Junit

com.a.b

package com.a.b;

public class Math {
	public static int div(int x, int y) throws Exception {
		return x / y;
	}
}

com.a.test

package com.a.test;

import static org.junit.Assert.*;

import org.junit.Test;

public class MathTest {

	@Test
	public void test() {
		fail("Not yet implemented");
	}

}

com.a.testA

package com.a.testA;
import com.a.b.Math;
import org.junit.Test;

import junit.framework.TestCase;

public class MathTestA {

	@Test
	public void testDiv() {
		try {
			TestCase.assertEquals(Math.div(10,2),5);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}