1 /* 2 * Copyright (C) 2017 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.builder; 18 19 import static com.google.common.truth.Truth.assertThat; 20 21 import dagger.Component; 22 import org.junit.Test; 23 import org.junit.runner.RunWith; 24 import org.junit.runners.JUnit4; 25 26 @RunWith(JUnit4.class) 27 public final class BuildMethodCovariantReturnTest { 28 @Component 29 interface C { 30 @Component.Builder 31 interface Builder { build()32 Object build(); 33 } 34 } 35 36 @Test componentTest()37 public void componentTest() { 38 Object component = DaggerBuildMethodCovariantReturnTest_C.builder().build(); 39 assertThat(component).isInstanceOf(C.class); 40 } 41 } 42