public void TestDeleteSensor_ReturnTrue() { // Arrange var sensorID = fixture.Create <long>(); sensorService.Setup(ss => ss.DeleteSensor(sensorID)).Returns(true); // Act var result = sensorsController.DeleteSensors(sensorID); // Assert Assert.NotNull(result); OkObjectResult okObjResult = Assert.IsType <OkObjectResult>(result); Assert.Equal(200, okObjResult.StatusCode); Assert.NotNull(okObjResult.Value); Assert.IsType <bool>(okObjResult.Value); Assert.Equal(true, okObjResult.Value); }