diff --git a/tempest/api/compute/volumes/test_volumes_get.py b/tempest/api/compute/volumes/test_volumes_get.py
index d96dcc2..efacbda 100644
--- a/tempest/api/compute/volumes/test_volumes_get.py
+++ b/tempest/api/compute/volumes/test_volumes_get.py
@@ -58,7 +58,7 @@
         # Wait for Volume status to become ACTIVE
         self.client.wait_for_volume_status(volume['id'], 'available')
         # GET Volume
-        fetched_volume = self.client.get_volume(volume['id'])
+        fetched_volume = self.client.show_volume(volume['id'])
         # Verification of details of fetched Volume
         self.assertEqual(v_name,
                          fetched_volume['displayName'],
diff --git a/tempest/api/compute/volumes/test_volumes_list.py b/tempest/api/compute/volumes/test_volumes_list.py
index fdece0c..93fabc8 100644
--- a/tempest/api/compute/volumes/test_volumes_list.py
+++ b/tempest/api/compute/volumes/test_volumes_list.py
@@ -57,7 +57,7 @@
                 volume = cls.client.create_volume(display_name=v_name,
                                                   metadata=metadata)
                 cls.client.wait_for_volume_status(volume['id'], 'available')
-                volume = cls.client.get_volume(volume['id'])
+                volume = cls.client.show_volume(volume['id'])
                 cls.volume_list.append(volume)
                 cls.volume_id_list.append(volume['id'])
             except Exception:
@@ -102,7 +102,7 @@
     def test_volume_list_with_details(self):
         # Should return the list of Volumes with details
         # Fetch all Volumes
-        fetched_list = self.client.list_volumes_with_detail()
+        fetched_list = self.client.list_volumes(detail=True)
         # Now check if all the Volumes created in setup are in fetched list
         missing_volumes = [
             v for v in self.volume_list if v not in fetched_list
@@ -117,7 +117,7 @@
     def test_volume_list_param_limit(self):
         # Return the list of volumes based on limit set
         params = {'limit': 2}
-        fetched_vol_list = self.client.list_volumes(params=params)
+        fetched_vol_list = self.client.list_volumes(**params)
 
         self.assertEqual(len(fetched_vol_list), params['limit'],
                          "Failed to list volumes by limit set")
@@ -126,7 +126,7 @@
     def test_volume_list_with_detail_param_limit(self):
         # Return the list of volumes with details based on limit set.
         params = {'limit': 2}
-        fetched_vol_list = self.client.list_volumes_with_detail(params=params)
+        fetched_vol_list = self.client.list_volumes(detail=True, **params)
 
         self.assertEqual(len(fetched_vol_list), params['limit'],
                          "Failed to list volume details by limit set")
@@ -137,7 +137,7 @@
         # get all volumes list
         all_vol_list = self.client.list_volumes()
         params = {'offset': 1, 'limit': 1}
-        fetched_vol_list = self.client.list_volumes(params=params)
+        fetched_vol_list = self.client.list_volumes(**params)
 
         # Validating length of the fetched volumes
         self.assertEqual(len(fetched_vol_list), params['limit'],
@@ -152,9 +152,9 @@
     def test_volume_list_with_detail_param_offset_and_limit(self):
         # Return the list of volumes details based on offset and limit set.
         # get all volumes list
-        all_vol_list = self.client.list_volumes_with_detail()
+        all_vol_list = self.client.list_volumes(detail=True)
         params = {'offset': 1, 'limit': 1}
-        fetched_vol_list = self.client.list_volumes_with_detail(params=params)
+        fetched_vol_list = self.client.list_volumes(detail=True, **params)
 
         # Validating length of the fetched volumes
         self.assertEqual(len(fetched_vol_list), params['limit'],
diff --git a/tempest/api/compute/volumes/test_volumes_negative.py b/tempest/api/compute/volumes/test_volumes_negative.py
index 65d9def..592e5a7 100644
--- a/tempest/api/compute/volumes/test_volumes_negative.py
+++ b/tempest/api/compute/volumes/test_volumes_negative.py
@@ -45,7 +45,7 @@
         # Negative: Should not be able to get details of nonexistent volume
         # Creating a nonexistent volume id
         # Trying to GET a non existent volume
-        self.assertRaises(lib_exc.NotFound, self.client.get_volume,
+        self.assertRaises(lib_exc.NotFound, self.client.show_volume,
                           str(uuid.uuid4()))
 
     @test.attr(type=['negative'])
@@ -91,13 +91,13 @@
     def test_get_invalid_volume_id(self):
         # Negative: Should not be able to get volume with invalid id
         self.assertRaises(lib_exc.NotFound,
-                          self.client.get_volume, '#$%%&^&^')
+                          self.client.show_volume, '#$%%&^&^')
 
     @test.attr(type=['negative'])
     @test.idempotent_id('62bab09a-4c03-4617-8cca-8572bc94af9b')
     def test_get_volume_without_passing_volume_id(self):
         # Negative: Should not be able to get volume when empty ID is passed
-        self.assertRaises(lib_exc.NotFound, self.client.get_volume, '')
+        self.assertRaises(lib_exc.NotFound, self.client.show_volume, '')
 
     @test.attr(type=['negative'])
     @test.idempotent_id('62972737-124b-4513-b6cf-2f019f178494')
diff --git a/tempest/services/compute/json/volumes_extensions_client.py b/tempest/services/compute/json/volumes_extensions_client.py
index 4d7a7aa..b6f1124 100644
--- a/tempest/services/compute/json/volumes_extensions_client.py
+++ b/tempest/services/compute/json/volumes_extensions_client.py
@@ -32,9 +32,12 @@
             auth_provider, service, region, **kwargs)
         self.default_volume_size = default_volume_size
 
-    def list_volumes(self, params=None):
+    def list_volumes(self, detail=False, **params):
         """List all the volumes created."""
         url = 'os-volumes'
+
+        if detail:
+            url += '/detail'
         if params:
             url += '?%s' % urllib.urlencode(params)
 
@@ -43,20 +46,9 @@
         self.validate_response(schema.list_volumes, resp, body)
         return service_client.ResponseBodyList(resp, body['volumes'])
 
-    def list_volumes_with_detail(self, params=None):
-        """List all the details of volumes."""
-        url = 'os-volumes/detail'
-        if params:
-            url += '?%s' % urllib.urlencode(params)
-
-        resp, body = self.get(url)
-        body = json.loads(body)
-        self.validate_response(schema.list_volumes, resp, body)
-        return service_client.ResponseBodyList(resp, body['volumes'])
-
-    def get_volume(self, volume_id):
+    def show_volume(self, volume_id):
         """Returns the details of a single volume."""
-        url = "os-volumes/%s" % str(volume_id)
+        url = "os-volumes/%s" % volume_id
         resp, body = self.get(url)
         body = json.loads(body)
         self.validate_response(schema.create_get_volume, resp, body)
@@ -85,19 +77,19 @@
 
     def delete_volume(self, volume_id):
         """Deletes the Specified Volume."""
-        resp, body = self.delete("os-volumes/%s" % str(volume_id))
+        resp, body = self.delete("os-volumes/%s" % volume_id)
         self.validate_response(schema.delete_volume, resp, body)
         return service_client.ResponseBody(resp, body)
 
     def wait_for_volume_status(self, volume_id, status):
         """Waits for a Volume to reach a given status."""
-        body = self.get_volume(volume_id)
+        body = self.show_volume(volume_id)
         volume_status = body['status']
         start = int(time.time())
 
         while volume_status != status:
             time.sleep(self.build_interval)
-            body = self.get_volume(volume_id)
+            body = self.show_volume(volume_id)
             volume_status = body['status']
             if volume_status == 'error':
                 raise exceptions.VolumeBuildErrorException(volume_id=volume_id)
@@ -111,7 +103,7 @@
 
     def is_resource_deleted(self, id):
         try:
-            self.get_volume(id)
+            self.show_volume(id)
         except lib_exc.NotFound:
             return True
         return False