src/test/java/com/android/tools/r8/annotations/SourceDebugExtensionTest.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.annotations;

import static com.android.tools.r8.ToolHelper.getFilesInTestFolderRelativeToClass;
import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent;
import static org.hamcrest.MatcherAssert.assertThat;

import com.android.tools.r8.CompilationFailedException;
import com.android.tools.r8.CompilationMode;
import com.android.tools.r8.KotlinCompilerTool.KotlinCompiler;
import com.android.tools.r8.KotlinTestBase;
import com.android.tools.r8.KotlinTestParameters;
import com.android.tools.r8.TestBase;
import com.android.tools.r8.TestParameters;
import com.android.tools.r8.retrace.KotlinInlineFunctionRetraceTest;
import com.android.tools.r8.shaking.ProguardKeepAttributes;
import com.android.tools.r8.utils.codeinspector.AnnotationSubject;
import com.android.tools.r8.utils.codeinspector.ClassSubject;
import com.android.tools.r8.utils.codeinspector.CodeInspector;
import java.io.IOException;
import java.nio.file.Path;
import java.util.List;
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 SourceDebugExtensionTest extends TestBase {

  private final TestParameters parameters;
  private final KotlinTestParameters kotlinTestParameters;

  @Parameters(name = "{0}, kotlinc: {1}")
  public static List<Object[]> data() {
    return buildParameters(
        getTestParameters().withAllRuntimesAndApiLevels().build(),
        getKotlinTestParameters().withAllCompilersAndTargetVersions().build());
  }

  public SourceDebugExtensionTest(
      TestParameters parameters, KotlinTestParameters kotlinTestParameters) {
    this.parameters = parameters;
    this.kotlinTestParameters = kotlinTestParameters;
  }

  @Test
  public void testR8() throws IOException, CompilationFailedException {
    KotlinCompiler kotlinc = kotlinTestParameters.getCompiler();
    Path kotlinSources =
        kotlinc(
                KotlinTestBase.getKotlincHostRuntime(parameters.getRuntime()),
                getStaticTemp(),
                kotlinc,
                kotlinTestParameters.getTargetVersion(),
                kotlinTestParameters.getLambdaGeneration())
            .addSourceFiles(
                getFilesInTestFolderRelativeToClass(
                    KotlinInlineFunctionRetraceTest.class, "kt", ".kt"))
            .compile();
    CodeInspector kotlinInspector = new CodeInspector(kotlinSources);
    inspectSourceDebugExtension(kotlinInspector);
    testForR8(parameters.getBackend())
        .addClasspathFiles(kotlinc.getKotlinStdlibJar(), kotlinc.getKotlinAnnotationJar())
        .addProgramFiles(kotlinSources)
        .addKeepAttributes(ProguardKeepAttributes.SOURCE_DEBUG_EXTENSION)
        .addKeepAllClassesRule()
        .setMode(CompilationMode.RELEASE)
        .setMinApi(parameters)
        .compile()
        .inspect(this::inspectSourceDebugExtension);
  }

  private void inspectSourceDebugExtension(CodeInspector inspector) {
    ClassSubject clazz = inspector.clazz("retrace.MainKt");
    assertThat(clazz, isPresent());
    AnnotationSubject sourceDebugExtensions =
        clazz.annotation("dalvik.annotation.SourceDebugExtension");
    assertThat(sourceDebugExtensions, isPresent());
  }
}