Intermediate_Python/test_alarm.py at master · orionsring/Intermediate_Python · GitHub

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import unittest

from unittest.mock import Mock

from alarm import Alarm
from sensor import Sensor

class Alarmtest(unittest.TestCase):

    def test_alarm_is_off_by_default(self):
	    alarm = Alarm()
		self.assertFalse(alarm.is_alarm_on)

	def test_check_too_low_pressure_sounds_alarm(self)
	    alarm = Alarm(sensor=TestSensor(15))
		alarm.check()
		self.assertTrue(alarm.is_alarm_on)

	def test_check_too_high_pressure_sounds_alarm(self)
	    alarm = Alarm(sensor=TestSensor(22))
		alarm.check()
		self.assertTrue(alarm.is_alarm_on)

	def test_check_normal_pressure_doesnt_sound_alarm(self)
	    alarm = Alarm(sensor=TestSensor(18))
		alarm.check()
		self.assertFalse(alarm.is_alarm_on)

	def test_check_with_pressure_ok_with_mock_fwi(self):
        test_sensor = Mock(Sensor)
	    test_sensor.sample_pressure.return_value = 18
		alarm = Alarm(test_sensor)
	    alarm.check()
		self.assertFalse(alarm.is_alarm_on)

class TestSensor:
    def __init__(self, pressure):
	    self.pressure = pressure
    def sample_pressure(self):
	    return self.pressure