def assert_is_left_turn(ang): assert 0 <= ang.radians <= BIG_PI, "%1.3f degrees is not a left turn" % (mars_math.to_degrees(ang.radians))
def assert_is_right_turn(ang): assert -BIG_PI <= ang.radians <= 0, "%1.3f degrees is not a right turn" % (mars_math.to_degrees(ang.radians))