src/test/java/com/android/tools/r8/desugar/DefaultLambdaMethodWithPublicSuperClassTest.java

// Copyright (c) 2021, the R8 project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

package com.android.tools.r8.desugar;

import static org.junit.Assume.assumeTrue;

import com.android.tools.r8.TestBase;
import com.android.tools.r8.TestParameters;
import com.android.tools.r8.TestParametersCollection;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

@RunWith(Parameterized.class)
public class DefaultLambdaMethodWithPublicSuperClassTest extends TestBase {

  private final TestParameters parameters;
  private final String EXPECTED = "PublicNameBase::name";

  @Parameters(name = "{0}")
  public static TestParametersCollection data() {
    return getTestParameters().withAllRuntimes().withAllApiLevelsAlsoForCf().build();
  }

  public DefaultLambdaMethodWithPublicSuperClassTest(TestParameters parameters) {
    this.parameters = parameters;
  }

  @Test
  public void testJvm() throws Exception {
    assumeTrue(parameters.isCfRuntime());
    testForJvm()
        .addInnerClasses(getClass())
        .run(parameters.getRuntime(), Main.class)
        .assertSuccessWithOutputLines(EXPECTED);
  }

  @Test
  public void testDesugar() throws Exception {
    testForD8(parameters.getBackend())
        .addInnerClasses(getClass())
        .setMinApi(parameters.getApiLevel())
        .run(parameters.getRuntime(), Main.class)
        .assertSuccessWithOutputLines(EXPECTED);
  }

  interface Named {

    default String name() {
      return "interface";
    }

    class PublicNameBase {
      public String name() {
        return "PublicNameBase::name";
      }
    }

    class PublicName extends PublicNameBase implements Named {}
  }

  public static class Main {

    public static void main(String[] args) {
      System.out.println(new Named.PublicName().name());
    }
  }
}