    @Test
    public void equalityTest() {

        GCodeWord t1 = new GCodeWord("G4", null);
        GCodeWord t2 = new GCodeWord("G4", null);
        assertTrue("Same GCode must return equal", t1.equals(t2));

        t1 = new GCodeWord("G4", 12.0);
        t2 = new GCodeWord("G4", 13.0);
        assertTrue("Same GCode must return equal", t1.equals(t2));
    }