diff --git a/tempest/api/baremetal/test_nodes.py b/tempest/api/baremetal/test_nodes.py
index b6432ad..1572840 100644
--- a/tempest/api/baremetal/test_nodes.py
+++ b/tempest/api/baremetal/test_nodes.py
@@ -87,3 +87,11 @@
         resp, node = self.client.show_node(node['uuid'])
         self.assertEqual('200', resp['status'])
         self._assertExpected(new_p, node['properties'])
+
+    @test.attr(type='smoke')
+    def test_validate_driver_interface(self):
+        resp, body = self.client.validate_driver_interface(self.node['uuid'])
+        self.assertEqual('200', resp['status'])
+        core_interfaces = ['power', 'deploy']
+        for interface in core_interfaces:
+            self.assertIn(interface, body)
diff --git a/tempest/api/compute/flavors/test_flavors.py b/tempest/api/compute/flavors/test_flavors.py
index 0e6b9d6..c1c2d05 100644
--- a/tempest/api/compute/flavors/test_flavors.py
+++ b/tempest/api/compute/flavors/test_flavors.py
@@ -89,44 +89,40 @@
     @test.attr(type='gate')
     def test_list_flavors_detailed_filter_by_min_disk(self):
         # The detailed list of flavors should be filtered by disk space
-        resp, flavors = self.client.list_flavors_with_detail()
-        flavors = sorted(flavors, key=lambda k: k['disk'])
-        flavor_id = flavors[0]['id']
+        resp, flavor = self.client.get_flavor_details(self.flavor_ref)
+        flavor_id = flavor['id']
 
-        params = {self._min_disk: flavors[0]['disk'] + 1}
+        params = {self._min_disk: flavor['disk'] + 1}
         resp, flavors = self.client.list_flavors_with_detail(params)
         self.assertFalse(any([i for i in flavors if i['id'] == flavor_id]))
 
     @test.attr(type='gate')
     def test_list_flavors_detailed_filter_by_min_ram(self):
         # The detailed list of flavors should be filtered by RAM
-        resp, flavors = self.client.list_flavors_with_detail()
-        flavors = sorted(flavors, key=lambda k: k['ram'])
-        flavor_id = flavors[0]['id']
+        resp, flavor = self.client.get_flavor_details(self.flavor_ref)
+        flavor_id = flavor['id']
 
-        params = {self._min_ram: flavors[0]['ram'] + 1}
+        params = {self._min_ram: flavor['ram'] + 1}
         resp, flavors = self.client.list_flavors_with_detail(params)
         self.assertFalse(any([i for i in flavors if i['id'] == flavor_id]))
 
     @test.attr(type='gate')
     def test_list_flavors_filter_by_min_disk(self):
         # The list of flavors should be filtered by disk space
-        resp, flavors = self.client.list_flavors_with_detail()
-        flavors = sorted(flavors, key=lambda k: k['disk'])
-        flavor_id = flavors[0]['id']
+        resp, flavor = self.client.get_flavor_details(self.flavor_ref)
+        flavor_id = flavor['id']
 
-        params = {self._min_disk: flavors[0]['disk'] + 1}
+        params = {self._min_disk: flavor['disk'] + 1}
         resp, flavors = self.client.list_flavors(params)
         self.assertFalse(any([i for i in flavors if i['id'] == flavor_id]))
 
     @test.attr(type='gate')
     def test_list_flavors_filter_by_min_ram(self):
         # The list of flavors should be filtered by RAM
-        resp, flavors = self.client.list_flavors_with_detail()
-        flavors = sorted(flavors, key=lambda k: k['ram'])
-        flavor_id = flavors[0]['id']
+        resp, flavor = self.client.get_flavor_details(self.flavor_ref)
+        flavor_id = flavor['id']
 
-        params = {self._min_ram: flavors[0]['ram'] + 1}
+        params = {self._min_ram: flavor['ram'] + 1}
         resp, flavors = self.client.list_flavors(params)
         self.assertFalse(any([i for i in flavors if i['id'] == flavor_id]))
 
diff --git a/tempest/services/baremetal/base.py b/tempest/services/baremetal/base.py
index 321b08b..f98ecff 100644
--- a/tempest/services/baremetal/base.py
+++ b/tempest/services/baremetal/base.py
@@ -122,7 +122,7 @@
 
         return resp, self.deserialize(body)
 
-    def _show_request(self, resource, uuid, permanent=False):
+    def _show_request(self, resource, uuid, permanent=False, **kwargs):
         """
         Gets a specific object of the specified type.
 
@@ -130,7 +130,10 @@
         :return: Serialized object as a dictionary.
 
         """
-        uri = self._get_uri(resource, uuid=uuid, permanent=permanent)
+        if 'uri' in kwargs:
+            uri = kwargs['uri']
+        else:
+            uri = self._get_uri(resource, uuid=uuid, permanent=permanent)
         resp, body = self.get(uri)
 
         return resp, self.deserialize(body)
diff --git a/tempest/services/baremetal/v1/base_v1.py b/tempest/services/baremetal/v1/base_v1.py
index ea0ccc9..61342eb 100644
--- a/tempest/services/baremetal/v1/base_v1.py
+++ b/tempest/services/baremetal/v1/base_v1.py
@@ -239,3 +239,19 @@
         target = {'target': state}
         return self._put_request('nodes/%s/states/power' % node_uuid,
                                  target)
+
+    @base.handle_errors
+    def validate_driver_interface(self, node_uuid):
+        """
+        Get all driver interfaces of a specific node.
+
+        :param uuid: Unique identifier of the node in UUID format.
+
+        """
+
+        uri = '{pref}/{res}/{uuid}/{postf}'.format(pref=self.uri_prefix,
+                                                   res='nodes',
+                                                   uuid=node_uuid,
+                                                   postf='validate')
+
+        return self._show_request('nodes', node_uuid, uri=uri)
diff --git a/tempest/tests/test_ssh.py b/tempest/tests/test_ssh.py
index bf1f553..27cd6b5 100644
--- a/tempest/tests/test_ssh.py
+++ b/tempest/tests/test_ssh.py
@@ -36,13 +36,13 @@
             rsa_mock.assert_called_once_with(mock.sentinel.csio)
             cs_mock.assert_called_once_with('mykey')
             rsa_mock.reset_mock()
-            cs_mock.rest_mock()
+            cs_mock.reset_mock()
             pkey = mock.sentinel.pkey
             # Shouldn't call out to load a file from RSAKey, since
             # a sentinel isn't a basestring...
             ssh.Client('localhost', 'root', pkey=pkey)
-            rsa_mock.assert_not_called()
-            cs_mock.assert_not_called()
+            self.assertEqual(0, rsa_mock.call_count)
+            self.assertEqual(0, cs_mock.call_count)
 
     def _set_ssh_connection_mocks(self):
         client_mock = mock.MagicMock()
@@ -75,7 +75,7 @@
             password=None
         )]
         self.assertEqual(expected_connect, client_mock.connect.mock_calls)
-        s_mock.assert_not_called()
+        self.assertEqual(0, s_mock.call_count)
 
     def test_get_ssh_connection_two_attemps(self):
         c_mock, aa_mock, client_mock = self._set_ssh_connection_mocks()