@Test
public void testClone() {

	Duration clone = t1.clone();
	assertEquals(t1.toString(), clone.toString());
	assertEquals(t1.toJsonObject(), clone.toJsonObject());
	assertEquals(t1.getMessageType(), clone.getMessageType());
	assertEquals(t1.getData(), clone.getData());
	assertNotSame(t1, clone);
	assertNotSame(t1.toString(), clone.toString());
	assertNotSame(t1.toJsonObject(), clone.toJsonObject());
	assertNotSame(t1.getData(), clone.getData());
}