public void AddPostToTopic_GivenWrongId_ReturnStatusCode406()
{
var topicId = -1;
var post = new Post {
OwnerId = _user.Id, Message = "Something"
};
var expected = new StatusCodeResult(406);
var actual = (StatusCodeResult)_topicController.AddPostToTopic(topicId, post).Result;
Assert.AreEqual(expected.StatusCode, actual.StatusCode);
}