new_contents: import ev3.ev3dev
  import unittest
  from util import get_input
  
  
  class TestI2CS(unittest.TestCase):
  
      def test_battery(self):
          print(ev3.ev3dev.get_battery_percentage())
  if __name__ == '__main__':
      unittest.main()
  
subject: Move get_battery_percentage to module method Add test