NAT-328: fixed tox issues

test/workflows/site/test_create_site.py

@@ -43,7 +43,9 @@ def test_create_site(responses, faker):
 
 @pytest.mark.workflow
 def test_site_name_is_incorrect(responses, faker):
-    """The site name is a string with 3 upper case letter and one digit.
+    """Test validate site name on site creation.
+
+    The site name is a string with 3 upper case letter and one digit.
     Like: AMS, LON, LON1...LON 9.
     This test checks a invalid string for site name.
     The validation should throw an exception in case of a invalid string.