1 /* 2 * Copyright (C) 2015 Google Inc. 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 package com.google.inject.daggeradapter; 17 18 import com.google.common.collect.ImmutableSet; 19 import com.google.inject.AbstractModule; 20 import com.google.inject.Binder; 21 import com.google.inject.Guice; 22 import com.google.inject.Injector; 23 import com.google.inject.Key; 24 import com.google.inject.Module; 25 import com.google.inject.Provides; 26 import com.google.inject.TypeLiteral; 27 import com.google.inject.multibindings.Multibinder; 28 import com.google.inject.util.Providers; 29 import dagger.multibindings.IntoSet; 30 import java.lang.annotation.Retention; 31 import java.lang.annotation.RetentionPolicy; 32 import java.util.Set; 33 import javax.inject.Qualifier; 34 import junit.framework.TestCase; 35 36 /** 37 * Tests for {@link DaggerAdapter}. 38 * 39 * @author cgruber@google.com (Christian Gruber) 40 */ 41 42 public class DaggerAdapterTest extends TestCase { 43 @dagger.Module 44 static class SimpleDaggerModule { 45 @dagger.Provides anInteger()46 Integer anInteger() { 47 return 1; 48 } 49 } 50 testSimpleModule()51 public void testSimpleModule() { 52 Injector i = Guice.createInjector(DaggerAdapter.from(new SimpleDaggerModule())); 53 assertEquals((Integer) 1, i.getInstance(Integer.class)); 54 } 55 56 static class SimpleGuiceModule extends AbstractModule { 57 @Provides aString(Integer i)58 String aString(Integer i) { 59 return i.toString(); 60 } 61 } 62 testInteractionWithGuiceModules()63 public void testInteractionWithGuiceModules() { 64 Injector i = 65 Guice.createInjector(new SimpleGuiceModule(), DaggerAdapter.from(new SimpleDaggerModule())); 66 assertEquals("1", i.getInstance(String.class)); 67 } 68 69 @dagger.Module 70 static class SetBindingDaggerModule1 { 71 @dagger.Provides 72 @IntoSet anInteger()73 Integer anInteger() { 74 return 5; 75 } 76 } 77 78 @dagger.Module 79 static class SetBindingDaggerModule2 { 80 @dagger.Provides 81 @IntoSet anInteger()82 Integer anInteger() { 83 return 3; 84 } 85 } 86 testSetBindings()87 public void testSetBindings() { 88 Injector i = 89 Guice.createInjector( 90 DaggerAdapter.from(new SetBindingDaggerModule1(), new SetBindingDaggerModule2())); 91 assertEquals(ImmutableSet.of(3, 5), i.getInstance(new Key<Set<Integer>>() {})); 92 } 93 94 @Qualifier 95 @Retention(RetentionPolicy.RUNTIME) 96 public @interface AnnotationOnSet {} 97 98 @dagger.Module 99 static class SetBindingWithAnnotationDaggerModule { 100 @dagger.Provides 101 @IntoSet 102 @AnnotationOnSet anInteger()103 Integer anInteger() { 104 return 4; 105 } 106 } 107 testSetBindingsWithAnnotation()108 public void testSetBindingsWithAnnotation() { 109 Injector i = 110 Guice.createInjector(DaggerAdapter.from(new SetBindingWithAnnotationDaggerModule())); 111 assertEquals( 112 ImmutableSet.of(4), 113 i.getInstance(Key.get(new TypeLiteral<Set<Integer>>() {}, AnnotationOnSet.class))); 114 } 115 116 static class MultibindingGuiceModule implements Module { 117 @Override configure(Binder binder)118 public void configure(Binder binder) { 119 Multibinder<Integer> mb = Multibinder.newSetBinder(binder, Integer.class); 120 mb.addBinding().toInstance(13); 121 mb.addBinding().toProvider(Providers.of(8)); // mix'n'match. 122 } 123 } 124 testSetBindingsWithGuiceModule()125 public void testSetBindingsWithGuiceModule() { 126 Injector i = 127 Guice.createInjector( 128 new MultibindingGuiceModule(), 129 DaggerAdapter.from(new SetBindingDaggerModule1(), new SetBindingDaggerModule2())); 130 assertEquals(ImmutableSet.of(13, 3, 5, 8), i.getInstance(new Key<Set<Integer>>() {})); 131 } 132 } 133