src/test/java/com/android/tools/r8/desugar/records/EmptyRecordAnnotationTest.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.records;

import static com.android.tools.r8.utils.InternalOptions.TestingOptions;
import static org.junit.Assume.assumeTrue;

import com.android.tools.r8.R8FullTestBuilder;
import com.android.tools.r8.TestBase;
import com.android.tools.r8.TestParameters;
import com.android.tools.r8.TestRuntime.CfVm;
import com.android.tools.r8.utils.AndroidApiLevel;
import com.android.tools.r8.utils.StringUtils;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;

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

  private static final String RECORD_NAME = "EmptyRecordAnnotation";
  private static final byte[][] PROGRAM_DATA = RecordTestUtils.getProgramData(RECORD_NAME);
  private static final String MAIN_TYPE = RecordTestUtils.getMainType(RECORD_NAME);
  private static final String EXPECTED_RESULT_CF =
      StringUtils.lines("class java.lang.Record", "class records.EmptyRecordAnnotation$Empty");
  private static final String EXPECTED_RESULT_DEX =
      StringUtils.lines(
          "class com.android.tools.r8.RecordTag", "class records.EmptyRecordAnnotation$Empty");

  private final TestParameters parameters;

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

  @Parameterized.Parameters(name = "{0}")
  public static List<Object[]> data() {
    return buildParameters(
        getTestParameters()
            .withCfRuntimesStartingFromIncluding(CfVm.JDK17)
            .withDexRuntimes()
            .withAllApiLevelsAlsoForCf()
            .build());
  }

  private boolean isDefaultCfParameters() {
    return parameters.isCfRuntime() && parameters.getApiLevel().equals(AndroidApiLevel.B);
  }

  @Test
  public void testD8AndJvm() throws Exception {
    if (isDefaultCfParameters()) {
      testForJvm()
          .addProgramClassFileData(PROGRAM_DATA)
          .run(parameters.getRuntime(), MAIN_TYPE)
          .assertSuccessWithOutput(EXPECTED_RESULT_CF);
    }
    testForD8(parameters.getBackend())
        .addProgramClassFileData(PROGRAM_DATA)
        .setMinApi(parameters.getApiLevel())
        .addOptionsModification(TestingOptions::allowExperimentClassFileVersion)
        .compile()
        .run(parameters.getRuntime(), MAIN_TYPE)
        .assertSuccessWithOutput(EXPECTED_RESULT_DEX);
  }

  @Test
  public void testR8() throws Exception {
    assumeTrue(parameters.isDexRuntime() || isDefaultCfParameters());
    R8FullTestBuilder builder =
        testForR8(parameters.getBackend())
            .addProgramClassFileData(PROGRAM_DATA)
            .setMinApi(parameters.getApiLevel())
            .addKeepRules("-keep class records.EmptyRecordAnnotation { *; }")
            .addKeepRules("-keepattributes *Annotation*")
            .addKeepRules("-keep class records.EmptyRecordAnnotation$Empty")
            .addKeepMainRule(MAIN_TYPE)
            .addOptionsModification(TestingOptions::allowExperimentClassFileVersion);
    if (parameters.isCfRuntime()) {
      builder
          .addLibraryFiles(RecordTestUtils.getJdk15LibraryFiles(temp))
          .compile()
          .inspect(RecordTestUtils::assertRecordsAreRecords)
          .enableJVMPreview()
          .run(parameters.getRuntime(), MAIN_TYPE)
          .assertSuccessWithOutput(EXPECTED_RESULT_CF);
      return;
    }
    builder
        .addKeepRules("-keep class java.lang.Record")
        .run(parameters.getRuntime(), MAIN_TYPE)
        .assertSuccessWithOutput(EXPECTED_RESULT_DEX);
  }
}