| /* |
| * Copyright (C) 2010 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 com.google.common.collect.Synchronized.SynchronizedNavigableSet; |
| import com.google.common.collect.Synchronized.SynchronizedSortedSet; |
| import com.google.common.collect.testing.NavigableSetTestSuiteBuilder; |
| import com.google.common.collect.testing.SafeTreeSet; |
| import com.google.common.collect.testing.TestStringSortedSetGenerator; |
| import com.google.common.collect.testing.features.CollectionFeature; |
| import com.google.common.collect.testing.features.CollectionSize; |
| |
| import junit.framework.TestCase; |
| import junit.framework.TestSuite; |
| |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.NavigableSet; |
| import java.util.SortedSet; |
| import java.util.TreeSet; |
| |
| /** |
| * Tests for {@link Sets#synchronizedNavigableSet(NavigableSet)}. |
| * |
| * @author Louis Wasserman |
| */ |
| public class SynchronizedNavigableSetTest extends TestCase { |
| private static final Object MUTEX = new Integer(1); // something Serializable |
| |
| @SuppressWarnings("unchecked") |
| protected <E> NavigableSet<E> create() { |
| TestSet<E> inner = new TestSet<E>( |
| new TreeSet<E>((Comparator<E>) Ordering.natural().nullsFirst()), MUTEX); |
| NavigableSet<E> outer = |
| Synchronized.navigableSet(inner, MUTEX); |
| return outer; |
| } |
| |
| static class TestSet<E> extends SynchronizedSetTest.TestSet<E> |
| implements NavigableSet<E> { |
| |
| TestSet(NavigableSet<E> delegate, Object mutex) { |
| super(delegate, mutex); |
| } |
| |
| @Override protected NavigableSet<E> delegate() { |
| return (NavigableSet<E>) super.delegate(); |
| } |
| |
| @Override public E ceiling(E e) { |
| assertTrue(Thread.holdsLock(mutex)); |
| return delegate().ceiling(e); |
| } |
| |
| @Override public Iterator<E> descendingIterator() { |
| return delegate().descendingIterator(); |
| } |
| |
| @Override public NavigableSet<E> descendingSet() { |
| assertTrue(Thread.holdsLock(mutex)); |
| return delegate().descendingSet(); |
| } |
| |
| @Override public E floor(E e) { |
| assertTrue(Thread.holdsLock(mutex)); |
| return delegate().floor(e); |
| } |
| |
| @Override public NavigableSet<E> headSet(E toElement, boolean inclusive) { |
| assertTrue(Thread.holdsLock(mutex)); |
| return delegate().headSet(toElement, inclusive); |
| } |
| |
| @Override public SortedSet<E> headSet(E toElement) { |
| return headSet(toElement, false); |
| } |
| |
| @Override public E higher(E e) { |
| assertTrue(Thread.holdsLock(mutex)); |
| return delegate().higher(e); |
| } |
| |
| @Override public E lower(E e) { |
| return delegate().lower(e); |
| } |
| |
| @Override public E pollFirst() { |
| assertTrue(Thread.holdsLock(mutex)); |
| return delegate().pollFirst(); |
| } |
| |
| @Override public E pollLast() { |
| assertTrue(Thread.holdsLock(mutex)); |
| return delegate().pollLast(); |
| } |
| |
| @Override public NavigableSet<E> subSet(E fromElement, |
| boolean fromInclusive, E toElement, boolean toInclusive) { |
| assertTrue(Thread.holdsLock(mutex)); |
| return delegate().subSet( |
| fromElement, fromInclusive, toElement, toInclusive); |
| } |
| |
| @Override public SortedSet<E> subSet(E fromElement, E toElement) { |
| return subSet(fromElement, true, toElement, false); |
| } |
| |
| @Override public NavigableSet<E> tailSet(E fromElement, boolean inclusive) { |
| assertTrue(Thread.holdsLock(mutex)); |
| return delegate().tailSet(fromElement, inclusive); |
| } |
| |
| @Override public SortedSet<E> tailSet(E fromElement) { |
| return tailSet(fromElement, true); |
| } |
| |
| @Override public Comparator<? super E> comparator() { |
| assertTrue(Thread.holdsLock(mutex)); |
| return delegate().comparator(); |
| } |
| |
| @Override public E first() { |
| assertTrue(Thread.holdsLock(mutex)); |
| return delegate().first(); |
| } |
| |
| @Override public E last() { |
| assertTrue(Thread.holdsLock(mutex)); |
| return delegate().last(); |
| } |
| |
| private static final long serialVersionUID = 0; |
| } |
| |
| public static TestSuite suite() { |
| TestSuite suite = new TestSuite(); |
| suite.addTestSuite(SynchronizedNavigableSetTest.class); |
| suite.addTest( |
| NavigableSetTestSuiteBuilder.using(new TestStringSortedSetGenerator() { |
| |
| @Override protected NavigableSet<String> create(String[] elements) { |
| NavigableSet<String> innermost = new SafeTreeSet<String>(); |
| Collections.addAll(innermost, elements); |
| TestSet<String> inner = new TestSet<String>(innermost, MUTEX); |
| NavigableSet<String> outer = |
| Synchronized.navigableSet(inner, MUTEX); |
| return outer; |
| } |
| |
| @Override public List<String> order(List<String> insertionOrder) { |
| return Ordering.natural().sortedCopy(insertionOrder); |
| } |
| }).named("Sets.synchronizedNavigableSet[SafeTreeSet]") |
| .withFeatures(CollectionSize.ANY, CollectionFeature.KNOWN_ORDER, |
| CollectionFeature.GENERAL_PURPOSE, CollectionFeature.SERIALIZABLE) |
| .createTestSuite()); |
| |
| return suite; |
| } |
| |
| public void testDescendingSet() { |
| NavigableSet<String> map = create(); |
| NavigableSet<String> descendingSet = map.descendingSet(); |
| assertTrue(descendingSet instanceof SynchronizedNavigableSet); |
| assertSame(MUTEX, ((SynchronizedNavigableSet<String>) descendingSet).mutex); |
| } |
| |
| public void testHeadSet_E() { |
| NavigableSet<String> map = create(); |
| SortedSet<String> headSet = map.headSet("a"); |
| assertTrue(headSet instanceof SynchronizedSortedSet); |
| assertSame(MUTEX, ((SynchronizedSortedSet<String>) headSet).mutex); |
| } |
| |
| public void testHeadSet_E_B() { |
| NavigableSet<String> map = create(); |
| NavigableSet<String> headSet = map.headSet("a", true); |
| assertTrue(headSet instanceof SynchronizedNavigableSet); |
| assertSame(MUTEX, ((SynchronizedNavigableSet<String>) headSet).mutex); |
| } |
| |
| public void testSubSet_E_E() { |
| NavigableSet<String> map = create(); |
| SortedSet<String> subSet = map.subSet("a", "b"); |
| assertTrue(subSet instanceof SynchronizedSortedSet); |
| assertSame(MUTEX, ((SynchronizedSortedSet<String>) subSet).mutex); |
| } |
| |
| public void testSubSet_E_B_E_B() { |
| NavigableSet<String> map = create(); |
| NavigableSet<String> subSet = map.subSet("a", false, "b", true); |
| assertTrue(subSet instanceof SynchronizedNavigableSet); |
| assertSame(MUTEX, ((SynchronizedNavigableSet<String>) subSet).mutex); |
| } |
| |
| public void testTailSet_E() { |
| NavigableSet<String> map = create(); |
| SortedSet<String> tailSet = map.tailSet("a"); |
| assertTrue(tailSet instanceof SynchronizedSortedSet); |
| assertSame(MUTEX, ((SynchronizedSortedSet<String>) tailSet).mutex); |
| } |
| |
| public void testTailSet_E_B() { |
| NavigableSet<String> map = create(); |
| NavigableSet<String> tailSet = map.tailSet("a", true); |
| assertTrue(tailSet instanceof SynchronizedNavigableSet); |
| assertSame(MUTEX, ((SynchronizedNavigableSet<String>) tailSet).mutex); |
| } |
| } |