def test_get_temperature_unit_4(self):
     """get_temperature_unit(...) when empty request {} must return "celsius"""
     request_arguments = {}
     result = get_temperature_unit(request_arguments)
     self.assertEqual(result, "celsius")
 def test_get_temperature_unit_3(self):
     """get_temperature_unit(...) when request has {'unit':"fahrenheit"} must return "fahrenheit"""
     request_arguments = {"unit": "fahrenheit"}
     result = get_temperature_unit(request_arguments)
     self.assertEqual(result, request_arguments["unit"])