@Test
public void testConstructor() {

	assertEquals((byte) 0, empty.getData());
	assertEquals("{\"data\":0}", empty.toString());
	assertEquals(1, empty.toJsonObject().size());
	assertEquals(
			(byte) 0,
			Primitive.toUInt8((short) empty.toJsonObject().getInt(
					Char.FIELD_DATA)));
	assertEquals(Char.TYPE, empty.getMessageType());
}