8 +231,7 @@
     def test_list_images_param_limit(self):
         # Test to get images by limit
         params = {"limit": 2}
-        resp, images_list = self.client.image_list(params=params)
-        self.assertEqual(resp['status'], '200')
+        _, images_list = self.client.image_list(params=params)
 
         self.assertEqual(len(images_list), params['limit'],
                          "Failed to get images by limit")
@@ -256,14 +240,12 @@
     def test_get_image_schema(self):
         # Test to get image schema
         schema = "image"
-        resp, body = self.client.get_schema(schema)
-        self.assertEqual(200, resp.status)
+        _, body = self.client.get_schema(schema)
         self.assertEqual("image", body['name'])
 
     @test.attr(type='gate')
     def test_get_images_schema(self):
         # Test to get images schema
         schema = "images"
-        resp, body = self.client.get_schema(schema)
-        self.assertEqual(200, resp.status)
+        _, body = self.client.get_schema(schema)
         self.assertEqual("images", body['name'])
diff --git a/tempest/api/image/v2/test_images_member.py b/tempest/api/image/v2/test_images_member.py
index f80c818..5aaf578 100644
--- a/tempest/api/image/v2/test_images_member.py
+++ b/tempest/api/image/v2/test_images_member.py
@@ -20,9 +20,8 @@
     @test.attr(type='gate')
     def test_image_share_accept(self):
         image_id = self._create_image()
-        resp, member = self.os_img_client.add_member(image_id,
-                                                     self.alt_tenant_id)
-        self.assertEqual(200, resp.status)
+        _, member = self.os_img_client.add_member(image_id,
+                                                  self.alt_tenant_id)
         self.assertEqual(member['member_id'], self.alt_tenant_id)
         self.assertEqual(member['image_id'], image_id)
         self.assertEqual(member['status'], 'pending')
@@ -31,8 +30,7 @@
                                                  self.alt_tenant_id,
                                                  'accepted')
         self.assertIn(image_id, self._list_image_ids_as_alt())
-        resp, body = self.os_img_client.get_image_membership(image_id)
-        self.assertEqual(200, resp.status)
+        _, body = self.os_img_client.get_image_membership(image_id)
         members = body['members']
         member = members[0]
         self.assertEqual(len(members), 1, str(members))
@@ -43,17 +41,15 @@
     @test.attr(type='gate')
     def test_image_share_reject(self):
         image_id = self._create_image()
-        resp, member = self.os_img_client.add_member(image_id,
-                                                     self.alt_tenant_id)
-        self.assertEqual(200, resp.status)
+        _, member = self.os_img_client.add_member(image_id,
+                                                  self.alt_tenant_id)
         self.assertEqual(member['member_id'], self.alt_tenant_id)
         self.assertEqual(member['image_id'], image_id)
         self.assertEqual(member['status'], 'pending')
         self.assertNotIn(image_id, self._list_image_ids_as_alt())
-        resp, _ = self.alt_img_client.update_member_status(image_id,
-                                                           self.alt_tenant_id,
-                                                           'rejected')
-        self.assertEqual(200, resp.status)
+        self.alt_img_client.update_member_status(image_id,
+                                                 self.alt_tenant_id,
+                                                 'rejected')
         self.assertNotIn(image_id, self._list_image_ids_as_alt())
 
     @test.attr(type='gate')
@@ -66,9 +62,8 @@
                                                  'accepted')
 
         self.assertIn(image_id, self._list_image_ids_as_alt())
-        resp, member = self.os_img_client.get_member(image_id,
-                                                     self.alt_tenant_id)
-        self.assertEqual(200, resp.status)
+        _, member = self.os_img_client.get_member(image_id,
+                                                  self.alt_tenant_id)
         self.assertEqual(self.alt_tenant_id, member['member_id'])
         self.assertEqual(image_id, member['image_id'])
         self.assertEqual('accepted', member['status'])
@@ -83,18 +78,15 @@
                                                  'accepted')
 
         self.assertIn(image_id, self._list_image_ids_as_alt())
-        resp = self.os_img_client.remove_member(image_id, self.alt_tenant_id)
-        self.assertEqual(204, resp.status)
+        self.os_img_client.remove_member(image_id, self.alt_tenant_id)
         self.assertNotIn(image_id, self._list_image_ids_as_alt())
 
     @test.attr(type='gate')
     def test_get_image_member_schema(self):
-        resp, body = self.os_img_client.get_schema("member")
-        self.assertEqual(200, resp.status)
+        _, body = self.os_img_client.get_schema("member")
         self.assertEqual("member", body['name'])
 
     @test.attr(type='gate')
     def test_get_image_members_schema(self):
-        resp, body = self.os_img_client.get_schema("members")
-        self.assertEqual(200, resp.status)
+        _, body = self.os_img_client.get_schema("members")
         self.assertEqual("members", body['name'])
diff --git a/tempest/api/image/v2/test_images_member_negative.py b/tempest/api/image/v2/test_images_member_negative.py
index 98ef649..7da6e65 100644
--- a/tempest/api/image/v2/test_images_member_negative.py
+++ b/tempest/api/image/v2/test_images_member_negative.py
@@ -21,8 +21,8 @@
     @test.attr(type=['negative', 'gate'])
     def test_image_share_invalid_status(self):
         image_id = self._create_image()
-        resp, member = self.os_img_client.add_member(image_id,
-                                                     self.alt_tenant_id)
+        _, member = self.os_img_client.add_member(image_id,
+                                                  self.alt_tenant_id)
         self.assertEqual(member['status'], 'pending')
         self.assertRaises(exceptions.BadRequest,
                           self.alt_img_client.update_member_status,
@@ -31,8 +31,8 @@
     @test.attr(type=['negative', 'gate'])
     def test_image_share_owner_cannot_accept(self):
         image_id = self._create_image()
-        resp, member = self.os_img_client.add_member(image_id,
-                                                     self.alt_tenant_id)
+        _, member = self.os_img_client.add_member(image_id,
+                                                  self.alt_tenant_id)
         self.assertEqual(member['status'], 'pending')
         self.assertNotIn(image_id, self._list_image_ids_as_alt())
         self.assertRaises(exceptions.Unauthorized,
diff --git a/tempest/api/image/v2/test_images_negative.py b/tempest/api/image/v2/test_images_negative.py
index 27ba39c..722929e 100644
--- a/tempest/api/image/v2/test_images_negative.py
+++ b/tempest/api/image/v2/test_images_negative.py
@@ -52,11 +52,10 @@
     def test_get_delete_deleted_image(self):
         # get and delete the deleted image
         # create and delete image
-        resp, body = self.client.create_image(name='test',
-                                              container_format='bare',
-                                              disk_format='raw')
+        _, body = self.client.create_image(name='test',
+                                           container_format='bare',
+                                           disk_format='raw')
         image_id = body['id']
-        self.assertEqual(201, resp.status)
         self.client.delete_image(image_id)
         self.client.wait_for_resource_deletion(image_id)
 
diff --git a/tempest/api/image/v2/test_images_tags.py b/tempest/api/image/v2/test_images_tags.py
index dec3353..a9db24b 100644
--- a/tempest/api/image/v2/test_images_tags.py
+++ b/tempest/api/image/v2/test_images_tags.py
@@ -21,23 +21,19 @@
 
     @test.attr(type='gate')
     def test_update_delete_tags_for_image(self):
-        resp, body = self.create_image(container_format='bare',
-                                       disk_format='raw',
-                                       visibility='private')
+        _, body = self.create_image(container_format='bare',
+                                    disk_format='raw',
+                                    visibility='private')
         image_id = body['id']
         tag = data_utils.rand_name('tag-')
         self.addCleanup(self.client.delete_image, image_id)
 
         # Creating image tag and verify it.
-        resp, body = self.client.add_image_tag(image_id, tag)
-        self.assertEqual(resp.status, 204)
-        resp, body = self.client.get_image(image_id)
-        self.assertEqual(resp.status, 200)
+        self.client.add_image_tag(image_id, tag)
+        _, body = self.client.get_image(image_id)
         self.assertIn(tag, body['tags'])
 
         # Deleting image tag and verify it.
-        resp = self.client.delete_image_tag(image_id, tag)
-        self.assertEqual(resp.status, 204)
-        resp, body = self.client.get_image(image_id)
-        self.assertEqual(resp.status, 200)
+        self.client.delete_image_tag(image_id, tag)
+        _, body = self.client.get_image(image_id)
         self.assertNotIn(tag, body['tags'])
diff --git a/tempest/api/image/v2/test_images_tags_negative.py b/tempest/api/image/v2/test_images_tags_negative.py
index 13cfa0a..8e42b7c 100644
--- a/tempest/api/image/v2/test_images_tags_negative.py
+++ b/tempest/api/image/v2/test_images_tags_negative.py
@@ -33,10 +33,10 @@
     @test.attr(type=['negative', 'gate'])
     def test_delete_non_existing_tag(self):
         # Delete non existing tag.
-        resp, body = self.create_image(container_format='bare',
-                                       disk_format='raw',
-                                       visibility='private'
-                                       )
+        _, body = self.create_image(container_format='bare',
+                                    disk_format='raw',
+                                    visibility='private'
+                                    )
         image_id = body['id']
         tag = data_utils.rand_name('non-exist-tag-')
         self.addCleanup(self.client.delete_image, image_id)
diff --git a/tempest/services/image/v1/json/image_client.py b/tempest/services/image/v1/json/image_client.py
index e22cd9c..2353908 100644
--- a/tempest/services/image/v1/json/image_client.py
+++ b/tempest/services/image/v1/json/image_client.py
@@ -153,6 +153,7 @@
             return self._create_with_data(headers, kwargs.get('data'))
 
         resp, body = self.post('v1/images', None, headers)
+        self.expected_success(201, resp.status)
         body = json.loads(body)
         return resp, body['image']
 
@@ -176,12 +177,15 @@
 
         url = 'v1/images/%s' % image_id
         resp, body = self.put(url, data, headers)
+        self.expected_success(200, resp.status)
         body = json.loads(body)
         return resp, body['image']
 
     def delete_image(self, image_id):
         url = 'v1/images/%s' % image_id
-        return self.delete(url)
+        resp, body = self.delete(url)
+        self.expected_success(200, resp.status)
+        return resp, body
 
     def image_list(self, **kwargs):
         url = 'v1/images'
@@ -190,6 +194,7 @@
             url += '?%s' % urllib.urlencode(kwargs)
 
         resp, body = self.get(url)
+        self.expected_success(200, resp.status)
         body = json.loads(body)
         return resp, body['images']
 
@@ -210,18 +215,21 @@
             url += '?%s' % urllib.urlencode(kwargs)
 
         resp, body = self.get(url)
+        self.expected_success(200, resp.status)
         body = json.loads(body)
         return resp, body['images']
 
     def get_image_meta(self, image_id):
         url = 'v1/images/%s' % image_id
         resp, __ = self.head(url)
+        self.expected_success(200, resp.status)
         body = self._image_meta_from_headers(resp)
         return resp, body
 
     def get_image(self, image_id):
         url = 'v1/images/%s' % image_id
         resp, body = self.get(url)
+        self.expected_success(200, resp.status)
         return resp, body
 
     def is_resource_deleted(self, id):
@@ -234,12 +242,14 @@
     def get_image_membership(self, image_id):
         url = 'v1/images/%s/members' % image_id
         resp, body = self.get(url)
+        self.expected_success(200, resp.status)
         body = json.loads(body)
         return resp, body
 
     def get_shared_images(self, member_id):
         url = 'v1/shared-images/%s' % member_id
         resp, body = self.get(url)
+        self.expected_success(200, resp.status)
         body = json.loads(body)
         return resp, body
 
@@ -249,20 +259,15 @@
         if can_share:
             body = json.dumps({'member': {'can_share': True}})
         resp, __ = self.put(url, body)
+        self.expected_success(204, resp.status)
         return resp
 
     def delete_member(self, member_id, image_id):
         url = 'v1/images/%s/members/%s' % (image_id, member_id)
         resp, __ = self.delete(url)
+        self.expected_success(204, resp.status)
         return resp
 
-    def replace_membership_list(self, image_id, member_list):
-        url = 'v1/images/%s/members' % image_id
-        body = json.dumps({'membership': member_list})
-        resp, data = self.put(url, body)
-        data = json.loads(data)
-        return resp, data
-
     # NOTE(afazekas): just for the wait function
     def _get_image_status(self, image_id):
         resp, meta = self.get_image_meta(image_id)
diff --git a/tempest/services/image/v2/json/image_client.py b/tempest/services/image/v2/json/image_client.py
index 201869e..c420df9 100644
--- a/tempest/services/image/v2/json/image_client.py
+++ b/tempest/services/image/v2/json/image_client.py
@@ -61,6 +61,7 @@
         headers = {"Content-Type": "application/openstack-images-v2.0"
                                    "-json-patch"}
         resp, body = self.patch('v2/images/%s' % image_id, data, headers)
+        self.expected_success(200, resp.status)
         return resp, self._parse_resp(body)
 
     def create_image(self, name, container_format, disk_format, **kwargs):
@@ -81,12 +82,14 @@
         self._validate_schema(data)
 
         resp, body = self.post('v2/images', data)
+        self.expected_success(201, resp.status)
         body = json.loads(body)
         return resp, body
 
     def delete_image(self, image_id):
         url = 'v2/images/%s' % image_id
-        self.delete(url)
+        resp, _ = self.delete(url)
+        self.expected_success(204, resp.status)
 
     def image_list(self, params=None):
         url = 'v2/images'
@@ -95,6 +98,7 @@
             url += '?%s' % urllib.urlencode(params)
 
         resp, body = self.get(url)
+        self.expected_success(200, resp.status)
         body = json.loads(body)
         self._validate_schema(body, type='images')
         return resp, body['images']
@@ -102,6 +106,7 @@
     def get_image(self, image_id):
         url = 'v2/images/%s' % image_id
         resp, body = self.get(url)
+        self.expected_success(200, resp.status)
         body = json.loads(body)
         return resp, body
 
@@ -117,36 +122,40 @@
         headers = {'Content-Type': 'application/octet-stream'}
         resp, body = self.http.raw_request('PUT', url, headers=headers,
                                            body=data)
+        self.expected_success(204, resp.status)
         return resp, body
 
     def get_image_file(self, image_id):
         url = 'v2/images/%s/file' % image_id
         resp, body = self.get(url)
+        self.expected_success(200, resp.status)
         return resp, body
 
     def add_image_tag(self, image_id, tag):
         url = 'v2/images/%s/tags/%s' % (image_id, tag)
         resp, body = self.put(url, body=None)
+        self.expected_success(204, resp.status)
         return resp, body
 
     def delete_image_tag(self, image_id, tag):
         url = 'v2/images/%s/tags/%s' % (image_id, tag)
         resp, _ = self.delete(url)
+        self.expected_success(204, resp.status)
         return resp
 
     def get_image_membership(self, image_id):
         url = 'v2/images/%s/members' % image_id
         resp, body = self.get(url)
+        self.expected_success(200, resp.status)
         body = json.loads(body)
-        self.expected_success(200, resp)
         return resp, body
 
     def add_member(self, image_id, member_id):
         url = 'v2/images/%s/members' % image_id
         data = json.dumps({'member': member_id})
         resp, body = self.post(url, data)
+        self.expected_success(200, resp.status)
         body = json.loads(body)
-        self.expected_success(200, resp)
         return resp, body
 
     def update_member_status(self, image_id, member_id, status):
@@ -154,24 +163,25 @@
         url = 'v2/images/%s/members/%s' % (image_id, member_id)
         data = json.dumps({'status': status})
         resp, body = self.put(url, data)
+        self.expected_success(200, resp.status)
         body = json.loads(body)
-        self.expected_success(200, resp)
         return resp, body
 
     def get_member(self, image_id, member_id):
         url = 'v2/images/%s/members/%s' % (image_id, member_id)
         resp, body = self.get(url)
-        self.expected_success(200, resp)
+        self.expected_success(200, resp.status)
         return resp, json.loads(body)
 
     def remove_member(self, image_id, member_id):
         url = 'v2/images/%s/members/%s' % (image_id, member_id)
         resp, _ = self.delete(url)
-        self.expected_success(204, resp)
+        self.expected_success(204, resp.status)
         return resp
 
     def get_schema(self, schema):
         url = 'v2/schemas/%s' % schema
         resp, body = self.get(url)
+        self.expected_success(200, resp.status)
         body = json.loads(body)
         return resp, body