JUnit time test

import com.w3schools.business.*;
import static org.junit.Assert.*;
import org.junit.Test;
 
/**
 * This is test case class for time out test.
 * @author w3schools
 */
public class DivisionTestCase {
	//DivisionTest class objects
	DivisionTest divisionTest1 = new DivisionTest(10, 2); 
	DivisionTest divisionTest2 = new DivisionTest(10, 0); 
 
	//Test case for division
	@Test
	public void test() {
		assertEquals(5, divisionTest1.division());
	}
 
	//Test case for print result.
	@Test(timeout=1000)
	public void testPrintResult() {
		divisionTest1.printResult();
	}
 
	//Test case for expected ArithmeticException, 
	//As in this case ArithmeticException
	// is the expected exception so 
	//JUnit will pass this unit test.
	@Test(expected = ArithmeticException.class)  
	public void testException() {
		assertEquals(5, divisionTest2.division());
	}
}

/**
 * This is simple java class containing division method.
 * @author w3schools
 */
public class DivisionTest {
	//data members
	int num1, num2, result = 0;
 
	//parameterised constructor
	public DivisionTest(int num1, int num2){
		this.num1 = num1;
		this.num2 = num2;
	}
 
	//division method
	public int division() throws ArithmeticException{
		result = num1/num2;
		return result;
	}
 
	//print result, while(true) is used for infinite loop. 
	public void printResult(){
		System.out.println("Result = " +result);
		while(true);
	}
}