public static void AddRegionDiscoveryMockHandler( this MockHttpManager httpManager, string response) { httpManager.AddMockHandler( new MockHttpMessageHandler { ExpectedMethod = HttpMethod.Get, ExpectedUrl = "http://169.254.169.254/metadata/instance/compute/location", ExpectedRequestHeaders = new Dictionary <string, string> { { "Metadata", "true" } }, ResponseMessage = MockHelpers.CreateSuccessResponseMessage(response) }); }