public async Task GetSpotsByRegionAsync_CallingTheService_Success() { // Arrange paginatedSpots.Data = expectedSpots; paginatedSpots.Counts = new PaginatedCountModel(paging, expectedSpots.Count()); moqService.Setup(x => x.GetSpotsByRegionAsync(It.IsAny <int>(), It.IsAny <PagingModel>())).ReturnsAsync(paginatedSpots); // Act var response = await controller.GetSpotsByRegionAsync(regionId, paging) as ObjectResult; var actualPaginatedSpots = response.Value as PaginatedModel <Spot>; // Assert moqService.VerifyAll(); Assert.IsInstanceOfType(response, typeof(OkObjectResult)); Assert.IsInstanceOfType(actualPaginatedSpots, typeof(PaginatedModel <Spot>)); Assert.AreEqual(expectedSpots, actualPaginatedSpots.Data); Assert.IsNotNull(actualPaginatedSpots.Counts); Assert.AreEqual(paging, actualPaginatedSpots.Counts.Paging); Assert.AreEqual(expectedSpots.Count(), actualPaginatedSpots.Counts.Total); }