@Test
public void test_add_collection() {
ComponentContainer container = new ComponentContainer();
container.add(Arrays.asList(ComponentWithProperty.class, SimpleComponent.class));
assertThat(container.getComponentByType(ComponentWithProperty.class)).isNotNull();
assertThat(container.getComponentByType(SimpleComponent.class)).isNotNull();
}
@Test
public void shouldDeclareExtensionWithoutAddingIt() {
ComponentContainer container = new ComponentContainer();
PluginInfo plugin = mock(PluginInfo.class);
container.declareExtension(plugin, ComponentWithProperty.class);
PropertyDefinitions propertyDefinitions =
container.getComponentByType(PropertyDefinitions.class);
assertThat(propertyDefinitions.get("foo")).isNotNull();
assertThat(container.getComponentByType(ComponentWithProperty.class)).isNull();
}
@Test
public void should_start_and_stop() {
ComponentContainer container = spy(new ComponentContainer());
container.addSingleton(StartableComponent.class);
container.startComponents();
assertThat(container.getComponentByType(StartableComponent.class).started).isTrue();
assertThat(container.getComponentByType(StartableComponent.class).stopped).isFalse();
verify(container).doBeforeStart();
verify(container).doAfterStart();
container.stopComponents();
assertThat(container.getComponentByType(StartableComponent.class).stopped).isTrue();
}
@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();
}
@Test
public void shouldDeclareComponentProperties() {
ComponentContainer container = new ComponentContainer();
container.addSingleton(ComponentWithProperty.class);
PropertyDefinitions propertyDefinitions =
container.getComponentByType(PropertyDefinitions.class);
assertThat(propertyDefinitions.get("foo")).isNotNull();
assertThat(propertyDefinitions.get("foo").defaultValue()).isEqualTo("bar");
}
@Test
public void shouldForwardStartAndStopToDescendants() {
ComponentContainer grandParent = new ComponentContainer();
ComponentContainer parent = grandParent.createChild();
ComponentContainer child = parent.createChild();
child.addSingleton(StartableComponent.class);
grandParent.startComponents();
StartableComponent component = child.getComponentByType(StartableComponent.class);
assertTrue(component.started);
parent.stopComponents();
assertTrue(component.stopped);
}
@Test
public void shouldRegisterItself() {
ComponentContainer container = new ComponentContainer();
assertThat(container.getComponentByType(ComponentContainer.class)).isSameAs(container);
}
@Test
public void test_add_adapter() {
ComponentContainer container = new ComponentContainer();
container.add(new SimpleComponentProvider());
assertThat(container.getComponentByType(SimpleComponent.class)).isNotNull();
}