|  | // Copyright (c) 2017, 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.utils.InternalOptions.ASM_VERSION; | 
|  | import static com.google.common.collect.Lists.cartesianProduct; | 
|  | import static org.junit.Assert.assertEquals; | 
|  | import static org.junit.Assert.assertTrue; | 
|  |  | 
|  | import com.android.tools.r8.ClassFileConsumer.ArchiveConsumer; | 
|  | import com.android.tools.r8.DataResourceProvider.Visitor; | 
|  | import com.android.tools.r8.ToolHelper.ArtCommandBuilder; | 
|  | import com.android.tools.r8.ToolHelper.DexVm; | 
|  | import com.android.tools.r8.ToolHelper.ProcessResult; | 
|  | import com.android.tools.r8.code.Instruction; | 
|  | import com.android.tools.r8.dex.ApplicationReader; | 
|  | import com.android.tools.r8.errors.Unreachable; | 
|  | import com.android.tools.r8.graph.AppInfo; | 
|  | import com.android.tools.r8.graph.DexApplication; | 
|  | import com.android.tools.r8.graph.DexCode; | 
|  | import com.android.tools.r8.graph.DexEncodedMethod; | 
|  | import com.android.tools.r8.graph.DexMethod; | 
|  | import com.android.tools.r8.graph.SmaliWriter; | 
|  | import com.android.tools.r8.jasmin.JasminBuilder; | 
|  | import com.android.tools.r8.origin.Origin; | 
|  | import com.android.tools.r8.shaking.serviceloader.ServiceLoaderMultipleTest.Greeter; | 
|  | import com.android.tools.r8.transformers.ClassFileTransformer; | 
|  | import com.android.tools.r8.utils.AndroidApiLevel; | 
|  | import com.android.tools.r8.utils.AndroidApp; | 
|  | import com.android.tools.r8.utils.AndroidAppConsumers; | 
|  | import com.android.tools.r8.utils.DescriptorUtils; | 
|  | import com.android.tools.r8.utils.FileUtils; | 
|  | import com.android.tools.r8.utils.InternalOptions; | 
|  | import com.android.tools.r8.utils.PreloadedClassFileProvider; | 
|  | import com.android.tools.r8.utils.StringUtils; | 
|  | import com.android.tools.r8.utils.TestDescriptionWatcher; | 
|  | import com.android.tools.r8.utils.Timing; | 
|  | import com.android.tools.r8.utils.codeinspector.ClassSubject; | 
|  | import com.android.tools.r8.utils.codeinspector.CodeInspector; | 
|  | import com.android.tools.r8.utils.codeinspector.MethodSubject; | 
|  | import com.google.common.cache.CacheBuilder; | 
|  | import com.google.common.cache.CacheLoader; | 
|  | import com.google.common.collect.ImmutableList; | 
|  | import com.google.common.collect.Iterables; | 
|  | import com.google.common.collect.Lists; | 
|  | import com.google.common.collect.Sets; | 
|  | import com.google.common.io.ByteStreams; | 
|  | import java.io.File; | 
|  | import java.io.FileInputStream; | 
|  | import java.io.FileOutputStream; | 
|  | import java.io.IOException; | 
|  | import java.lang.reflect.Modifier; | 
|  | import java.nio.charset.StandardCharsets; | 
|  | import java.nio.file.Files; | 
|  | import java.nio.file.Path; | 
|  | import java.nio.file.Paths; | 
|  | import java.util.ArrayList; | 
|  | import java.util.Arrays; | 
|  | import java.util.Collection; | 
|  | import java.util.Collections; | 
|  | import java.util.LinkedList; | 
|  | import java.util.List; | 
|  | import java.util.Objects; | 
|  | import java.util.Set; | 
|  | import java.util.concurrent.ExecutionException; | 
|  | import java.util.function.BiFunction; | 
|  | import java.util.function.Consumer; | 
|  | import java.util.function.Function; | 
|  | import java.util.jar.JarOutputStream; | 
|  | import java.util.stream.Collectors; | 
|  | import java.util.stream.Stream; | 
|  | import java.util.zip.ZipEntry; | 
|  | import java.util.zip.ZipOutputStream; | 
|  | import org.junit.AfterClass; | 
|  | import org.junit.BeforeClass; | 
|  | import org.junit.Rule; | 
|  | import org.junit.rules.TemporaryFolder; | 
|  | import org.objectweb.asm.ClassReader; | 
|  | import org.objectweb.asm.ClassVisitor; | 
|  |  | 
|  | public class TestBase { | 
|  |  | 
|  | public enum Backend { | 
|  | CF, | 
|  | DEX | 
|  | } | 
|  |  | 
|  | public static R8FullTestBuilder testForR8(TemporaryFolder temp, Backend backend) { | 
|  | return R8FullTestBuilder.create(new TestState(temp), backend); | 
|  | } | 
|  |  | 
|  | public static R8CompatTestBuilder testForR8Compat( | 
|  | TemporaryFolder temp, Backend backend, boolean forceProguardCompatibility) { | 
|  | return R8CompatTestBuilder.create(new TestState(temp), backend, forceProguardCompatibility); | 
|  | } | 
|  |  | 
|  | public static ExternalR8TestBuilder testForExternalR8(TemporaryFolder temp, Backend backend) { | 
|  | return ExternalR8TestBuilder.create(new TestState(temp), backend); | 
|  | } | 
|  |  | 
|  | public static D8TestBuilder testForD8(TemporaryFolder temp) { | 
|  | return D8TestBuilder.create(new TestState(temp)); | 
|  | } | 
|  |  | 
|  | public static DXTestBuilder testForDX(TemporaryFolder temp) { | 
|  | return DXTestBuilder.create(new TestState(temp)); | 
|  | } | 
|  |  | 
|  | public static JvmTestBuilder testForJvm(TemporaryFolder temp) { | 
|  | return JvmTestBuilder.create(new TestState(temp)); | 
|  | } | 
|  |  | 
|  | public static ProguardTestBuilder testForProguard(TemporaryFolder temp) { | 
|  | return ProguardTestBuilder.create(new TestState(temp)); | 
|  | } | 
|  |  | 
|  | public static GenerateMainDexListTestBuilder testForMainDexListGenerator(TemporaryFolder temp) { | 
|  | return GenerateMainDexListTestBuilder.create(new TestState(temp)); | 
|  | } | 
|  |  | 
|  | public R8FullTestBuilder testForR8(Backend backend) { | 
|  | return testForR8(temp, backend); | 
|  | } | 
|  |  | 
|  | public R8CompatTestBuilder testForR8Compat(Backend backend) { | 
|  | return testForR8Compat(backend, true); | 
|  | } | 
|  |  | 
|  | public R8CompatTestBuilder testForR8Compat(Backend backend, boolean forceProguardCompatibility) { | 
|  | return testForR8Compat(temp, backend, forceProguardCompatibility); | 
|  | } | 
|  |  | 
|  | public ExternalR8TestBuilder testForExternalR8(Backend backend) { | 
|  | return testForExternalR8(temp, backend); | 
|  | } | 
|  |  | 
|  | public D8TestBuilder testForD8() { | 
|  | return testForD8(temp); | 
|  | } | 
|  |  | 
|  | public DXTestBuilder testForDX() { | 
|  | return testForDX(temp); | 
|  | } | 
|  |  | 
|  | public JvmTestBuilder testForJvm() { | 
|  | return testForJvm(temp); | 
|  | } | 
|  |  | 
|  | public TestBuilder<?, ?> testForRuntime(TestRuntime runtime, AndroidApiLevel apiLevel) { | 
|  | if (runtime.isCf()) { | 
|  | return testForJvm(); | 
|  | } else { | 
|  | assert runtime.isDex(); | 
|  | D8TestBuilder d8TestBuilder = testForD8(); | 
|  | d8TestBuilder.setMinApi(apiLevel); | 
|  | return d8TestBuilder; | 
|  | } | 
|  | } | 
|  |  | 
|  | public ProguardTestBuilder testForProguard() { | 
|  | return testForProguard(temp); | 
|  | } | 
|  |  | 
|  | public GenerateMainDexListTestBuilder testForMainDexListGenerator() { | 
|  | return testForMainDexListGenerator(temp); | 
|  | } | 
|  |  | 
|  | public static ClassFileTransformer transformer(Class<?> clazz) throws IOException { | 
|  | return ClassFileTransformer.create(clazz); | 
|  | } | 
|  |  | 
|  | // Actually running Proguard should only be during development. | 
|  | private static final boolean RUN_PROGUARD = System.getProperty("run_proguard") != null; | 
|  | // Actually running r8.jar in a forked process. | 
|  | private static final boolean RUN_R8_JAR = System.getProperty("run_r8_jar") != null; | 
|  |  | 
|  | @Rule | 
|  | public TemporaryFolder temp = ToolHelper.getTemporaryFolderForTest(); | 
|  |  | 
|  | @Rule | 
|  | public TestDescriptionWatcher watcher = new TestDescriptionWatcher(); | 
|  |  | 
|  | private static TemporaryFolder staticTemp = null; | 
|  |  | 
|  | @BeforeClass | 
|  | public static void testBaseBeforeClassSetup() throws IOException { | 
|  | assert staticTemp == null; | 
|  | staticTemp = ToolHelper.getTemporaryFolderForTest(); | 
|  | staticTemp.create(); | 
|  | } | 
|  |  | 
|  | @AfterClass | 
|  | public static void testBaseBeforeClassTearDown() { | 
|  | assert staticTemp != null; | 
|  | staticTemp.delete(); | 
|  | staticTemp = null; | 
|  | } | 
|  |  | 
|  | public static TemporaryFolder getStaticTemp() { | 
|  | return staticTemp; | 
|  | } | 
|  |  | 
|  | public static TestParametersBuilder getTestParameters() { | 
|  | return TestParametersBuilder.builder(); | 
|  | } | 
|  |  | 
|  | protected static <S, T, E extends Throwable> Function<S, T> memoizeFunction( | 
|  | ThrowingFunction<S, T, E> fn) { | 
|  | return CacheBuilder.newBuilder() | 
|  | .build( | 
|  | CacheLoader.from( | 
|  | b -> { | 
|  | try { | 
|  | return fn.applyWithRuntimeException(b); | 
|  | } catch (Throwable e) { | 
|  | throw new RuntimeException(e); | 
|  | } | 
|  | })); | 
|  | } | 
|  |  | 
|  | protected static <S, T, U, E extends Throwable> BiFunction<S, T, U> memoizeBiFunction( | 
|  | ThrowingBiFunction<S, T, U, E> fn) { | 
|  | class Pair { | 
|  | final S first; | 
|  | final T second; | 
|  |  | 
|  | public Pair(S first, T second) { | 
|  | this.first = first; | 
|  | this.second = second; | 
|  | } | 
|  |  | 
|  | @Override | 
|  | public boolean equals(Object obj) { | 
|  | if (!(obj instanceof Pair)) { | 
|  | return false; | 
|  | } | 
|  | Pair other = (Pair) obj; | 
|  | return Objects.equals(first, other.first) && Objects.equals(second, other.second); | 
|  | } | 
|  |  | 
|  | @Override | 
|  | public int hashCode() { | 
|  | return Objects.hash(first, second); | 
|  | } | 
|  | } | 
|  | final Function<Pair, U> memoizedFn = memoizeFunction(pair -> fn.apply(pair.first, pair.second)); | 
|  | return (a, b) -> memoizedFn.apply(new Pair(a, b)); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Check if tests should also run Proguard when applicable. | 
|  | */ | 
|  | protected boolean isRunProguard() { | 
|  | return RUN_PROGUARD; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Check if tests should run R8 in a forked process when applicable. | 
|  | */ | 
|  | protected boolean isRunR8Jar() { | 
|  | return RUN_R8_JAR; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Write lines of text to a temporary file. | 
|  | * | 
|  | * The file will include a line separator after the last line. | 
|  | */ | 
|  | protected Path writeTextToTempFile(String... lines) throws IOException { | 
|  | return writeTextToTempFile(System.lineSeparator(), Arrays.asList(lines)); | 
|  | } | 
|  |  | 
|  | protected void writeTextToTempFile(Path file, String... lines) throws IOException { | 
|  | writeTextToTempFile(file, System.lineSeparator(), Arrays.asList(lines)); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Write lines of text to a temporary file, along with the specified line separator. | 
|  | * | 
|  | * The file will include a line separator after the last line. | 
|  | */ | 
|  | protected Path writeTextToTempFile(String lineSeparator, List<String> lines) | 
|  | throws IOException { | 
|  | return writeTextToTempFile(lineSeparator, lines, true); | 
|  | } | 
|  |  | 
|  | protected void writeTextToTempFile(Path file, String lineSeparator, List<String> lines) | 
|  | throws IOException { | 
|  | writeTextToTempFile(file, lineSeparator, lines, true); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Write lines of text to a temporary file, along with the specified line separator. | 
|  | * | 
|  | * The argument <code>includeTerminatingLineSeparator</code> control if the file will include | 
|  | * a line separator after the last line. | 
|  | */ | 
|  | protected Path writeTextToTempFile( | 
|  | String lineSeparator, List<String> lines, boolean includeTerminatingLineSeparator) | 
|  | throws IOException { | 
|  | Path file = temp.newFile().toPath(); | 
|  | writeTextToTempFile(file, lineSeparator, lines, includeTerminatingLineSeparator); | 
|  | return file; | 
|  | } | 
|  |  | 
|  | protected void writeTextToTempFile( | 
|  | Path file, | 
|  | String lineSeparator, | 
|  | List<String> lines, | 
|  | boolean includeTerminatingLineSeparator) | 
|  | throws IOException { | 
|  | String contents = String.join(lineSeparator, lines); | 
|  | if (includeTerminatingLineSeparator) { | 
|  | contents += lineSeparator; | 
|  | } | 
|  | Files.write(file, contents.getBytes(StandardCharsets.UTF_8)); | 
|  | } | 
|  |  | 
|  | /** Build an AndroidApp with the specified test classes as byte array. */ | 
|  | protected AndroidApp buildAndroidApp(byte[]... classes) { | 
|  | return buildAndroidApp(Arrays.asList(classes)); | 
|  | } | 
|  |  | 
|  | /** Build an AndroidApp with the specified test classes as byte array. */ | 
|  | protected AndroidApp buildAndroidApp(List<byte[]> classes) { | 
|  | AndroidApp.Builder builder = AndroidApp.builder(); | 
|  | for (byte[] clazz : classes) { | 
|  | builder.addClassProgramData(clazz, Origin.unknown()); | 
|  | } | 
|  | builder.addLibraryFiles(ToolHelper.getAndroidJar(AndroidApiLevel.N.getLevel())); | 
|  | return builder.build(); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Build an AndroidApp with the specified jar. | 
|  | */ | 
|  | protected AndroidApp readJar(Path jar) { | 
|  | return AndroidApp.builder() | 
|  | .addProgramResourceProvider(ArchiveProgramResourceProvider.fromArchive(jar)) | 
|  | .build(); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Build an AndroidApp with the specified test classes. | 
|  | */ | 
|  | protected static AndroidApp readClasses(Class... classes) throws IOException { | 
|  | return readClasses(Arrays.asList(classes)); | 
|  | } | 
|  |  | 
|  | /** Build an AndroidApp with the specified test classes. */ | 
|  | protected static AndroidApp readClasses(List<Class<?>> classes) throws IOException { | 
|  | return readClasses(classes, Collections.emptyList()); | 
|  | } | 
|  |  | 
|  | /** Build an AndroidApp with the specified test classes. */ | 
|  | protected static AndroidApp readClasses( | 
|  | List<Class<?>> programClasses, List<Class<?>> libraryClasses) throws IOException { | 
|  | AndroidApp.Builder builder = AndroidApp.builder(); | 
|  | for (Class clazz : programClasses) { | 
|  | builder.addProgramFiles(ToolHelper.getClassFileForTestClass(clazz)); | 
|  | } | 
|  | if (!libraryClasses.isEmpty()) { | 
|  | PreloadedClassFileProvider.Builder libraryBuilder = PreloadedClassFileProvider.builder(); | 
|  | for (Class clazz : libraryClasses) { | 
|  | Path file = ToolHelper.getClassFileForTestClass(clazz); | 
|  | libraryBuilder.addResource(DescriptorUtils.javaTypeToDescriptor(clazz.getCanonicalName()), | 
|  | Files.readAllBytes(file)); | 
|  | } | 
|  | builder.addLibraryResourceProvider(libraryBuilder.build()); | 
|  | } | 
|  | return builder.build(); | 
|  | } | 
|  |  | 
|  | protected static AndroidApp readClassesAndRuntimeJar( | 
|  | List<Class<?>> programClasses, Backend backend) throws IOException { | 
|  | AndroidApp.Builder builder = AndroidApp.builder(); | 
|  | for (Class clazz : programClasses) { | 
|  | builder.addProgramFiles(ToolHelper.getClassFileForTestClass(clazz)); | 
|  | } | 
|  | if (backend == Backend.DEX) { | 
|  | AndroidApiLevel androidLibrary = ToolHelper.getMinApiLevelForDexVm(); | 
|  | builder.addLibraryFiles(ToolHelper.getAndroidJar(androidLibrary)); | 
|  | } else { | 
|  | assert backend == Backend.CF; | 
|  | builder.addLibraryFiles(ToolHelper.getJava8RuntimeJar()); | 
|  | } | 
|  | return builder.build(); | 
|  | } | 
|  |  | 
|  | /** Build an AndroidApp from the specified program files. */ | 
|  | protected AndroidApp readProgramFiles(Path... programFiles) throws IOException { | 
|  | return AndroidApp.builder().addProgramFiles(programFiles).build(); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Copy test classes to the specified directory. | 
|  | */ | 
|  | protected void copyTestClasses(Path dest, Class... classes) throws IOException { | 
|  | for (Class clazz : classes) { | 
|  | Path path = dest.resolve(clazz.getCanonicalName().replace('.', '/') + ".class"); | 
|  | Files.createDirectories(path.getParent()); | 
|  | Files.copy(ToolHelper.getClassFileForTestClass(clazz), path); | 
|  | } | 
|  | } | 
|  |  | 
|  | /** Create a temporary JAR file containing the specified test classes. */ | 
|  | protected Path jarTestClasses(Class<?>... classes) throws IOException { | 
|  | return jarTestClasses(Arrays.asList(classes), null); | 
|  | } | 
|  |  | 
|  | /** Create a temporary JAR file containing the specified test classes. */ | 
|  | protected Path jarTestClasses(Iterable<Class<?>> classes) throws IOException { | 
|  | return jarTestClasses(classes, null); | 
|  | } | 
|  |  | 
|  | /** Create a temporary JAR file containing the specified test classes and data resources. */ | 
|  | protected Path jarTestClasses(Iterable<Class<?>> classes, List<DataResource> dataResources) | 
|  | throws IOException { | 
|  | Path jar = File.createTempFile("junit", ".jar", temp.getRoot()).toPath(); | 
|  | try (JarOutputStream out = new JarOutputStream(new FileOutputStream(jar.toFile()))) { | 
|  | addTestClassesToJar(out, classes); | 
|  | if (dataResources != null) { | 
|  | addDataResourcesToJar(out, dataResources); | 
|  | } | 
|  | } | 
|  | return jar; | 
|  | } | 
|  |  | 
|  | /** Create a temporary JAR file containing the specified test classes. */ | 
|  | protected void addTestClassesToJar(JarOutputStream out, Iterable<Class<?>> classes) | 
|  | throws IOException { | 
|  | for (Class clazz : classes) { | 
|  | try (FileInputStream in = | 
|  | new FileInputStream(ToolHelper.getClassFileForTestClass(clazz).toFile())) { | 
|  | out.putNextEntry(new ZipEntry(ToolHelper.getJarEntryForTestClass(clazz))); | 
|  | ByteStreams.copy(in, out); | 
|  | out.closeEntry(); | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | /** Create a temporary JAR file containing the specified data resources. */ | 
|  | protected void addDataResourcesToJar( | 
|  | JarOutputStream out, List<? extends DataResource> dataResources) throws IOException { | 
|  | try { | 
|  | for (DataResource dataResource : dataResources) { | 
|  | String name = dataResource.getName(); | 
|  | boolean isDirectory = dataResource instanceof DataDirectoryResource; | 
|  | if (isDirectory && !name.endsWith("/")) { | 
|  | // Directory entries must end with a slash. Otherwise they will be empty files. | 
|  | name += "/"; | 
|  | } | 
|  | out.putNextEntry(new ZipEntry(name)); | 
|  | if (!isDirectory) { | 
|  | ByteStreams.copy(((DataEntryResource) dataResource).getByteStream(), out); | 
|  | } | 
|  | out.closeEntry(); | 
|  | } | 
|  | } catch (ResourceException e) { | 
|  | throw new IOException("Resource error", e); | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Creates a new, temporary JAR that contains all the entries from the given JAR as well as the | 
|  | * specified data resources. The given JAR is left unchanged. | 
|  | */ | 
|  | protected Path addDataResourcesToExistingJar( | 
|  | Path existingJar, List<? extends DataResource> dataResources) throws IOException { | 
|  | Path newJar = File.createTempFile("app", FileUtils.JAR_EXTENSION, temp.getRoot()).toPath(); | 
|  | try (JarOutputStream out = new JarOutputStream(new FileOutputStream(newJar.toFile()))) { | 
|  | ArchiveProgramResourceProvider.fromArchive(existingJar) | 
|  | .readArchive( | 
|  | (entry, stream) -> { | 
|  | out.putNextEntry(new ZipEntry(entry.getEntryName())); | 
|  | ByteStreams.copy(stream, out); | 
|  | out.closeEntry(); | 
|  | }); | 
|  | addDataResourcesToJar(out, dataResources); | 
|  | } | 
|  | return newJar; | 
|  | } | 
|  |  | 
|  | protected AppInfo getAppInfo(AndroidApp application) { | 
|  | try { | 
|  | DexApplication dexApplication = | 
|  | new ApplicationReader( | 
|  | application, new InternalOptions(), new Timing("TestBase.getAppInfo")) | 
|  | .read(); | 
|  | return new AppInfo(dexApplication); | 
|  | } catch (IOException | ExecutionException e) { | 
|  | throw new RuntimeException(e); | 
|  | } | 
|  | } | 
|  |  | 
|  | /** Returns a list containing all the data resources in the given app. */ | 
|  | public static List<DataEntryResource> getDataResources(AndroidApp app) throws ResourceException { | 
|  | List<DataEntryResource> dataResources = new ArrayList<>(); | 
|  | for (ProgramResourceProvider programResourceProvider : app.getProgramResourceProviders()) { | 
|  | dataResources.addAll(getDataResources(programResourceProvider.getDataResourceProvider())); | 
|  | } | 
|  | return dataResources; | 
|  | } | 
|  |  | 
|  | public static List<DataEntryResource> getDataResources(DataResourceProvider dataResourceProvider) | 
|  | throws ResourceException { | 
|  | List<DataEntryResource> dataResources = new ArrayList<>(); | 
|  | if (dataResourceProvider != null) { | 
|  | dataResourceProvider.accept( | 
|  | new Visitor() { | 
|  | @Override | 
|  | public void visit(DataDirectoryResource directory) {} | 
|  |  | 
|  | @Override | 
|  | public void visit(DataEntryResource file) { | 
|  | dataResources.add(file); | 
|  | } | 
|  | }); | 
|  | } | 
|  | return dataResources; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Create a temporary JAR file containing all test classes in a package. | 
|  | */ | 
|  | protected Path jarTestClassesInPackage(Package pkg) throws IOException { | 
|  | Path jar = File.createTempFile("junit", ".jar", temp.getRoot()).toPath(); | 
|  | String zipEntryPrefix = ToolHelper.getJarEntryForTestPackage(pkg) + "/"; | 
|  | try (JarOutputStream out = new JarOutputStream(new FileOutputStream(jar.toFile()))) { | 
|  | for (Path file : ToolHelper.getClassFilesForTestPackage(pkg)) { | 
|  | try (FileInputStream in = new FileInputStream(file.toFile())) { | 
|  | out.putNextEntry(new ZipEntry(zipEntryPrefix + file.getFileName())); | 
|  | ByteStreams.copy(in, out); | 
|  | out.closeEntry(); | 
|  | } | 
|  | } | 
|  | } | 
|  | return jar; | 
|  | } | 
|  |  | 
|  | /** Create a temporary JAR file containing the specified test classes. */ | 
|  | protected Path jarTestClasses(List<Class<?>> classes) throws IOException { | 
|  | return jarTestClasses(classes.toArray(new Class<?>[]{})); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Get the class name generated by javac. | 
|  | */ | 
|  | protected static String getJavacGeneratedClassName(Class clazz) { | 
|  | List<String> parts = Lists.newArrayList(clazz.getCanonicalName().split("\\.")); | 
|  | Class enclosing = clazz; | 
|  | while (enclosing.getEnclosingClass() != null) { | 
|  | parts.set(parts.size() - 2, parts.get(parts.size() - 2) + "$" + parts.get(parts.size() - 1)); | 
|  | parts.remove(parts.size() - 1); | 
|  | enclosing = clazz.getEnclosingClass(); | 
|  | } | 
|  | return String.join(".", parts); | 
|  | } | 
|  |  | 
|  | protected static List<Object[]> buildParameters(Object... arraysOrIterables) { | 
|  | Function<Object, List<Object>> arrayOrIterableToList = | 
|  | arrayOrIterable -> { | 
|  | if (arrayOrIterable.getClass().isArray()) { | 
|  | Object[] array = (Object[]) arrayOrIterable; | 
|  | return Arrays.asList(array); | 
|  | } else { | 
|  | assert arrayOrIterable instanceof Iterable<?>; | 
|  | Iterable<?> iterable = (Iterable) arrayOrIterable; | 
|  | return ImmutableList.builder().addAll(iterable).build(); | 
|  | } | 
|  | }; | 
|  | List<List<Object>> lists = | 
|  | Arrays.stream(arraysOrIterables).map(arrayOrIterableToList).collect(Collectors.toList()); | 
|  | return cartesianProduct(lists).stream().map(List::toArray).collect(Collectors.toList()); | 
|  | } | 
|  |  | 
|  | /** Compile an application with D8. */ | 
|  | protected AndroidApp compileWithD8(AndroidApp app) throws CompilationFailedException { | 
|  | D8Command.Builder builder = ToolHelper.prepareD8CommandBuilder(app); | 
|  | AndroidAppConsumers appSink = new AndroidAppConsumers(builder); | 
|  | D8.run(builder.build()); | 
|  | return appSink.build(); | 
|  | } | 
|  |  | 
|  | /** Compile an application with D8. */ | 
|  | protected AndroidApp compileWithD8(AndroidApp app, Consumer<InternalOptions> optionsConsumer) | 
|  | throws CompilationFailedException { | 
|  | return ToolHelper.runD8(app, optionsConsumer); | 
|  | } | 
|  |  | 
|  | /** Compile an application with R8. */ | 
|  | protected AndroidApp compileWithR8(Class... classes) | 
|  | throws IOException, CompilationFailedException { | 
|  | return ToolHelper.runR8(readClasses(classes)); | 
|  | } | 
|  |  | 
|  | /** Compile an application with R8. */ | 
|  | protected AndroidApp compileWithR8(List<Class<?>> classes) | 
|  | throws IOException, CompilationFailedException { | 
|  | R8Command command = ToolHelper.prepareR8CommandBuilder(readClasses(classes)).build(); | 
|  | return ToolHelper.runR8(command); | 
|  | } | 
|  |  | 
|  | /** Compile an application with R8. */ | 
|  | protected AndroidApp compileWithR8( | 
|  | List<Class<?>> classes, Consumer<InternalOptions> optionsConsumer) | 
|  | throws IOException, CompilationFailedException { | 
|  | R8Command command = ToolHelper.prepareR8CommandBuilder(readClasses(classes)).build(); | 
|  | return ToolHelper.runR8(command, optionsConsumer); | 
|  | } | 
|  |  | 
|  | /** Compile an application with R8. */ | 
|  | protected AndroidApp compileWithR8(AndroidApp app) throws CompilationFailedException { | 
|  | R8Command command = ToolHelper.prepareR8CommandBuilder(app).build(); | 
|  | return ToolHelper.runR8(command); | 
|  | } | 
|  |  | 
|  | /** Compile an application with R8. */ | 
|  | protected AndroidApp compileWithR8(AndroidApp app, Consumer<InternalOptions> optionsConsumer) | 
|  | throws IOException, CompilationFailedException { | 
|  | R8Command command = ToolHelper.prepareR8CommandBuilder(app) | 
|  | .setDisableTreeShaking(true) | 
|  | .setDisableMinification(true) | 
|  | .addProguardConfiguration(ImmutableList.of("-keepattributes *"), Origin.unknown()) | 
|  | .build(); | 
|  |  | 
|  | return ToolHelper.runR8(command, optionsConsumer); | 
|  | } | 
|  |  | 
|  | /** Compile an application with R8 using the supplied proguard configuration. */ | 
|  | protected AndroidApp compileWithR8(List<Class<?>> classes, String proguardConfig) | 
|  | throws IOException, CompilationFailedException { | 
|  | return compileWithR8(readClasses(classes), proguardConfig); | 
|  | } | 
|  |  | 
|  | /** Compile an application with R8 using the supplied proguard configuration. */ | 
|  | protected AndroidApp compileWithR8( | 
|  | List<Class<?>> classes, String proguardConfig, Consumer<InternalOptions> optionsConsumer) | 
|  | throws IOException, CompilationFailedException { | 
|  | return compileWithR8(readClasses(classes), proguardConfig, optionsConsumer); | 
|  | } | 
|  |  | 
|  | /** Compile an application with R8 using the supplied proguard configuration. */ | 
|  | protected AndroidApp compileWithR8(List<Class<?>> classes, Path proguardConfig) | 
|  | throws IOException, CompilationFailedException { | 
|  | return compileWithR8(readClasses(classes), proguardConfig); | 
|  | } | 
|  |  | 
|  | /** Compile an application with R8 using the supplied proguard configuration. */ | 
|  | protected AndroidApp compileWithR8(AndroidApp app, Path proguardConfig) | 
|  | throws IOException, CompilationFailedException { | 
|  | R8Command command = | 
|  | ToolHelper.prepareR8CommandBuilder(app) | 
|  | .addProguardConfigurationFiles(proguardConfig) | 
|  | .build(); | 
|  | return ToolHelper.runR8(command); | 
|  | } | 
|  |  | 
|  | /** Compile an application with R8 using the supplied proguard configuration. */ | 
|  | protected AndroidApp compileWithR8(AndroidApp app, String proguardConfig) | 
|  | throws IOException, CompilationFailedException { | 
|  | return compileWithR8(app, proguardConfig, null, Backend.DEX); | 
|  | } | 
|  |  | 
|  | /** Compile an application with R8 using the supplied proguard configuration. */ | 
|  | protected AndroidApp compileWithR8(AndroidApp app, String proguardConfig, Backend backend) | 
|  | throws IOException, CompilationFailedException { | 
|  | return compileWithR8(app, proguardConfig, null, backend); | 
|  | } | 
|  |  | 
|  | /** Compile an application with R8 using the supplied proguard configuration. */ | 
|  | protected AndroidApp compileWithR8( | 
|  | AndroidApp app, String proguardConfig, Consumer<InternalOptions> optionsConsumer) | 
|  | throws IOException, CompilationFailedException { | 
|  | return compileWithR8(app, proguardConfig, optionsConsumer, Backend.DEX); | 
|  | } | 
|  |  | 
|  | /** Compile an application with R8 using the supplied proguard configuration and backend. */ | 
|  | protected AndroidApp compileWithR8( | 
|  | AndroidApp app, | 
|  | String proguardConfig, | 
|  | Consumer<InternalOptions> optionsConsumer, | 
|  | Backend backend) | 
|  | throws CompilationFailedException { | 
|  | R8Command command = | 
|  | ToolHelper.prepareR8CommandBuilder(app, emptyConsumer(backend)) | 
|  | .addProguardConfiguration(ImmutableList.of(proguardConfig), Origin.unknown()) | 
|  | .addLibraryFiles(runtimeJar(backend)) | 
|  | .build(); | 
|  | return ToolHelper.runR8(command, optionsConsumer); | 
|  | } | 
|  |  | 
|  | /** Compile an application with R8 using the supplied proguard configuration. */ | 
|  | protected AndroidApp compileWithR8( | 
|  | AndroidApp app, Path proguardConfig, Consumer<InternalOptions> optionsConsumer) | 
|  | throws CompilationFailedException { | 
|  | R8Command command = | 
|  | ToolHelper.prepareR8CommandBuilder(app) | 
|  | .addProguardConfigurationFiles(proguardConfig) | 
|  | .build(); | 
|  | return ToolHelper.runR8(command, optionsConsumer); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Generate a Proguard configuration for keeping the "static void main(String[])" method of the | 
|  | * specified class. | 
|  | */ | 
|  | public static String keepMainProguardConfiguration(Class clazz) { | 
|  | return keepMainProguardConfiguration(clazz, ImmutableList.of()); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Generate a Proguard configuration for keeping the "static void main(String[])" method of the | 
|  | * specified class. | 
|  | */ | 
|  | public static String keepMainProguardConfiguration(Class clazz, List<String> additionalLines) { | 
|  | String modifier = (clazz.getModifiers() & Modifier.PUBLIC) == Modifier.PUBLIC ? "public " : ""; | 
|  | return String.join(System.lineSeparator(), | 
|  | Iterables.concat(ImmutableList.of( | 
|  | "-keep " + modifier + "class " + getJavacGeneratedClassName(clazz) + " {", | 
|  | "  public static void main(java.lang.String[]);", | 
|  | "}", | 
|  | "-printmapping"), | 
|  | additionalLines)); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Generate a Proguard configuration for keeping the "public static void main(String[])" method of | 
|  | * the specified class. | 
|  | * | 
|  | * The class is assumed to be public. | 
|  | */ | 
|  | public static String keepMainProguardConfiguration(String clazz) { | 
|  | return "-keep public class " + clazz + " {\n" | 
|  | + "  public static void main(java.lang.String[]);\n" | 
|  | + "}\n" | 
|  | + "-printmapping\n"; | 
|  | } | 
|  |  | 
|  | public static String noShrinkingNoMinificationProguardConfiguration() { | 
|  | return "-dontshrink\n" | 
|  | + "-dontobfuscate\n"; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Generate a Proguard configuration for keeping the "static void main(String[])" method of the | 
|  | * specified class and specify if -allowaccessmodification and -dontobfuscate are added as well. | 
|  | */ | 
|  | public static String keepMainProguardConfiguration( | 
|  | Class clazz, boolean allowaccessmodification, boolean obfuscate) { | 
|  | return keepMainProguardConfiguration(clazz) | 
|  | + (allowaccessmodification ? "-allowaccessmodification\n" : "") | 
|  | + (obfuscate ? "-printmapping\n" : "-dontobfuscate\n"); | 
|  | } | 
|  |  | 
|  | public static String keepMainProguardConfiguration( | 
|  | String clazz, boolean allowaccessmodification, boolean obfuscate) { | 
|  | return keepMainProguardConfiguration(clazz) | 
|  | + (allowaccessmodification ? "-allowaccessmodification\n" : "") | 
|  | + (obfuscate ? "-printmapping\n" : "-dontobfuscate\n"); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Generate a Proguard configuration for keeping the "static void main(String[])" method of the | 
|  | * specified class and add rules to inline methods with the inlining annotation. | 
|  | */ | 
|  | public static String keepMainProguardConfigurationWithInliningAnnotation(Class clazz) { | 
|  | return "-forceinline class * { @com.android.tools.r8.ForceInline *; }" | 
|  | + System.lineSeparator() | 
|  | + "-neverinline class * { @com.android.tools.r8.NeverInline *; }" | 
|  | + System.lineSeparator() | 
|  | + keepMainProguardConfiguration(clazz); | 
|  | } | 
|  |  | 
|  | public static String neverMergeRule() { | 
|  | return "-nevermerge @com.android.tools.r8.NeverMerge class *"; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Run application on the specified version of Art with the specified main class. | 
|  | */ | 
|  | protected ProcessResult runOnArtRaw(AndroidApp app, String mainClass, | 
|  | Consumer<ArtCommandBuilder> cmdBuilder, DexVm version) throws IOException { | 
|  | Path out = File.createTempFile("junit", ".zip", temp.getRoot()).toPath(); | 
|  | app.writeToZip(out, OutputMode.DexIndexed); | 
|  | return ToolHelper.runArtRaw( | 
|  | ImmutableList.of(out.toString()), mainClass, cmdBuilder, version, false); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Run application on the specified version of Art with the specified main class. | 
|  | */ | 
|  | protected ProcessResult runOnArtRaw(AndroidApp app, String mainClass, DexVm version) | 
|  | throws IOException { | 
|  | return runOnArtRaw(app, mainClass, null, version); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Run application on Art with the specified main class. | 
|  | */ | 
|  | protected ProcessResult runOnArtRaw(AndroidApp app, String mainClass) throws IOException { | 
|  | return runOnArtRaw(app, mainClass, null); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Run application on Art with the specified main class. | 
|  | */ | 
|  | protected ProcessResult runOnArtRaw(AndroidApp app, Class mainClass) throws IOException { | 
|  | return runOnArtRaw(app, mainClass.getTypeName()); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Run application on Art with the specified main class and provided arguments. | 
|  | */ | 
|  | protected String runOnArt(AndroidApp app, Class mainClass, String... args) throws IOException { | 
|  | return runOnArt(app, mainClass, Arrays.asList(args)); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Run application on Art with the specified main class and provided arguments. | 
|  | */ | 
|  | protected String runOnArt(AndroidApp app, String mainClass, List<String> args) | 
|  | throws IOException { | 
|  | return runOnArt(app, mainClass, args, null); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Run application on Art with the specified main class, provided arguments, and specified VM | 
|  | * version. | 
|  | */ | 
|  | protected String runOnArt(AndroidApp app, String mainClass, List<String> args, DexVm dexVm) | 
|  | throws IOException { | 
|  | Path out = File.createTempFile("junit", ".zip", temp.getRoot()).toPath(); | 
|  | app.writeToZip(out, OutputMode.DexIndexed); | 
|  | return ToolHelper.runArtNoVerificationErrors( | 
|  | ImmutableList.of(out.toString()), mainClass, | 
|  | builder -> { | 
|  | builder.appendArtOption("-ea"); | 
|  | for (String arg : args) { | 
|  | builder.appendProgramArgument(arg); | 
|  | } | 
|  | }, | 
|  | dexVm); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Run application on Art with the specified main class and provided arguments. | 
|  | */ | 
|  | protected String runOnArt(AndroidApp app, Class mainClass, List<String> args) throws IOException { | 
|  | return runOnArt(app, mainClass.getCanonicalName(), args); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Run application on Art with the specified main class and provided arguments. | 
|  | */ | 
|  | protected String runOnArt(AndroidApp app, String mainClass, String... args) throws IOException { | 
|  | return runOnArt(app, mainClass, Arrays.asList(args)); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Run a single class application on Java. | 
|  | */ | 
|  | protected String runOnJava(Class mainClass) throws Exception { | 
|  | ProcessResult result = ToolHelper.runJava(mainClass); | 
|  | ToolHelper.failOnProcessFailure(result); | 
|  | ToolHelper.failOnVerificationErrors(result); | 
|  | return result.stdout; | 
|  | } | 
|  |  | 
|  | /** Run application on Java with the specified main class and provided arguments. */ | 
|  | protected String runOnJava(AndroidApp app, Class mainClass, String... args) throws IOException { | 
|  | return runOnJava(app, mainClass, Arrays.asList(args)); | 
|  | } | 
|  |  | 
|  | /** Run application on Java with the specified main class and provided arguments. */ | 
|  | protected String runOnJava(AndroidApp app, Class mainClass, List<String> args) | 
|  | throws IOException { | 
|  | return runOnJava(app, mainClass.getCanonicalName(), args); | 
|  | } | 
|  |  | 
|  | /** Run application on Java with the specified main class and provided arguments. */ | 
|  | protected String runOnJava(AndroidApp app, String mainClass, String... args) throws IOException { | 
|  | return runOnJava(app, mainClass, Arrays.asList(args)); | 
|  | } | 
|  |  | 
|  | /** Run application on Java with the specified main class and provided arguments. */ | 
|  | protected String runOnJava(AndroidApp app, String mainClass, List<String> args) | 
|  | throws IOException { | 
|  | ProcessResult result = runOnJavaRaw(app, mainClass, args); | 
|  | ToolHelper.failOnProcessFailure(result); | 
|  | ToolHelper.failOnVerificationErrors(result); | 
|  | return result.stdout; | 
|  | } | 
|  |  | 
|  | protected ProcessResult runOnJavaRawNoVerify(String main, byte[]... classes) throws IOException { | 
|  | return runOnJavaRawNoVerify(main, Arrays.asList(classes), Collections.emptyList()); | 
|  | } | 
|  |  | 
|  | protected ProcessResult runOnJavaRawNoVerify(String main, List<byte[]> classes, List<String> args) | 
|  | throws IOException { | 
|  | return ToolHelper.runJavaNoVerify(Collections.singletonList(writeToJar(classes)), main, args); | 
|  | } | 
|  |  | 
|  | protected ProcessResult runOnJavaRaw(String main, byte[]... classes) throws IOException { | 
|  | return runOnJavaRaw(main, Arrays.asList(classes), Collections.emptyList()); | 
|  | } | 
|  |  | 
|  | protected ProcessResult runOnJavaRaw(String main, List<byte[]> classes, List<String> args) | 
|  | throws IOException { | 
|  | List<String> mainAndArgs = new ArrayList<>(); | 
|  | mainAndArgs.add(main); | 
|  | mainAndArgs.addAll(args); | 
|  | return ToolHelper.runJava( | 
|  | Collections.singletonList(writeToJar(classes)), | 
|  | mainAndArgs.toArray(StringUtils.EMPTY_ARRAY)); | 
|  | } | 
|  |  | 
|  | protected ProcessResult runOnJavaRaw(AndroidApp app, String mainClass, List<String> args) | 
|  | throws IOException { | 
|  | Path out = File.createTempFile("junit", ".zip", temp.getRoot()).toPath(); | 
|  | app.writeToZip(out, OutputMode.ClassFile); | 
|  | List<String> mainAndArgs = new ArrayList<>(); | 
|  | mainAndArgs.add(mainClass); | 
|  | mainAndArgs.addAll(args); | 
|  | return ToolHelper.runJava(out, mainAndArgs.toArray(StringUtils.EMPTY_ARRAY)); | 
|  | } | 
|  |  | 
|  | protected ProcessResult runOnJavaRawNoVerify(AndroidApp app, String mainClass, List<String> args) | 
|  | throws IOException { | 
|  | Path out = File.createTempFile("junit", ".zip", temp.getRoot()).toPath(); | 
|  | app.writeToZip(out, OutputMode.ClassFile); | 
|  | return ToolHelper.runJavaNoVerify(out, mainClass, args.toArray(StringUtils.EMPTY_ARRAY)); | 
|  | } | 
|  |  | 
|  | /** Run application on Art or Java with the specified main class. */ | 
|  | protected String runOnVM(AndroidApp app, Class mainClass, Backend backend) throws IOException { | 
|  | return runOnVM(app, mainClass.getName(), backend); | 
|  | } | 
|  |  | 
|  | /** Run application on Art or Java with the specified main class. */ | 
|  | protected String runOnVM(AndroidApp app, String mainClass, Backend backend) throws IOException { | 
|  | switch (backend) { | 
|  | case CF: | 
|  | return runOnJava(app, mainClass); | 
|  | case DEX: | 
|  | return runOnArt(app, mainClass); | 
|  | default: | 
|  | throw new Unreachable("Unexpected backend: " + backend); | 
|  | } | 
|  | } | 
|  |  | 
|  | protected ProcessResult runOnVMRaw(AndroidApp app, Class<?> mainClass, Backend backend) | 
|  | throws IOException { | 
|  | return runOnVMRaw(app, mainClass.getTypeName(), backend); | 
|  | } | 
|  |  | 
|  | protected ProcessResult runOnVMRaw(AndroidApp app, String mainClass, Backend backend) | 
|  | throws IOException { | 
|  | switch (backend) { | 
|  | case CF: | 
|  | return runOnJavaRaw(app, mainClass, ImmutableList.of()); | 
|  | case DEX: | 
|  | return runOnArtRaw(app, mainClass); | 
|  | default: | 
|  | throw new Unreachable("Unexpected backend: " + backend); | 
|  | } | 
|  | } | 
|  |  | 
|  | public static String extractClassName(byte[] ccc) { | 
|  | return DescriptorUtils.descriptorToJavaType(extractClassDescriptor(ccc)); | 
|  | } | 
|  |  | 
|  | public static String extractClassDescriptor(byte[] ccc) { | 
|  | return "L" + extractClassInternalType(ccc) + ";"; | 
|  | } | 
|  |  | 
|  | private static String extractClassInternalType(byte[] ccc) { | 
|  | class ClassNameExtractor extends ClassVisitor { | 
|  | private String className; | 
|  |  | 
|  | private ClassNameExtractor() { | 
|  | super(ASM_VERSION); | 
|  | } | 
|  |  | 
|  | @Override | 
|  | public void visit( | 
|  | int version, | 
|  | int access, | 
|  | String name, | 
|  | String signature, | 
|  | String superName, | 
|  | String[] interfaces) { | 
|  | className = name; | 
|  | } | 
|  |  | 
|  | String getClassInternalType() { | 
|  | return className; | 
|  | } | 
|  | } | 
|  |  | 
|  | ClassReader reader = new ClassReader(ccc); | 
|  | ClassNameExtractor extractor = new ClassNameExtractor(); | 
|  | reader.accept( | 
|  | extractor, ClassReader.SKIP_CODE | ClassReader.SKIP_DEBUG | ClassReader.SKIP_FRAMES); | 
|  | return extractor.getClassInternalType(); | 
|  | } | 
|  |  | 
|  | protected static void writeClassesToJar(Path output, Collection<Class<?>> classes) | 
|  | throws IOException { | 
|  | ClassFileConsumer consumer = new ArchiveConsumer(output); | 
|  | for (Class<?> clazz : classes) { | 
|  | consumer.accept( | 
|  | ByteDataView.of(Files.readAllBytes(ToolHelper.getClassFileForTestClass(clazz))), | 
|  | DescriptorUtils.javaTypeToDescriptor(clazz.getTypeName()), | 
|  | null); | 
|  | } | 
|  | consumer.finished(null); | 
|  | } | 
|  |  | 
|  | protected static void writeClassFileDataToJar(Path output, Collection<byte[]> classes) | 
|  | throws IOException { | 
|  | ClassFileConsumer consumer = new ArchiveConsumer(output); | 
|  | for (byte[] clazz : classes) { | 
|  | consumer.accept(ByteDataView.of(clazz), extractClassDescriptor(clazz), null); | 
|  | } | 
|  | consumer.finished(null); | 
|  | } | 
|  |  | 
|  | protected static void writeClassFilesToJar(Path output, Collection<Path> classes) | 
|  | throws IOException { | 
|  | List<byte[]> bytes = new LinkedList<>(); | 
|  | for (Path classPath : classes) { | 
|  | byte[] classBytes = Files.readAllBytes(Paths.get(classPath.toString())); | 
|  | bytes.add(classBytes); | 
|  | } | 
|  | writeClassFileDataToJar(output, bytes); | 
|  | } | 
|  |  | 
|  | protected Path writeToJar(List<byte[]> classes) throws IOException { | 
|  | Path result = File.createTempFile("junit", ".jar", temp.getRoot()).toPath(); | 
|  | writeClassFileDataToJar(result, classes); | 
|  | return result; | 
|  | } | 
|  |  | 
|  | protected Path writeToJar(JasminBuilder jasminBuilder) throws Exception { | 
|  | return writeToJar(jasminBuilder.buildClasses()); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Disassemble the content of an application. Only works for an application with only dex code. | 
|  | */ | 
|  | protected void disassemble(AndroidApp app) throws Exception { | 
|  | InternalOptions options = new InternalOptions(); | 
|  | System.out.println(SmaliWriter.smali(app, options)); | 
|  | } | 
|  |  | 
|  | protected MethodSubject getMethodSubject( | 
|  | CodeInspector inspector, | 
|  | String className, | 
|  | String returnType, | 
|  | String methodName, | 
|  | List<String> parameters) { | 
|  | ClassSubject clazz = inspector.clazz(className); | 
|  | assertTrue(clazz.isPresent()); | 
|  | MethodSubject method = clazz.method(returnType, methodName, parameters); | 
|  | assertTrue(method.isPresent()); | 
|  | return method; | 
|  | } | 
|  |  | 
|  | protected MethodSubject getMethodSubject( | 
|  | AndroidApp application, | 
|  | String className, | 
|  | String returnType, | 
|  | String methodName, | 
|  | List<String> parameters) { | 
|  | try { | 
|  | CodeInspector inspector = new CodeInspector(application); | 
|  | return getMethodSubject(inspector, className, returnType, methodName, parameters); | 
|  | } catch (Exception e) { | 
|  | return null; | 
|  | } | 
|  | } | 
|  |  | 
|  | protected DexEncodedMethod getMethod( | 
|  | AndroidApp application, | 
|  | String className, | 
|  | String returnType, | 
|  | String methodName, | 
|  | List<String> parameters) { | 
|  | return getMethodSubject(application, className, returnType, methodName, parameters).getMethod(); | 
|  | } | 
|  |  | 
|  | protected DexEncodedMethod getMethod( | 
|  | CodeInspector inspector, | 
|  | String className, | 
|  | String returnType, | 
|  | String methodName, | 
|  | List<String> parameters) { | 
|  | return getMethodSubject(inspector, className, returnType, methodName, parameters).getMethod(); | 
|  | } | 
|  |  | 
|  | protected static void checkInstructions( | 
|  | DexCode code, List<Class<? extends Instruction>> instructions) { | 
|  | assertEquals(instructions.size(), code.instructions.length); | 
|  | for (int i = 0; i < instructions.size(); ++i) { | 
|  | assertEquals("Unexpected instruction at index " + i, | 
|  | instructions.get(i), code.instructions[i].getClass()); | 
|  | } | 
|  | } | 
|  |  | 
|  | protected Stream<Instruction> filterInstructionKind( | 
|  | DexCode dexCode, Class<? extends Instruction> kind) { | 
|  | return Arrays.stream(dexCode.instructions) | 
|  | .filter(kind::isInstance) | 
|  | .map(kind::cast); | 
|  | } | 
|  |  | 
|  | protected long countCall(MethodSubject method, String className, String methodName) { | 
|  | return method.streamInstructions().filter(instructionSubject -> { | 
|  | if (instructionSubject.isInvoke()) { | 
|  | DexMethod invokedMethod = instructionSubject.getMethod(); | 
|  | return invokedMethod.holder.toString().contains(className) | 
|  | && invokedMethod.name.toString().contains(methodName); | 
|  | } | 
|  | return false; | 
|  | }).count(); | 
|  | } | 
|  |  | 
|  | protected long countCall(MethodSubject method, String methodName) { | 
|  | return method.streamInstructions().filter(instructionSubject -> { | 
|  | if (instructionSubject.isInvoke()) { | 
|  | DexMethod invokedMethod = instructionSubject.getMethod(); | 
|  | return invokedMethod.name.toString().contains(methodName); | 
|  | } | 
|  | return false; | 
|  | }).count(); | 
|  | } | 
|  |  | 
|  | public enum MinifyMode { | 
|  | NONE, | 
|  | JAVA, | 
|  | AGGRESSIVE; | 
|  |  | 
|  | public boolean isMinify() { | 
|  | return this != NONE; | 
|  | } | 
|  |  | 
|  | public boolean isAggressive() { | 
|  | return this == AGGRESSIVE; | 
|  | } | 
|  | } | 
|  |  | 
|  | public static ProgramConsumer emptyConsumer(Backend backend) { | 
|  | if (backend == Backend.DEX) { | 
|  | return DexIndexedConsumer.emptyConsumer(); | 
|  | } else { | 
|  | assert backend == Backend.CF; | 
|  | return ClassFileConsumer.emptyConsumer(); | 
|  | } | 
|  | } | 
|  |  | 
|  | public static OutputMode outputMode(Backend backend) { | 
|  | if (backend == Backend.DEX) { | 
|  | return OutputMode.DexIndexed; | 
|  | } else { | 
|  | assert backend == Backend.CF; | 
|  | return OutputMode.ClassFile; | 
|  | } | 
|  | } | 
|  |  | 
|  | public static Path runtimeJar(TestParameters parameters) { | 
|  | if (parameters.isDexRuntime()) { | 
|  | return ToolHelper.getAndroidJar(parameters.getRuntime().asDex().getMinApiLevel()); | 
|  | } else { | 
|  | assert parameters.isCfRuntime(); | 
|  | return ToolHelper.getJava8RuntimeJar(); | 
|  | } | 
|  | } | 
|  |  | 
|  | public static Path runtimeJar(Backend backend) { | 
|  | if (backend == Backend.DEX) { | 
|  | return ToolHelper.getDefaultAndroidJar(); | 
|  | } else { | 
|  | assert backend == Backend.CF; | 
|  | return ToolHelper.getJava8RuntimeJar(); | 
|  | } | 
|  | } | 
|  |  | 
|  | public static class JarBuilder { | 
|  | final Path jar; | 
|  | final ZipOutputStream stream; | 
|  | final Set<Class<?>> servicesAdded = Sets.newIdentityHashSet(); | 
|  |  | 
|  | private JarBuilder(TemporaryFolder temp) throws IOException { | 
|  | jar = temp.newFolder().toPath().resolve("a.jar"); | 
|  | stream = new ZipOutputStream(Files.newOutputStream(jar)); | 
|  | } | 
|  |  | 
|  | public static JarBuilder builder(TemporaryFolder temp) throws IOException { | 
|  | return new JarBuilder(temp); | 
|  | } | 
|  |  | 
|  | public JarBuilder addClass(Class<?> clazz) throws IOException { | 
|  | stream.putNextEntry(new ZipEntry(DescriptorUtils.getPathFromJavaType(clazz))); | 
|  | stream.write(Files.readAllBytes(ToolHelper.getClassFileForTestClass(clazz))); | 
|  | stream.closeEntry(); | 
|  | return this; | 
|  | } | 
|  |  | 
|  | public JarBuilder addResource(String path, String content) throws IOException { | 
|  | stream.putNextEntry(new ZipEntry(path)); | 
|  | stream.write(content.getBytes(StandardCharsets.UTF_8)); | 
|  | stream.closeEntry(); | 
|  | return this; | 
|  | } | 
|  |  | 
|  | public JarBuilder addServiceWithImplementations( | 
|  | Class<?> service, List<Class<?>> implementations) throws IOException { | 
|  | boolean added = servicesAdded.add(service); | 
|  | assert added : "Currently each service can only be added once"; | 
|  | addResource( | 
|  | "META-INF/services/" + Greeter.class.getTypeName(), | 
|  | StringUtils.lines( | 
|  | implementations.stream().map(Class::getTypeName).collect(Collectors.toList()))); | 
|  | return this; | 
|  | } | 
|  |  | 
|  | public Path build() throws IOException { | 
|  | stream.close(); | 
|  | return jar; | 
|  | } | 
|  | } | 
|  |  | 
|  | public JarBuilder jarBuilder() throws IOException { | 
|  | return JarBuilder.builder(temp); | 
|  | } | 
|  |  | 
|  | public List<Path> buildOnDexRuntime(TestParameters parameters, List<Path> paths) | 
|  | throws CompilationFailedException, IOException { | 
|  | if (parameters.isCfRuntime()) { | 
|  | return paths; | 
|  | } | 
|  | return Collections.singletonList( | 
|  | testForD8() | 
|  | .addProgramFiles(paths) | 
|  | .setMinApi(parameters.getApiLevel()) | 
|  | .compile() | 
|  | .writeToZip()); | 
|  | } | 
|  |  | 
|  | public List<Path> buildOnDexRuntime(TestParameters parameters, Path... paths) | 
|  | throws IOException, CompilationFailedException { | 
|  | return buildOnDexRuntime(parameters, Arrays.asList(paths)); | 
|  | } | 
|  |  | 
|  | public static String binaryName(Class<?> clazz) { | 
|  | return DescriptorUtils.getBinaryNameFromJavaType(typeName(clazz)); | 
|  | } | 
|  |  | 
|  | public static String descriptor(Class<?> clazz) { | 
|  | return DescriptorUtils.javaTypeToDescriptor(typeName(clazz)); | 
|  | } | 
|  |  | 
|  | public static String typeName(Class<?> clazz) { | 
|  | return clazz.getTypeName(); | 
|  | } | 
|  | } |