xref: /aosp_15_r20/external/dagger2/javatests/dagger/functional/componentdependency/ComponentDependenciesTest.java (revision f585d8a307d0621d6060bd7e80091fdcbf94fe27)

/*
 * Copyright (C) 2020 The Dagger Authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package dagger.functional.componentdependency;

import static com.google.common.truth.Truth.assertThat;

import dagger.Component;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/**
 * Tests component dependencies.
 */
@RunWith(JUnit4.class)
public final class ComponentDependenciesTest {
  public interface One {
    String getString();
  }

  public interface Two {
    String getString();
  }

  public interface Merged extends One, Two {
  }

  @Component(dependencies = Merged.class)
  interface TestComponent {
    String getString();

    @Component.Builder
    interface Builder {
      Builder dep(Merged dep);

      TestComponent build();
    }
  }

  @Test
  public void testSameMethodTwice() throws Exception {
    TestComponent component =
        DaggerComponentDependenciesTest_TestComponent.builder().dep(() -> "test").build();
    assertThat(component.getString()).isEqualTo("test");
  }

  public interface OneOverride {
    Object getString();
  }

  public interface TwoOverride {
    Object getString();
  }

  public interface MergedOverride extends OneOverride, TwoOverride {
    @Override
    String getString();
  }

  @Component(dependencies = MergedOverride.class)
  interface TestOverrideComponent {
    String getString();

    @Component.Builder
    interface Builder {
      Builder dep(MergedOverride dep);

      TestOverrideComponent build();
    }
  }

  @Test
  public void testPolymorphicOverridesStillCompiles() throws Exception {
    TestOverrideComponent component =
        DaggerComponentDependenciesTest_TestOverrideComponent.builder().dep(() -> "test").build();
    assertThat(component.getString()).isEqualTo("test");
  }
}