text: import unittest
  import numpy as np
  from anemometer import AnemometerWithTachometer
  from sensor_mock import SensorMock
  
  
  class AnemometerWithTachometerTestCase(unittest.TestCase):
  
      def test_creation(self):
          sensors = dict()
          sensors['Tachometer'] = SensorMock('Tachometer')
          arm_length_meters = 0.1
          anemometer = AnemometerWithTachometer(sensors, arm_length_meters)
          print(anemometer.sensor.sensor_read) 
          self.assertEqual(None,None)
  
      def test_get_value(self):
          sensors = dict() 
          sensors['Tachometer'] = SensorMock('Tachometer')
          arm_length_meters = 0.1
          anemometer = AnemometerWithTachometer(sensors, arm_length_meters)
          wind_speed = anemometer.get_value() 
          print(wind_speed)
          self.assertAlmostEqual(
              22.61946710584651, 
              wind_speed['wind_speed'])
  
  if __name__ == "__main__":
      unittest.main()  
  