public void IsTopicUpdated() { validation.UpdateTopic(topicList[0]).Returns(topicListAdmin); topicController.Request = new HttpRequestMessage(); topicController.Configuration = new HttpConfiguration(); topicList[0].TopicName = "UpdatedTopic"; var actionResult = topicController.PutTopic(topicList[0]); Assert.AreEqual(HttpStatusCode.OK, actionResult.StatusCode); }