| // 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.jacoco; |
| |
| import static com.android.tools.r8.utils.DescriptorUtils.JAVA_PACKAGE_SEPARATOR; |
| import static com.android.tools.r8.utils.FileUtils.CLASS_EXTENSION; |
| import static com.android.tools.r8.utils.FileUtils.JAR_EXTENSION; |
| import static org.junit.Assert.assertEquals; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.ToolHelper; |
| import com.android.tools.r8.ToolHelper.ProcessResult; |
| import com.android.tools.r8.utils.ZipUtils; |
| import com.google.common.collect.ImmutableList; |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.util.List; |
| import org.junit.rules.TemporaryFolder; |
| |
| // Two sets of class files with and without JaCoCo offline instrumentation. |
| public class JacocoClasses { |
| |
| private final TemporaryFolder temp; |
| private final Path dir; |
| |
| private final Path originalJar; |
| private final Path instrumentedJar; |
| |
| // Create JacocoClasses with just one class provided as class file bytes. |
| public JacocoClasses(byte[] clazz, TemporaryFolder temp) throws IOException { |
| this(ImmutableList.of(clazz), temp); |
| } |
| |
| // Create JacocoClasses with multiple classes provided as class file bytes. |
| public JacocoClasses(List<byte[]> classes, TemporaryFolder temp) throws IOException { |
| this.temp = temp; |
| dir = temp.newFolder().toPath(); |
| |
| // Write the class to a .class file with package sub-directories. |
| Path original = dir.resolve("original"); |
| for (byte[] clazz : classes) { |
| String typeName = TestBase.extractClassName(clazz); |
| int lastDotIndex = typeName.lastIndexOf('.'); |
| String pkg = typeName.substring(0, lastDotIndex); |
| String baseFileName = typeName.substring(lastDotIndex + 1) + CLASS_EXTENSION; |
| Files.createDirectories(original); |
| Path packageDir = original.resolve(pkg.replace(JAVA_PACKAGE_SEPARATOR, File.separatorChar)); |
| Files.createDirectories(packageDir); |
| Path classFile = packageDir.resolve(baseFileName); |
| Files.write(classFile, clazz); |
| } |
| |
| // Run offline instrumentation. |
| Path instrumented = dir.resolve("instrumented"); |
| Files.createDirectories(instrumented); |
| runJacocoInstrumentation(original, instrumented); |
| originalJar = dir.resolve("original" + JAR_EXTENSION); |
| ZipUtils.zip(originalJar, original); |
| instrumentedJar = dir.resolve("instrumented" + JAR_EXTENSION); |
| ZipUtils.zip(instrumentedJar, instrumented); |
| } |
| |
| public Path getOriginal() { |
| return originalJar; |
| } |
| |
| public Path getInstrumented() { |
| return instrumentedJar; |
| } |
| |
| public List<String> generateReport(Path jacocoExec) throws IOException { |
| Path report = temp.newFolder().toPath().resolve("report.scv"); |
| ProcessResult result = ToolHelper.runJaCoCoReport(originalJar, jacocoExec, report); |
| assertEquals(result.toString(), 0, result.exitCode); |
| return Files.readAllLines(report); |
| } |
| |
| private void runJacocoInstrumentation(Path input, Path outdir) throws IOException { |
| ProcessResult result = ToolHelper.runJaCoCoInstrument(input, outdir); |
| assertEquals(result.toString(), 0, result.exitCode); |
| } |
| } |