| /* |
| * Copyright (C) 2007 The Guava Authors |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.google.common.collect; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import com.google.common.collect.testing.SetTestSuiteBuilder; |
| import com.google.common.collect.testing.TestStringSetGenerator; |
| import com.google.common.collect.testing.features.CollectionFeature; |
| import com.google.common.collect.testing.features.CollectionSize; |
| import java.io.Serializable; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Set; |
| import junit.framework.Test; |
| import junit.framework.TestCase; |
| import org.checkerframework.checker.nullness.compatqual.NullableDecl; |
| |
| /** |
| * Tests for {@code Synchronized#set}. |
| * |
| * @author Mike Bostock |
| */ |
| public class SynchronizedSetTest extends TestCase { |
| |
| public static final Object MUTEX = new Integer(1); // something Serializable |
| |
| public static Test suite() { |
| return SetTestSuiteBuilder.using( |
| new TestStringSetGenerator() { |
| @Override |
| protected Set<String> create(String[] elements) { |
| TestSet<String> inner = new TestSet<>(new HashSet<String>(), MUTEX); |
| Set<String> outer = Synchronized.set(inner, inner.mutex); |
| Collections.addAll(outer, elements); |
| return outer; |
| } |
| }) |
| .named("Synchronized.set") |
| .withFeatures( |
| CollectionFeature.GENERAL_PURPOSE, |
| CollectionFeature.ALLOWS_NULL_VALUES, |
| CollectionSize.ANY, |
| CollectionFeature.SERIALIZABLE) |
| .createTestSuite(); |
| } |
| |
| static class TestSet<E> extends ForwardingSet<E> implements Serializable { |
| final Set<E> delegate; |
| public final Object mutex; |
| |
| public TestSet(Set<E> delegate, Object mutex) { |
| checkNotNull(mutex); |
| this.delegate = delegate; |
| this.mutex = mutex; |
| } |
| |
| @Override |
| protected Set<E> delegate() { |
| return delegate; |
| } |
| |
| @Override |
| public String toString() { |
| assertTrue(Thread.holdsLock(mutex)); |
| return super.toString(); |
| } |
| |
| @Override |
| public boolean equals(@NullableDecl Object o) { |
| assertTrue(Thread.holdsLock(mutex)); |
| return super.equals(o); |
| } |
| |
| @Override |
| public int hashCode() { |
| assertTrue(Thread.holdsLock(mutex)); |
| return super.hashCode(); |
| } |
| |
| @Override |
| public boolean add(@NullableDecl E o) { |
| assertTrue(Thread.holdsLock(mutex)); |
| return super.add(o); |
| } |
| |
| @Override |
| public boolean addAll(Collection<? extends E> c) { |
| assertTrue(Thread.holdsLock(mutex)); |
| return super.addAll(c); |
| } |
| |
| @Override |
| public void clear() { |
| assertTrue(Thread.holdsLock(mutex)); |
| super.clear(); |
| } |
| |
| @Override |
| public boolean contains(@NullableDecl Object o) { |
| assertTrue(Thread.holdsLock(mutex)); |
| return super.contains(o); |
| } |
| |
| @Override |
| public boolean containsAll(Collection<?> c) { |
| assertTrue(Thread.holdsLock(mutex)); |
| return super.containsAll(c); |
| } |
| |
| @Override |
| public boolean isEmpty() { |
| assertTrue(Thread.holdsLock(mutex)); |
| return super.isEmpty(); |
| } |
| |
| /* Don't test iterator(); it may or may not hold the mutex. */ |
| |
| @Override |
| public boolean remove(@NullableDecl Object o) { |
| assertTrue(Thread.holdsLock(mutex)); |
| return super.remove(o); |
| } |
| |
| @Override |
| public boolean removeAll(Collection<?> c) { |
| assertTrue(Thread.holdsLock(mutex)); |
| return super.removeAll(c); |
| } |
| |
| @Override |
| public boolean retainAll(Collection<?> c) { |
| assertTrue(Thread.holdsLock(mutex)); |
| return super.retainAll(c); |
| } |
| |
| @Override |
| public int size() { |
| assertTrue(Thread.holdsLock(mutex)); |
| return super.size(); |
| } |
| |
| @Override |
| public Object[] toArray() { |
| assertTrue(Thread.holdsLock(mutex)); |
| return super.toArray(); |
| } |
| |
| @Override |
| public <T> T[] toArray(T[] a) { |
| assertTrue(Thread.holdsLock(mutex)); |
| return super.toArray(a); |
| } |
| |
| private static final long serialVersionUID = 0; |
| } |
| } |