1*f585d8a3SJacky Wang /* 2*f585d8a3SJacky Wang * Copyright (C) 2021 The Dagger Authors. 3*f585d8a3SJacky Wang * 4*f585d8a3SJacky Wang * Licensed under the Apache License, Version 2.0 (the "License"); 5*f585d8a3SJacky Wang * you may not use this file except in compliance with the License. 6*f585d8a3SJacky Wang * You may obtain a copy of the License at 7*f585d8a3SJacky Wang * 8*f585d8a3SJacky Wang * http://www.apache.org/licenses/LICENSE-2.0 9*f585d8a3SJacky Wang * 10*f585d8a3SJacky Wang * Unless required by applicable law or agreed to in writing, software 11*f585d8a3SJacky Wang * distributed under the License is distributed on an "AS IS" BASIS, 12*f585d8a3SJacky Wang * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13*f585d8a3SJacky Wang * See the License for the specific language governing permissions and 14*f585d8a3SJacky Wang * limitations under the License. 15*f585d8a3SJacky Wang */ 16*f585d8a3SJacky Wang 17*f585d8a3SJacky Wang package dagger.functional.binds; 18*f585d8a3SJacky Wang 19*f585d8a3SJacky Wang import static com.google.common.truth.Truth.assertThat; 20*f585d8a3SJacky Wang 21*f585d8a3SJacky Wang import dagger.Binds; 22*f585d8a3SJacky Wang import dagger.Component; 23*f585d8a3SJacky Wang import dagger.Module; 24*f585d8a3SJacky Wang import javax.inject.Inject; 25*f585d8a3SJacky Wang import javax.inject.Provider; 26*f585d8a3SJacky Wang import javax.inject.Singleton; 27*f585d8a3SJacky Wang import org.junit.Test; 28*f585d8a3SJacky Wang import org.junit.runner.RunWith; 29*f585d8a3SJacky Wang import org.junit.runners.JUnit4; 30*f585d8a3SJacky Wang 31*f585d8a3SJacky Wang @RunWith(JUnit4.class) 32*f585d8a3SJacky Wang public class ScopedBindsTest { 33*f585d8a3SJacky Wang interface Foo {} 34*f585d8a3SJacky Wang 35*f585d8a3SJacky Wang static final class FooImpl implements Foo { FooImpl()36*f585d8a3SJacky Wang @Inject FooImpl() {} 37*f585d8a3SJacky Wang } 38*f585d8a3SJacky Wang 39*f585d8a3SJacky Wang @Module 40*f585d8a3SJacky Wang interface FooModule { 41*f585d8a3SJacky Wang @Binds 42*f585d8a3SJacky Wang @Singleton bindFoo(FooImpl impl)43*f585d8a3SJacky Wang Foo bindFoo(FooImpl impl); 44*f585d8a3SJacky Wang } 45*f585d8a3SJacky Wang 46*f585d8a3SJacky Wang @Component(modules = FooModule.class) 47*f585d8a3SJacky Wang @Singleton 48*f585d8a3SJacky Wang interface TestComponent { foo()49*f585d8a3SJacky Wang Foo foo(); 50*f585d8a3SJacky Wang fooProvider()51*f585d8a3SJacky Wang Provider<Foo> fooProvider(); 52*f585d8a3SJacky Wang } 53*f585d8a3SJacky Wang 54*f585d8a3SJacky Wang @Test fooVsFooProvider_sameInstanceTest()55*f585d8a3SJacky Wang public void fooVsFooProvider_sameInstanceTest() { 56*f585d8a3SJacky Wang TestComponent component = DaggerScopedBindsTest_TestComponent.create(); 57*f585d8a3SJacky Wang 58*f585d8a3SJacky Wang // These should be the same instance because Foo is scoped 59*f585d8a3SJacky Wang assertThat(component.foo()).isSameInstanceAs(component.fooProvider().get()); 60*f585d8a3SJacky Wang } 61*f585d8a3SJacky Wang } 62