src/test/java/com/android/tools/r8/desugar/nestaccesscontrol/NestLambdaJava17Test.java

// Copyright (c) 2022, 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.nestaccesscontrol;

import static com.android.tools.r8.utils.AndroidApiLevel.B;
import static com.android.tools.r8.utils.FileUtils.JAR_EXTENSION;

import com.android.tools.r8.TestBase;
import com.android.tools.r8.TestParameters;
import com.android.tools.r8.TestParametersCollection;
import com.android.tools.r8.TestRuntime.CfVm;
import com.android.tools.r8.ToolHelper;
import com.android.tools.r8.ToolHelper.DexVm.Version;
import com.android.tools.r8.utils.AndroidApiLevel;
import java.nio.file.Path;
import java.nio.file.Paths;
import org.junit.Assume;
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 NestLambdaJava17Test extends TestBase {

  public NestLambdaJava17Test(TestParameters parameters) {
    this.parameters = parameters;
  }

  private static final Path JDK17_JAR =
      Paths.get(ToolHelper.TESTS_BUILD_DIR, "examplesJava17").resolve("nest" + JAR_EXTENSION);
  private static final String MAIN = "nest.NestLambda";
  private static final String EXPECTED_RESULT = "printed: inner";

  private final TestParameters parameters;

  @Parameters(name = "{0}")
  public static TestParametersCollection data() {
    return getTestParameters()
        .withCfRuntimesStartingFromIncluding(CfVm.JDK17)
        // The test requires the java.util.function. package.
        .withDexRuntimesStartingFromIncluding(Version.V7_0_0)
        .withApiLevel(AndroidApiLevel.N)
        .enableApiLevelsForCf()
        .build();
  }

  @Test
  public void testReference() throws Exception {
    Assume.assumeTrue(parameters.isCfRuntime());
    testForJvm()
        .addProgramFiles(JDK17_JAR)
        .run(parameters.getRuntime(), MAIN)
        .assertSuccessWithOutputLines(EXPECTED_RESULT);
  }

  @Test
  public void testJavaD8() throws Exception {
    testForDesugaring(parameters)
        .addProgramFiles(JDK17_JAR)
        .run(parameters.getRuntime(), MAIN)
        .assertSuccessWithOutputLines(EXPECTED_RESULT);
  }

  @Test
  public void testR8() throws Exception {
    Assume.assumeTrue(parameters.isDexRuntime() || parameters.getApiLevel().equals(B));
    testForR8(parameters.getBackend())
        .addProgramFiles(JDK17_JAR)
        .applyIf(
            parameters.isCfRuntime(),
            // Alternatively we need to pass Jdk17 as library.
            b -> b.addKeepRules("-dontwarn java.lang.invoke.StringConcatFactory"))
        .setMinApi(parameters.getApiLevel())
        .addKeepMainRule(MAIN)
        .run(parameters.getRuntime(), MAIN)
        .assertSuccessWithOutputLines(EXPECTED_RESULT);
  }
}