public async Task GetAllDevicesAsync_WhenCalled_ReturnsAllSensors() { // Arange MockSensorRepository.Setup(repository => repository.GetAll(new CancellationToken(false))) .ReturnsAsync(GetAllSensorsTest(Fixture)); // Act var sensors = await _sensorService.GetAllAsync(CancellationToken.None); // Assert Assert.IsAssignableFrom <IEnumerable <Sensor> >(sensors); Assert.NotEmpty(sensors); }