@Test
public void testFromJsonString() {

	Twist p = Twist.fromJsonString(t1.toString());
	assertEquals(t1.toString(), p.toString());
	assertEquals(t1.toJsonObject(), p.toJsonObject());
	assertEquals(t1.getMessageType(), p.getMessageType());
	assertEquals(t1.getLinear(), p.getLinear());
	assertEquals(t1.getAngular(), p.getAngular());
	assertNotSame(t1, p);
	assertNotSame(t1.toString(), p.toString());
	assertNotSame(t1.toJsonObject(), p.toJsonObject());
}