getWorld().getTile(0, 0).setOwner(testPlayer.getPrincipal());
    public void testMove() {        TrackTile oldTrackPiece;        TrackTile newTrackPiece;        byte oldConfig;        byte newConfig;        newConfig = CompassPoints.NORTH;        oldTrackPiece = getWorld().getTile(0, 0).getTrackTile();        newTrackPiece = TrackTile.createTrackTile(getWorld(), newConfig, 0);        Move move = new ChangeTrackPieceMove(oldTrackPiece, newTrackPiece,                new Point(0, 0), testPlayer.getPrincipal());        assertEqualsSurvivesSerialisation(move);        assertOkButNotRepeatable(move);    }