@Test
public void shouldDeclareExtensionWhenAdding() {
ComponentContainer container = new ComponentContainer();
PluginInfo plugin = mock(PluginInfo.class);
container.addExtension(plugin, ComponentWithProperty.class);
PropertyDefinitions propertyDefinitions =
container.getComponentByType(PropertyDefinitions.class);
assertThat(propertyDefinitions.get("foo")).isNotNull();
assertThat(container.getComponentByType(ComponentWithProperty.class)).isNotNull();
assertThat(container.getComponentByKey(ComponentWithProperty.class)).isNotNull();
}
