diff --git a/tempest/lib/exceptions.py b/tempest/lib/exceptions.py
index 259bbbb..2a6a788 100644
--- a/tempest/lib/exceptions.py
+++ b/tempest/lib/exceptions.py
@@ -149,6 +149,10 @@
     message = "Unexpected response code received"
 
 
+class InvalidIdentityVersion(TempestException):
+    message = "Invalid version %(identity_version)s of the identity service"
+
+
 class InvalidStructure(TempestException):
     message = "Invalid structure of table with details"
 
diff --git a/tempest/tests/lib/test_auth.py b/tempest/tests/lib/test_auth.py
index c08bf6a..12590a3 100644
--- a/tempest/tests/lib/test_auth.py
+++ b/tempest/tests/lib/test_auth.py
@@ -802,3 +802,12 @@
         _, auth_data = self.auth_provider.get_auth()
         self.assertIn('domain', auth_data)
         self.assertNotIn('project', auth_data)
+
+
+class TestGetCredentials(base.TestCase):
+
+    def test_invalid_identity_version(self):
+        with testtools.ExpectedException(exceptions.InvalidIdentityVersion,
+                                         '.* v1 .*'):
+            auth.get_credentials('http://localhost/identity/v3',
+                                 identity_version='v1')