def test_cooling_power_off():
state = False
request = 21.0
threshold = 1.0
hysteresis = 0.5
power = Power(threshold, hysteresis)
# below request, below threshold, below hysteresis => power off
power.state = state
power.calculate(request, request - threshold - hysteresis - 1, 'cool')
assert power.state == False
# below request, below threshold, above hysteresis => power off
power.state = state
power.calculate(request, request - threshold - (hysteresis / 2), 'cool')
assert power.state == False
# below request, above threshold => power on
power.state = state
power.calculate(request, request - (threshold / 2), 'cool')
assert power.state == True
def test_heating_power_off():
state = False
request = 21.0
threshold = 1.0
hysteresis = 0.5
power = Power(threshold, hysteresis)
# above request, above threshold, above hysteresis => power off
power.state = state
power.calculate(request, request + threshold + hysteresis + 1, 'heat')
assert power.state == False
# above request, above threshold, below hysteresis => power off
power.state = state
power.calculate(request, request + threshold + (hysteresis / 2), 'heat')
assert power.state == False
# above request, below threshold => power on
power.state = state
power.calculate(request, request + (threshold / 2), 'heat')
assert power.state == True
