1 /* 2 * Copyright (C) 2016 The Dagger Authors. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package dagger.functional.producers.subcomponent.pruning; 18 19 import static com.google.common.truth.Truth.assertThat; 20 21 import dagger.functional.producers.subcomponent.pruning.ParentDoesntUseProductionSubcomponent.ChildA; 22 import dagger.functional.producers.subcomponent.pruning.ParentDoesntUseProductionSubcomponent.ChildB; 23 import dagger.producers.ProducerModule; 24 import dagger.producers.ProductionSubcomponent; 25 import org.junit.Test; 26 import org.junit.runner.RunWith; 27 import org.junit.runners.JUnit4; 28 29 /** 30 * Tests for {@link ProductionSubcomponent}s which are included with {@link 31 * ProducerModule#subcomponents()} but not used directly within the component which adds them. 32 * 33 * <p>This tests to make sure that while resolving one subcomponent (A), another subcomponent (B) 34 * can be requested if they have a shared ancestor component. If that shared ancestor did not 35 * resolve B directly via any of its entry points, B will still be generated since it is requested 36 * by a descendant. 37 */ 38 @RunWith(JUnit4.class) 39 public class ProductionSubcomponentOnlyRequestedBySiblingTest { 40 @Test subcomponentAddedInParent_onlyUsedInSibling()41 public void subcomponentAddedInParent_onlyUsedInSibling() throws Exception { 42 ParentDoesntUseProductionSubcomponent parent = 43 DaggerParentDoesntUseProductionSubcomponent.create(); 44 ChildB childB = parent.childBBuilder().build(); 45 assertThat(childB.componentHierarchy().get()) 46 .containsExactly(ParentDoesntUseProductionSubcomponent.class, ChildB.class); 47 assertThat(childB.componentHierarchyFromChildA().get()) 48 .containsExactly(ParentDoesntUseProductionSubcomponent.class, ChildA.class); 49 } 50 } 51