import static org.junit.Assert.*;
import org.junit.Test;
import org.junit.Before;
import org.junit.After;


public class SumTest{
	Sum sumObj;
	
	@Before public void createObject() {
		sumObj = new Sum();
	}
	
	@Test public void sum() {
		assertEquals(4, sumObj.add(2,2));
	}
	
	@After public void clean() {
		sumObj = null;
	}
}