def test_laser_power_shows_1_when_laser_on(self):
l = LaserControl()
l.set_laser_on()
self.assertEquals(1.0, l.laser_power())
def test_laser_power_shows_default_when_provided(self):
expected_laser_power = 0.6
l = LaserControl(expected_laser_power)
l.set_laser_on()
self.assertEquals(expected_laser_power, l.laser_power())
def test_laser_power_shows_0_when_laser_off(self):
l = LaserControl()
l.set_laser_off()
self.assertEquals(0.0, l.laser_power())
