@Test
public void testRootUpdatedWhenChangedInScene() {
Group g = new Group();
Scene scene = new Scene(g);
Group g2 = new Group();
scene.setRoot(g2);
assertNull(g.getScene());
assertEquals(g2, scene.getRoot());
assertEquals(scene, g2.getScene());
}
@Test
public void testNodeTreeUpdatedWhenAddedToScene() {
Rectangle rect;
Group root = new Group();
Scene scene = new Scene(root);
Group g = new Group();
g.getChildren().add(rect = new Rectangle());
assertNull(rect.getScene());
assertNull(g.getScene());
root.getChildren().add(g);
assertEquals(scene, g.getScene());
assertEquals(scene, rect.getScene());
}
@Test
public void testRootInitializedInConstructor() {
Group g = new Group();
Scene scene = new Scene(g);
assertEquals(g, scene.getRoot());
assertEquals(scene, g.getScene());
}
@Test
public void testRootUpdatedWhenAddedToScene() {
Scene scene = new Scene(new Group());
Group g = new Group();
scene.setRoot(g);
assertEquals(g, scene.getRoot());
assertEquals(scene, g.getScene());
}
@Test
public void testNodeTreeUpdatedWhenAddedToChildOfScene() {
Group parentGroup;
Group root = new Group();
Scene scene = new Scene(root);
root.getChildren().add(parentGroup = new Group());
Rectangle rect;
Group childGroup = new Group();
childGroup.getChildren().add(rect = new Rectangle());
assertNull(rect.getScene());
assertNull(childGroup.getScene());
assertEquals(scene, parentGroup.getScene());
parentGroup.getChildren().add(childGroup);
assertEquals(scene, rect.getScene());
assertEquals(scene, childGroup.getScene());
assertEquals(scene, parentGroup.getScene());
}