I need help making a CircuitTester in java for the following code, needing an actual and expected states :public class Circuit { private int firstSwitchState = 0; private int secondSwitchState = 0; private int lampState = 0; // 0 for down and 1 for up public int getFirstSwitchState() { return firstSwitchState; } public int getSecondSwitchState() { return secondSwitchState; } // 0 for off and 1 for on public int getLampState() { return lampState; } public void toggleFirstSwitch() { firstSwitchState = -1 * firstSwitchState + 1; toggleLampState(); } public void toggleSecondSwitch() { secondSwitchState = -1 * secondSwitchState + 1; toggleLampState(); } private void toggleLampState() { lampState = -1 * lampState + 1; } }