Update error message: s/non-unique/duplicate

roles/openshift_health_checker/action_plugins/openshift_health_check.py

@@ -86,12 +86,10 @@ class ActionModule(ActionBase):
             name = cls.name
             if name in known_checks:
                 other_cls = known_checks[name].__class__
-                msg = "non-unique check name '{}' in: '{}' and '{}'".format(
-                    name,
-                    full_class_name(cls),
-                    full_class_name(other_cls),
+                raise OpenShiftCheckException(
+                    "duplicate check name '{}' in: '{}' and '{}'"
+                    "".format(name, full_class_name(cls), full_class_name(other_cls))
                 )
-                raise OpenShiftCheckException(msg)
             known_checks[name] = cls(execute_module=self._execute_module, tmp=tmp, task_vars=task_vars)
         return known_checks
 

roles/openshift_health_checker/test/action_plugin_test.py

@@ -95,7 +95,7 @@ def test_action_plugin_cannot_load_checks_with_the_same_name(plugin, task_vars,
 
     result = plugin.run(tmp=None, task_vars=task_vars)
 
-    assert failed(result, msg_has=['unique', 'duplicate_name', 'FakeCheck'])
+    assert failed(result, msg_has=['duplicate', 'duplicate_name', 'FakeCheck'])
 
 
 def test_action_plugin_skip_non_active_checks(plugin, task_vars, monkeypatch):