def test_ignores_error_on_API(self): middleware = RPCErrorsMiddleware() non_api_request = factory.make_fake_request("/api/2.0/ohai") exception_class = random.choice( (NoConnectionsAvailable, PowerActionAlreadyInProgress)) exception = exception_class(factory.make_string()) self.assertIsNone( middleware.process_exception(non_api_request, exception))
def test_ignores_non_rpc_errors(self): middleware = RPCErrorsMiddleware() request = factory.make_fake_request(factory.make_string(), 'POST') exception = ZeroDivisionError( "You may think it's a long walk down the street to the chemist " "but that's just peanuts to space!") response = middleware.process_exception(request, exception) self.assertIsNone(response)
def test_no_connections_available_has_usable_cluster_name_in_msg(self): # If a NoConnectionsAvailable exception carries a reference to # the cluster UUID, RPCErrorsMiddleware will look up the # cluster's name and make the error message it displays more # useful. middleware = RPCErrorsMiddleware() request = factory.make_fake_request(factory.make_string(), 'POST') rack_controller = factory.make_RackController() error = NoConnectionsAvailable(factory.make_name('msg'), uuid=rack_controller.system_id) middleware.process_exception(request, error) expected_error_message = ( "Error: Unable to connect to rack controller '%s' (%s); no " "connections available." % (rack_controller.hostname, rack_controller.system_id)) self.assertEqual([(constants.ERROR, expected_error_message, '')], request._messages.messages)
def test_handles_TimeoutError(self): middleware = RPCErrorsMiddleware() request = factory.make_fake_request(factory.make_string(), 'POST') error_message = "Here, have a picture of Queen Victoria!" error = TimeoutError(error_message) response = middleware.process_exception(request, error) # The response is a redirect. self.assertEqual(request.path, extract_redirect(response)) # An error message has been published. self.assertEqual([(constants.ERROR, "Error: " + error_message, '')], request._messages.messages)
def test_handles_NoConnectionsAvailable(self): middleware = RPCErrorsMiddleware() request = factory.make_fake_request(factory.make_string(), 'POST') error_message = ("No connections available for cluster %s" % factory.make_name('cluster')) error = NoConnectionsAvailable(error_message) response = middleware.process_exception(request, error) # The response is a redirect. self.assertEqual(request.path, extract_redirect(response)) # An error message has been published. self.assertEqual([(constants.ERROR, "Error: " + error_message, '')], request._messages.messages)
def test_handles_PowerActionAlreadyInProgress(self): middleware = RPCErrorsMiddleware() request = factory.make_fake_request(factory.make_string(), 'POST') error_message = ("Unable to execute power action: another action is " "already in progress for node %s" % factory.make_name('node')) error = PowerActionAlreadyInProgress(error_message) response = middleware.process_exception(request, error) # The response is a redirect. self.assertEqual(request.path, extract_redirect(response)) # An error message has been published. self.assertEqual([(constants.ERROR, "Error: %s" % error_message, '')], request._messages.messages)