class TestSineWaveSensor(DatabaseTest):
def setup(self):
self.period = 0.1
self.max = 8
self.min = -2
self.sensor = SineWaveSensor(sensor_name="sine", period = self.period,
max_value=self.max, min_value=self.min)
super().setup()
def test_read_sensor(self):
start_val = self.sensor.read()[0]
ok_(isinstance(start_val, Sensor.value_type),
"Type of values should be SensorDataValues, got {}".format(
type(start_val)))
# check the period works properly
sleep(self.period * 0.95)
end_val = self.sensor.read()[0]
ok_(abs(end_val.value - start_val.value) < 1,
"Sine Wave sensor should have appropriate periodicity. Got values "
"start: {}, end: {}".format(start_val.value, end_val.value))
# make sure the value is actually changing
sleep(self.period * 0.3)
val = self.sensor.read()[0]
ok_(val.value < self.max and val.value > self.min,
"Value {} should be between {} and {}".format(val.value, self.min,
self.max))
ok_(abs(val.value - end_val.value) > 1, "Value {} should have changed "
"from {}".format(val.value, end_val.value))
def setup(self):
self.period = 0.1
self.max = 8
self.min = -2
self.sensor = SineWaveSensor(sensor_name="sine", period = self.period,
max_value=self.max, min_value=self.min)
super().setup()
