src/test/java/com/android/tools/r8/MarkersTest.java

// Copyright (c) 2020, 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;

import static com.android.tools.r8.MarkerMatcher.assertMarkersMatch;
import static com.android.tools.r8.MarkerMatcher.markerCompilationMode;
import static com.android.tools.r8.MarkerMatcher.markerDesugaredLibraryIdentifier;
import static com.android.tools.r8.MarkerMatcher.markerHasChecksums;
import static com.android.tools.r8.MarkerMatcher.markerMinApi;
import static com.android.tools.r8.MarkerMatcher.markerR8Mode;
import static com.android.tools.r8.MarkerMatcher.markerTool;
import static org.hamcrest.CoreMatchers.allOf;

import com.android.tools.r8.dex.Marker;
import com.android.tools.r8.dex.Marker.Tool;
import com.android.tools.r8.origin.Origin;
import com.android.tools.r8.utils.AndroidApiLevel;
import com.android.tools.r8.utils.BooleanUtils;
import com.google.common.collect.ImmutableList;
import java.nio.file.Path;
import java.util.Collection;
import org.hamcrest.Matcher;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;

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

  @Parameterized.Parameters(name = "{0}, compilationMode {1}, shrinkDesugaredLibrary {2}")
  public static Collection<Object[]> data() {
    return buildParameters(
        getTestParameters().withNoneRuntime().build(),
        CompilationMode.values(),
        BooleanUtils.values());
  }

  private final TestParameters parameters;
  private final CompilationMode compilationMode;
  private final boolean shrinkDesugaredLibrary;

  public MarkersTest(
      TestParameters parameters, CompilationMode compilationMode, boolean shrinkDesugaredLibrary) {
    this.parameters = parameters;
    this.compilationMode = compilationMode;
    this.shrinkDesugaredLibrary = shrinkDesugaredLibrary;
  }

  @Test
  public void testL8Marker() throws Throwable {
    AndroidApiLevel apiLevel = AndroidApiLevel.L;
    Path output = temp.newFolder().toPath().resolve("desugar_jdk_libs.zip");
    L8Command.Builder builder =
        L8Command.builder()
            .addLibraryFiles(ToolHelper.getAndroidJar(AndroidApiLevel.P))
            .addProgramFiles(ToolHelper.getDesugarJDKLibs())
            .setMinApiLevel(apiLevel.getLevel())
            .setMode(compilationMode)
            .addDesugaredLibraryConfiguration(
                StringResource.fromFile(ToolHelper.DESUGAR_LIB_JSON_FOR_TESTING))
            .setOutput(output, OutputMode.DexIndexed);
    if (shrinkDesugaredLibrary) {
      builder.addProguardConfiguration(ImmutableList.of("-keep class * { *; }"), Origin.unknown());
    }
    L8.run(builder.build());
    Collection<Marker> markers = ExtractMarker.extractMarkerFromDexFile(output);
    Matcher<Marker> l8Matcher =
        allOf(
            markerTool(Tool.L8),
            markerCompilationMode(compilationMode),
            markerDesugaredLibraryIdentifier("com.tools.android:desugar_jdk_libs:1.0.10"),
            markerHasChecksums(false));
    Matcher<Marker> d8Matcher =
        allOf(
            markerTool(Tool.R8),
            markerCompilationMode(compilationMode),
            markerMinApi(apiLevel),
            markerR8Mode("compatibility"));
    Matcher<Marker> r8Matcher =
        allOf(markerTool(Tool.D8), markerCompilationMode(compilationMode), markerMinApi(apiLevel));
    if (shrinkDesugaredLibrary) {
      assertMarkersMatch(markers, ImmutableList.of(l8Matcher, d8Matcher));
    } else {
      assertMarkersMatch(markers, ImmutableList.of(l8Matcher, r8Matcher));
    }
  }
}