| // Copyright (c) 2022, 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.desugaredlibrary.conversiontests; |
| |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.desugar.desugaredlibrary.DesugaredLibraryTestBase; |
| import com.android.tools.r8.utils.AndroidApiLevel; |
| import com.android.tools.r8.utils.BooleanUtils; |
| import com.android.tools.r8.utils.StringUtils; |
| import java.nio.file.Path; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Spliterator; |
| import org.junit.BeforeClass; |
| 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 SpliteratorConversionTest extends DesugaredLibraryTestBase { |
| |
| private final TestParameters parameters; |
| private final boolean shrinkDesugaredLibrary; |
| |
| private static final AndroidApiLevel MIN_SUPPORTED = AndroidApiLevel.N; |
| private static final String EXPECTED_RESULT = StringUtils.lines("2", "true", "2", "true"); |
| |
| private static Path CUSTOM_LIB; |
| |
| @Parameters(name = "{0}, shrinkDesugaredLibrary: {1}") |
| public static List<Object[]> data() { |
| return buildParameters( |
| getConversionParametersUpToExcluding(MIN_SUPPORTED), BooleanUtils.values()); |
| } |
| |
| public SpliteratorConversionTest(TestParameters parameters, boolean shrinkDesugaredLibrary) { |
| this.shrinkDesugaredLibrary = shrinkDesugaredLibrary; |
| this.parameters = parameters; |
| } |
| |
| @BeforeClass |
| public static void compileCustomLib() throws Exception { |
| CUSTOM_LIB = |
| testForD8(getStaticTemp()) |
| .addProgramClasses(CustomLibClass.class) |
| .setMinApi(MIN_SUPPORTED) |
| .compile() |
| .writeToZip(); |
| } |
| |
| @Test |
| public void testD8() throws Exception { |
| KeepRuleConsumer keepRuleConsumer = createKeepRuleConsumer(parameters); |
| testForD8() |
| .addLibraryFiles(getLibraryFile()) |
| .setMinApi(parameters.getApiLevel()) |
| .addProgramClasses(Executor.class) |
| .addLibraryClasses(CustomLibClass.class) |
| .enableCoreLibraryDesugaring(parameters.getApiLevel(), keepRuleConsumer) |
| .compile() |
| .addDesugaredCoreLibraryRunClassPath( |
| this::buildDesugaredLibrary, |
| parameters.getApiLevel(), |
| keepRuleConsumer.get(), |
| shrinkDesugaredLibrary) |
| .addRunClasspathFiles(CUSTOM_LIB) |
| .run(parameters.getRuntime(), Executor.class) |
| .assertSuccessWithOutput(EXPECTED_RESULT); |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| KeepRuleConsumer keepRuleConsumer = createKeepRuleConsumer(parameters); |
| testForR8(parameters.getBackend()) |
| .addLibraryFiles(getLibraryFile()) |
| .setMinApi(parameters.getApiLevel()) |
| .addKeepMainRule(Executor.class) |
| .addProgramClasses(Executor.class) |
| .addLibraryClasses(CustomLibClass.class) |
| .enableCoreLibraryDesugaring(parameters.getApiLevel(), keepRuleConsumer) |
| .compile() |
| .addDesugaredCoreLibraryRunClassPath( |
| this::buildDesugaredLibrary, |
| parameters.getApiLevel(), |
| keepRuleConsumer.get(), |
| shrinkDesugaredLibrary) |
| .addRunClasspathFiles(CUSTOM_LIB) |
| .run(parameters.getRuntime(), Executor.class) |
| .assertSuccessWithOutput(EXPECTED_RESULT); |
| } |
| |
| static class Executor { |
| |
| public static void main(String[] args) { |
| ArrayList<String> strings = new ArrayList<>(); |
| strings.add("A"); |
| strings.add("B"); |
| CustomLibClass.printSpliterator(strings.spliterator()); |
| |
| Spliterator<String> split = CustomLibClass.get(); |
| System.out.println(split.getExactSizeIfKnown()); |
| System.out.println(split.hasCharacteristics(Spliterator.SIZED)); |
| } |
| } |
| |
| // This class will be put at compilation time as library and on the runtime class path. |
| // This class is convenient for easy testing. Each method plays the role of methods in the |
| // platform APIs for which argument/return values need conversion. |
| static class CustomLibClass { |
| |
| public static void printSpliterator(Spliterator<String> split) { |
| System.out.println(split.getExactSizeIfKnown()); |
| System.out.println(split.hasCharacteristics(Spliterator.SIZED)); |
| } |
| |
| public static Spliterator<String> get() { |
| ArrayList<String> strings = new ArrayList<>(); |
| strings.add("A"); |
| strings.add("B"); |
| return strings.spliterator(); |
| } |
| } |
| } |