def test_angle_dutycycle_inverse(angle):
"""Test the results of angle_to_dutycycle against its inverse, dutycycle_to_angle,
angle = ((dutycycle / 5) - 1) * 180. Passing of this test implies that
dutycycle_to_angle gives the proper results given angle_to_dutycycle.
"""
assert(math.isclose(motor.dutycycle_to_angle(motor.angle_to_dutycycle(angle)), angle))
def test_dutycycle_to_angle_range(dc):
"""Test that dutycycle_to_angle returns angles not less than -180."""
assert(-180 <= motor.dutycycle_to_angle(dc))