| // Copyright (c) 2019, 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 com.android.tools.r8.desugar.desugaredlibrary.test.CompilationSpecification.D8_L8DEBUG; |
| import static com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification.getJdk8Jdk11; |
| |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.desugar.desugaredlibrary.test.CompilationSpecification; |
| import com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification; |
| import com.google.common.collect.ImmutableList; |
| import java.util.LinkedHashSet; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.Spliterator; |
| import java.util.Spliterators; |
| import java.util.function.Predicate; |
| 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 LinkedHashSetTest extends DesugaredLibraryTestBase { |
| |
| private final TestParameters parameters; |
| private final LibraryDesugaringSpecification libraryDesugaringSpecification; |
| private final CompilationSpecification compilationSpecification; |
| |
| @Parameters(name = "{0}, spec: {1}, {2}") |
| public static List<Object[]> data() { |
| return buildParameters( |
| getTestParameters().withDexRuntimes().withAllApiLevels().build(), |
| getJdk8Jdk11(), |
| ImmutableList.of(D8_L8DEBUG)); |
| } |
| |
| public LinkedHashSetTest( |
| TestParameters parameters, |
| LibraryDesugaringSpecification libraryDesugaringSpecification, |
| CompilationSpecification compilationSpecification) { |
| this.parameters = parameters; |
| this.libraryDesugaringSpecification = libraryDesugaringSpecification; |
| this.compilationSpecification = compilationSpecification; |
| } |
| |
| @Test |
| public void testLinkedHashSet() throws Throwable { |
| String stdOut = |
| testForDesugaredLibrary( |
| parameters, libraryDesugaringSpecification, compilationSpecification) |
| .addInnerClasses(getClass()) |
| .run(parameters.getRuntime(), Executor.class) |
| .assertSuccess() |
| .getStdOut(); |
| assertLines2By2Correct(stdOut); |
| } |
| |
| @SuppressWarnings("WeakerAccess") |
| static class Executor { |
| |
| public static void main(String[] args) { |
| // Spliterator of Set is only distinct. |
| // Spliterator of LinkedHashSet is distinct and ordered. |
| // Spliterator of CustomLinkedHashSetOverride is distinct, ordered and immutable. |
| // If an incorrect method is found, characteristics are incorrect. |
| rawTypes(); |
| linkedHashSetType(); |
| setType(); |
| } |
| |
| @SuppressWarnings("RedundantOperationOnEmptyContainer") |
| public static void rawTypes() { |
| Spliterator<String> spliterator; |
| |
| spliterator = new LinkedHashSet<String>().spliterator(); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.DISTINCT)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.ORDERED)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.IMMUTABLE)); |
| System.out.println("false"); |
| |
| spliterator = new CustomLinkedHashSetOverride<String>().spliterator(); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.DISTINCT)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.ORDERED)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.IMMUTABLE)); |
| System.out.println("true"); |
| |
| spliterator = new CustomLinkedHashSetNoOverride<String>().spliterator(); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.DISTINCT)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.ORDERED)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.IMMUTABLE)); |
| System.out.println("false"); |
| |
| spliterator = new CustomLinkedHashSetOverride<String>().superSpliterator(); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.DISTINCT)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.ORDERED)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.IMMUTABLE)); |
| System.out.println("false"); |
| |
| spliterator = new SubclassOverride<String>().superSpliterator(); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.DISTINCT)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.ORDERED)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.IMMUTABLE)); |
| System.out.println("true"); |
| |
| spliterator = new SubclassNoOverride<String>().superSpliterator(); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.DISTINCT)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.ORDERED)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.IMMUTABLE)); |
| System.out.println("false"); |
| } |
| |
| @SuppressWarnings("RedundantOperationOnEmptyContainer") |
| public static void linkedHashSetType() { |
| System.out.println("-"); |
| System.out.println("-"); |
| Spliterator<String> spliterator; |
| |
| spliterator = |
| ((LinkedHashSet<String>) new CustomLinkedHashSetOverride<String>()).spliterator(); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.DISTINCT)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.ORDERED)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.IMMUTABLE)); |
| System.out.println("true"); |
| |
| spliterator = |
| ((LinkedHashSet<String>) new CustomLinkedHashSetNoOverride<String>()).spliterator(); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.DISTINCT)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.ORDERED)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.IMMUTABLE)); |
| System.out.println("false"); |
| } |
| |
| @SuppressWarnings("RedundantOperationOnEmptyContainer") |
| public static void setType() { |
| System.out.println("-"); |
| System.out.println("-"); |
| Spliterator<String> spliterator; |
| |
| spliterator = ((Set<String>) new LinkedHashSet<String>()).spliterator(); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.DISTINCT)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.ORDERED)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.IMMUTABLE)); |
| System.out.println("false"); |
| |
| spliterator = ((Set<String>) new CustomLinkedHashSetOverride<String>()).spliterator(); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.DISTINCT)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.ORDERED)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.IMMUTABLE)); |
| System.out.println("true"); |
| |
| spliterator = ((Set<String>) new CustomLinkedHashSetNoOverride<String>()).spliterator(); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.DISTINCT)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.ORDERED)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.IMMUTABLE)); |
| System.out.println("false"); |
| |
| spliterator = ((Set<String>) new CustomLinkedHashSetForceForwarding<String>()).spliterator(); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.DISTINCT)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.ORDERED)); |
| System.out.println("true"); |
| System.out.println(spliterator.hasCharacteristics(Spliterator.IMMUTABLE)); |
| System.out.println("false"); |
| } |
| } |
| |
| static class CustomLinkedHashSetOverride<E> extends LinkedHashSet<E> { |
| |
| @Override |
| public Spliterator<E> spliterator() { |
| return Spliterators.spliterator( |
| this, Spliterator.DISTINCT | Spliterator.ORDERED | Spliterator.IMMUTABLE); |
| } |
| |
| public Spliterator<E> superSpliterator() { |
| return super.spliterator(); |
| } |
| } |
| |
| static class SubclassOverride<E> extends CustomLinkedHashSetOverride<E> { |
| |
| @Override |
| public Spliterator<E> superSpliterator() { |
| return super.spliterator(); |
| } |
| } |
| |
| @SuppressWarnings("WeakerAccess") |
| static class CustomLinkedHashSetNoOverride<E> extends LinkedHashSet<E> {} |
| |
| static class SubclassNoOverride<E> extends CustomLinkedHashSetNoOverride<E> { |
| |
| public Spliterator<E> superSpliterator() { |
| return super.spliterator(); |
| } |
| } |
| |
| // The over method force the forwarding methods to be installed. |
| static class CustomLinkedHashSetForceForwarding<E> extends LinkedHashSet<E> { |
| |
| @Override |
| public boolean removeIf(Predicate<? super E> filter) { |
| return super.removeIf(filter); |
| } |
| } |
| } |