Painting p1 = dc.newObject(Painting.class), p2 = dc.newObject(Painting.class),
p3 = dc.newObject(Painting.class);
p1.setPaintingTitle("p1");
p2.setPaintingTitle("p2");
p3.setPaintingTitle("p3");
artist.addToPaintingArray(p1);
artist.addToPaintingArray(p2);
assertTrue(ExpressionFactory.matchExp("paintingArray", p1).match(artist));
assertFalse(ExpressionFactory.matchExp("paintingArray", p3).match(artist));
assertFalse(ExpressionFactory.noMatchExp("paintingArray", p1).match(artist));