| // 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.desugar.desugaredlibrary; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import com.android.tools.r8.CompilationFailedException; |
| import com.android.tools.r8.D8TestCompileResult; |
| import com.android.tools.r8.Diagnostic; |
| import com.android.tools.r8.TestDiagnosticMessages; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.ToolHelper; |
| import com.android.tools.r8.desugar.desugaredlibrary.jdktests.Jdk11DesugaredLibraryTestBase; |
| import com.android.tools.r8.utils.AndroidApiLevel; |
| import java.nio.file.Path; |
| import java.util.ArrayList; |
| import java.util.List; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class MergingWithDesugaredLibraryTest extends Jdk11DesugaredLibraryTestBase { |
| |
| private static final String JAVA_RESULT = "java.util.stream.ReferencePipeline$Head"; |
| private static final String J$_RESULT = "j$.util.stream.ReferencePipeline$Head"; |
| |
| private final TestParameters parameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withDexRuntimes().withAllApiLevels().build(); |
| } |
| |
| public MergingWithDesugaredLibraryTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testMergeDesugaredAndNonDesugared() throws Exception { |
| D8TestCompileResult compileResult; |
| try { |
| compileResult = |
| testForD8() |
| .addProgramFiles(buildPart1DesugaredLibrary(), buildPart2NoDesugaredLibrary()) |
| .addLibraryFiles(ToolHelper.getAndroidJar(AndroidApiLevel.P)) |
| .setMinApi(parameters.getApiLevel()) |
| .enableCoreLibraryDesugaring(parameters.getApiLevel()) |
| .compileWithExpectedDiagnostics(this::assertError); |
| assertFalse(expectError()); |
| } catch (CompilationFailedException e) { |
| assertTrue(expectError()); |
| return; |
| } |
| assert !expectError(); |
| assert compileResult != null; |
| compileResult.addDesugaredCoreLibraryRunClassPath( |
| this::buildDesugaredLibrary, parameters.getApiLevel()); |
| compileResult |
| .run(parameters.getRuntime(), Part1.class) |
| .assertSuccessWithOutputLines(JAVA_RESULT); |
| compileResult |
| .run(parameters.getRuntime(), Part2.class) |
| .assertSuccessWithOutputLines(JAVA_RESULT); |
| } |
| |
| private void assertError(TestDiagnosticMessages m) { |
| List<Diagnostic> errors = m.getErrors(); |
| if (expectError()) { |
| assertEquals(1, errors.size()); |
| assertTrue( |
| errors.stream() |
| .anyMatch( |
| w -> |
| w.getDiagnosticMessage() |
| .contains( |
| "The compilation is merging inputs with different" |
| + " desugared library desugaring"))); |
| } else { |
| assertEquals(0, errors.size()); |
| } |
| } |
| |
| private boolean expectError() { |
| return parameters.getApiLevel().getLevel() <= AndroidApiLevel.N.getLevel(); |
| } |
| |
| @Test |
| public void testMergeDesugaredAndClassFile() throws Exception { |
| D8TestCompileResult compileResult = |
| testForD8() |
| .addProgramFiles(buildPart1DesugaredLibrary()) |
| .addProgramClasses(Part2.class) |
| .addLibraryFiles(ToolHelper.getAndroidJar(AndroidApiLevel.P)) |
| .setMinApi(parameters.getApiLevel()) |
| .enableCoreLibraryDesugaring(parameters.getApiLevel()) |
| .compile() |
| .inspectDiagnosticMessages(this::assertWarningPresent) |
| .addDesugaredCoreLibraryRunClassPath( |
| this::buildDesugaredLibrary, parameters.getApiLevel()); |
| if (parameters.getApiLevel().getLevel() < AndroidApiLevel.N.getLevel()) { |
| compileResult |
| .run(parameters.getRuntime(), Part1.class) |
| .assertSuccessWithOutputLines(J$_RESULT); |
| compileResult |
| .run(parameters.getRuntime(), Part2.class) |
| .assertSuccessWithOutputLines(J$_RESULT); |
| } else { |
| compileResult |
| .run(parameters.getRuntime(), Part1.class) |
| .assertSuccessWithOutputLines(JAVA_RESULT); |
| compileResult |
| .run(parameters.getRuntime(), Part2.class) |
| .assertSuccessWithOutputLines(JAVA_RESULT); |
| } |
| } |
| |
| private void assertWarningPresent(TestDiagnosticMessages testDiagnosticMessages) { |
| if (parameters.getApiLevel().getLevel() > AndroidApiLevel.N.getLevel()) { |
| return; |
| } |
| assertTrue( |
| testDiagnosticMessages.getWarnings().stream() |
| .anyMatch( |
| warn -> warn.getDiagnosticMessage().startsWith("The compilation is slowed down"))); |
| } |
| |
| private Path buildPart1DesugaredLibrary() throws Exception { |
| return testForD8() |
| .addProgramClasses(Part1.class) |
| .setMinApi(parameters.getApiLevel()) |
| .enableCoreLibraryDesugaring(parameters.getApiLevel()) |
| .compile() |
| .writeToZip(); |
| } |
| |
| private Path buildPart2NoDesugaredLibrary() throws Exception { |
| return testForD8() |
| .addProgramClasses(Part2.class) |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .writeToZip(); |
| } |
| |
| @SuppressWarnings("RedundantOperationOnEmptyContainer") |
| static class Part1 { |
| public static void main(String[] args) { |
| System.out.println(new ArrayList<>().stream().getClass().getName()); |
| } |
| } |
| |
| @SuppressWarnings("RedundantOperationOnEmptyContainer") |
| static class Part2 { |
| public static void main(String[] args) { |
| System.out.println(new ArrayList<>().stream().getClass().getName()); |
| } |
| } |
| } |