@Test
public void testChild() {
ComponentContainer parent = new ComponentContainer();
parent.startComponents();
ComponentContainer child = parent.createChild();
child.addSingleton(StartableComponent.class);
child.startComponents();
assertThat(child.getParent()).isSameAs(parent);
assertThat(parent.getChild()).isSameAs(child);
assertThat(child.getComponentByType(ComponentContainer.class)).isSameAs(child);
assertThat(parent.getComponentByType(ComponentContainer.class)).isSameAs(parent);
assertThat(child.getComponentByType(StartableComponent.class)).isNotNull();
assertThat(parent.getComponentByType(StartableComponent.class)).isNull();
parent.stopComponents();
}
