public async Task ReturnVehicleModel() { //Arrange var modelId = 3; var vehicleModel = new VehicleModel() { ID = modelId, Name = "Car Model", Abbreviation = "CM", VehicleMakeId = 1 }; _modelRepoMock.Setup(x => x.FindById(modelId)).ReturnsAsync(vehicleModel); //Act IVehicleModel model = await _sut.GetVehicleModelByIDAsync(modelId); //Assert model.ID.Should().Be(modelId); }