public void Get_WhenCalled_ReturnsAllItems() { var expectedResult = 5; // Act var okResult = _controller.GetAllBreeds(); var okObject = okResult as OkObjectResult; // Assert var breedsList = (IEnumerable <Breeds>)okObject.Value; Assert.IsInstanceOf <OkObjectResult>(okResult); Assert.AreEqual(expectedResult, breedsList.Count()); }