public async Task Get_ReturnsOK_WhenRequested() { //Arrange var planetServiceMock = new Mock <PlanetService>(); planetServiceMock.Setup(service => service.GetPlanetLayout()).Returns(Task.FromResult(new int[1, 1])); var planetController = new PlanetController(planetServiceMock.Object); //Act var response = await planetController.Get(); //Assert Assert.IsType <OkObjectResult>(response.Result); }