public async Task GetTopics_ServiceInvoke()
{
//Act
await _topicController.GetTopics();
//Assert
_topicServiceMock.Verify(s => s.GetTopics());
}
public void GetTopics_ReturnSuccess()
{
_topics.Sort(new TopicComparer());
_topics.Reverse();
var expected = new OkObjectResult(_topics).Value;
var actual = ((OkObjectResult)_topicController.GetTopics().Result).Value;
Assert.AreEqual(expected, actual);
}