JUnit testing void methods

[Mark Miranda]

Hello,

How can I write JUnit test cases for the Class below?

I put something together quickly, but that's basically the skeleton for the program i'm going to write...


I'm still fairly new to JUnit

public class ParkingLot{
	
	private ArrayList parkingSpace;
	
	ParkingLot(){
		parkingSpace = new ArrayList();
	}
	
	public void addCar(String x){
		//add object to ArrayList
	}
	
	public void findCar(String x){
		//find an object in ArrayList
	}
	
	public void removeCar(String x){
		//remove object from ArrayList
	}
    
}

[Pawel Piwowar]

Hello,

Your findCar() method must return something, should not be void.
Since you fix this, the class could be tested with code like that:

import static org.junit.Assert.*;
import org.junit.Before;
import org.junit.Test;
public class ParkingLotTest {

	public static final String CAR_NAME="myCar";
	
	@Test
	public void testFindCar() {
		ParkingLot lot = new ParkingLot();
		
		lot.addCar(CAR_NAME);
		assertEquals(CAR_NAME, lot.findCar(CAR_NAME));
	}
}

You can create similar tests for other methods.
Repeating code, like creating new instance of ParkingLot could be moved to separate method annotated with @Before