@Test public void testEquals() { Diagram diagram1 = Diagram.newInstance(); Diagram diagram2 = Diagram.newInstance(); assertEquals(diagram1, diagram2); diagram2.canvas(new Node().bounds(Bounds.of(1.0, 2.0, 3.0, 4.0))); assertNotEquals(diagram1, diagram2); diagram1.canvas.bounds(Bounds.of(1.0, 2.0, 3.0, 4.0)); assertEquals(diagram1, diagram2); assertEquals(diagram1.hashCode(), diagram2.hashCode()); diagram2.incVersion(); assertNotEquals(diagram1, diagram2); diagram1.incVersion(); assertEquals(diagram1, diagram2); String edgeId = "e1"; diagram1.addEdge(new Edge().transitionId(edgeId)); assertNotEquals(diagram1, diagram2); diagram2.addEdge(new Edge().transitionId(edgeId)); assertEquals(diagram1, diagram2); }