class DimmerGetValueTests(RpiTestCase):
def setUp(self):
super(DimmerGetValueTests, self).setUp()
self.start_time = datetime.datetime.utcnow()
self.dimmer = Dimmer(start_time=self.start_time)
@mock.patch('alarm_clock.Dimmer._limit_value')
def test_get_value_calls_limit_value_with_zero_if_start_time(self, mock_limit):
self.dimmer.get_value(self.start_time)
mock_limit.assert_called_once_with(0)
@mock.patch('alarm_clock.Dimmer._limit_value')
def test_get_value_calls_limit_value_with_max_if_time_period_added_to_start_time(self, mock_limit):
self.dimmer.get_value(self.start_time+datetime.timedelta(seconds=self.dimmer.time_period))
mock_limit.assert_called_once_with(self.dimmer.MAX)
@mock.patch('alarm_clock.Dimmer._limit_value')
def test_get_value_calls_limit_value_with_half_max_if_half_time_period_added_to_start_time(self, mock_limit):
self.dimmer.get_value(self.start_time+datetime.timedelta(seconds=self.dimmer.time_period/2))
mock_limit.assert_called_once_with(self.dimmer.MAX/2)
def setUp(self): super(DimmerGetValueTests, self).setUp() self.start_time = datetime.datetime.utcnow() self.dimmer = Dimmer(start_time=self.start_time)
def test_limit_values_returns_min_if_value_is_less_than_min(self): dimmer = Dimmer() value = dimmer._limit_value(dimmer.MIN-1) self.assertEqual(dimmer.MIN, value)
def test_returns_value_within_max_min_range(self): dimmer = Dimmer() value = dimmer._limit_value(dimmer.MIN + 1) self.assertEqual(dimmer.MIN+1, value)
def test_limit_values_returns_max_if_value_is_greater_than_max(self): dimmer = Dimmer() value = dimmer._limit_value(dimmer.MAX+1) self.assertEqual(dimmer.MAX, value)
