assertEquals(1, sA.getStrokeWidth().value, 0);
assertEquals(1, sB.getStrokeWidth().value, 0);
assertEquals(1, sC.getStrokeWidth().value, 0);
assertEquals(1, sD.getStrokeWidth().value, 0);
sgs.pushEvent("clicked"); // Both events at a time.
sgs.pushEvent("selected"); // They should cascade.
sA = sgs.getStyleForElement(A);
sB = sgs.getStyleForElement(B);
sC = sgs.getStyleForElement(C);