40 lines
1.1 KiB
Python
40 lines
1.1 KiB
Python
import time
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import pytest
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from panda import Panda
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pytestmark = [
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pytest.mark.test_panda_types(Panda.INTERNAL_DEVICES),
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pytest.mark.test_panda_types([Panda.HW_TYPE_TRES])
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]
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@pytest.mark.timeout(2*60)
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def test_fan_curve(p):
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# ensure fan curve is (roughly) linear
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for power in (30, 50, 80, 100):
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p.set_fan_power(0)
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while p.get_fan_rpm() > 0:
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time.sleep(0.1)
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# wait until fan spins up, then wait a bit more for the RPM to converge
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p.set_fan_power(power)
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for _ in range(20):
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time.sleep(1)
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if p.get_fan_rpm() > 1000:
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break
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time.sleep(5)
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expected_rpm = Panda.MAX_FAN_RPMs[bytes(p.get_type())] * power / 100
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assert 0.75 * expected_rpm <= p.get_fan_rpm() <= 1.25 * expected_rpm
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def test_fan_cooldown(p):
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# if the fan cooldown doesn't work, we get high frequency noise on the tach line
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# while the rotor spins down. this makes sure it never goes beyond the expected max RPM
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p.set_fan_power(100)
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time.sleep(3)
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p.set_fan_power(0)
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for _ in range(5):
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assert p.get_fan_rpm() <= Panda.MAX_FAN_RPMs[bytes(p.get_type())]
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time.sleep(0.5)
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