Mark: 2 revision(s)

2008-11-03T05:21:04Z

2 revision(s)

New page

Copy and paste the code below.

<pre>
import junit.framework.TestCase;

public class TestPair extends TestCase {
public void testConstruction() {
Pair<String, Integer> pair = new Pair<String, Integer>("Hello",100);
assertEquals("<Hello, 100>", pair.toString());
}

public void testGet() {
Pair<Integer, String> pair = new Pair<Integer, String>(200,"Yen");
assertEquals(new Integer(200), pair.getFirst());
assertEquals("Yen", pair.getSecond());
}

public void testSet() {
Pair<String, String> pair = new Pair<String, String>(null,null);
pair.setFirst("Firstie");
pair.setSecond("Secondie");
assertEquals("<Firstie, Secondie>", pair.toString());
}

public void testHashCode() {
Object o1 = new Object();
Object o2 = new Object();
Pair<Object, Object> pair = new Pair<Object, Object>(o1, o2);
assertEquals(o1.hashCode() + o2.hashCode(), pair.hashCode());
}

public void testEquals() {
Pair<String, Integer> pair1 = new Pair<String, Integer>("Yoyo", -20);
Pair<String, Integer> pair2 = new Pair<String, Integer>("Yoyo", -20);
assertTrue(pair1.equals(pair2));

Object o1 = new Object();
Object o2 = new Object();
Object o3 = new Object();
Pair<Object, Object> pair3 = new Pair<Object, Object>(o1, o2);
Pair<Object, Object> pair4 = new Pair<Object, Object>(o1, o2);
assertTrue(pair3.equals(pair4));

Pair<Object, Object> pair5 = new Pair<Object, Object>(o1, o2);
Pair<Object, Object> pair6 = new Pair<Object, Object>(o1, o3);
assertFalse(pair5.equals(pair6));
}
}
</pre>

SE251Ex:Generic Pair TestPair - Revision history

Mark: 2 revision(s)