@Test
public void testFromJsonObject() {

	JsonObject jsonObject = Json
			.createObjectBuilder()
			.add(QuaternionStamped.FIELD_HEADER,
					p1.getHeader().toJsonObject())
			.add(QuaternionStamped.FIELD_QUATERNION,
					p1.getQuaternion().toJsonObject()).build();
	QuaternionStamped p = QuaternionStamped.fromJsonObject(jsonObject);
	assertEquals(p1.toString(), p.toString());
	assertEquals(p1.toJsonObject(), p.toJsonObject());
	assertEquals(p1.getMessageType(), p.getMessageType());
	assertEquals(p1.getHeader(), p.getHeader());
	assertEquals(p1.getQuaternion(), p.getQuaternion());
	assertNotSame(p1, p);
	assertNotSame(p1.toString(), p.toString());
	assertNotSame(p1.toJsonObject(), p.toJsonObject());
}