1 /* 2 * Copyright (C) 2021 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.hilt.android; 18 19 import static androidx.test.core.app.ApplicationProvider.getApplicationContext; 20 import static com.google.common.truth.Truth.assertThat; 21 22 import android.os.Build; 23 import androidx.test.ext.junit.runners.AndroidJUnit4; 24 import dagger.Module; 25 import dagger.Provides; 26 import dagger.hilt.EntryPoints; 27 import dagger.hilt.InstallIn; 28 import dagger.hilt.android.UsesComponentTestClasses.Foo; 29 import dagger.hilt.android.UsesComponentTestClasses.FooEntryPoint; 30 import dagger.hilt.android.UsesComponentTestClasses.UsesComponentQualifier; 31 import dagger.hilt.android.UsesComponentTestClasses.UsesComponentTestSubcomponent; 32 import dagger.hilt.android.UsesComponentTestClasses.UsesComponentTestSubcomponentBuilderEntryPoint; 33 import dagger.hilt.android.internal.testing.TestApplicationComponentManager; 34 import dagger.hilt.android.testing.HiltAndroidRule; 35 import dagger.hilt.android.testing.HiltAndroidTest; 36 import dagger.hilt.android.testing.HiltTestApplication; 37 import dagger.hilt.components.SingletonComponent; 38 import javax.inject.Inject; 39 import javax.inject.Qualifier; 40 import org.junit.Rule; 41 import org.junit.Test; 42 import org.junit.runner.RunWith; 43 import org.robolectric.annotation.Config; 44 45 /** 46 * A test that provides its own test bindings, and therefore cannot use the shared components. 47 * 48 * <p>Note that this test class exactly matches the simple name of {@link 49 * dagger.hilt.android.testsubpackage.UsesLocalComponentTestBindingsTest}. This is intentional and 50 * used to verify generated code class names do not clash. 51 */ 52 @HiltAndroidTest 53 @RunWith(AndroidJUnit4.class) 54 // Robolectric requires Java9 to run API 29 and above, so use API 28 instead 55 @Config(sdk = Build.VERSION_CODES.P, application = HiltTestApplication.class) 56 public final class UsesLocalComponentTestBindingsTest { 57 58 @Rule public HiltAndroidRule rule = new HiltAndroidRule(this); 59 60 @Qualifier 61 @interface TestQualifier {} 62 63 @Inject @UsesComponentQualifier String injectedString; 64 @Inject @TestQualifier String localString; 65 66 @Module 67 @InstallIn(SingletonComponent.class) 68 public static final class TestModule { 69 @Provides 70 @TestQualifier provideString()71 static String provideString() { 72 return "local_string"; 73 } 74 TestModule()75 private TestModule() {} 76 } 77 78 @Test testInject()79 public void testInject() { 80 rule.inject(); 81 assertThat(injectedString).isEqualTo("shared_string"); 82 assertThat(localString).isEqualTo("local_string"); 83 } 84 85 @Test testSubcomponent()86 public void testSubcomponent() { 87 UsesComponentTestSubcomponent subcomponent = 88 EntryPoints.get( 89 getApplicationContext(), UsesComponentTestSubcomponentBuilderEntryPoint.class) 90 .mySubcomponentBuilder() 91 .id(123) 92 .build(); 93 94 Foo foo1 = EntryPoints.get(subcomponent, FooEntryPoint.class).foo(); 95 Foo foo2 = EntryPoints.get(subcomponent, FooEntryPoint.class).foo(); 96 97 assertThat(foo1).isNotNull(); 98 assertThat(foo2).isNotNull(); 99 assertThat(foo1).isSameInstanceAs(foo2); 100 } 101 102 @Test testUsesLocalComponent()103 public void testUsesLocalComponent() { 104 HiltTestApplication app = (HiltTestApplication) getApplicationContext(); 105 Object generatedComponent = 106 ((TestApplicationComponentManager) app.componentManager()).generatedComponent(); 107 assertThat(generatedComponent.getClass().getName()) 108 .isEqualTo(UsesComponentHelper.perTestComponentNameWithDedupePrefix("dha_", this)); 109 } 110 } 111