| /* |
| * 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 java.util.Arrays.asList; |
| |
| import com.google.common.collect.testing.MinimalSet; |
| 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 junit.framework.Test; |
| import junit.framework.TestSuite; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * Tests for {@code ForwardingSet}. |
| * |
| * @author Robert Konigsberg |
| * @author Louis Wasserman |
| */ |
| public class ForwardingSetTest extends ForwardingTestCase { |
| static class StandardImplForwardingSet<T> extends ForwardingSet<T> { |
| private final Set<T> backingSet; |
| |
| StandardImplForwardingSet(Set<T> backingSet) { |
| this.backingSet = backingSet; |
| } |
| |
| @Override protected Set<T> delegate() { |
| return backingSet; |
| } |
| |
| @Override public boolean equals(Object object) { |
| return standardEquals(object); |
| } |
| |
| @Override public int hashCode() { |
| return standardHashCode(); |
| } |
| |
| @Override public boolean addAll(Collection<? extends T> collection) { |
| return standardAddAll(collection); |
| } |
| |
| @Override public void clear() { |
| standardClear(); |
| } |
| |
| @Override public boolean contains(Object object) { |
| return standardContains(object); |
| } |
| |
| @Override public boolean containsAll(Collection<?> collection) { |
| return standardContainsAll(collection); |
| } |
| |
| @Override public boolean remove(Object object) { |
| return standardRemove(object); |
| } |
| |
| @Override public boolean removeAll(Collection<?> collection) { |
| return standardRemoveAll(collection); |
| } |
| |
| @Override public boolean retainAll(Collection<?> collection) { |
| return standardRetainAll(collection); |
| } |
| |
| @Override public Object[] toArray() { |
| return standardToArray(); |
| } |
| |
| @Override public <T> T[] toArray(T[] array) { |
| return standardToArray(array); |
| } |
| |
| @Override public String toString() { |
| return standardToString(); |
| } |
| } |
| |
| private static final List<String> EMPTY_LIST = |
| Collections.<String>emptyList(); |
| |
| Set<String> forward; |
| |
| public static Test suite() { |
| TestSuite suite = new TestSuite(); |
| |
| suite.addTestSuite(ForwardingSetTest.class); |
| suite.addTest( |
| SetTestSuiteBuilder.using(new TestStringSetGenerator() { |
| @Override protected Set<String> create(String[] elements) { |
| return new StandardImplForwardingSet<String>( |
| Sets.newLinkedHashSet(asList(elements))); |
| } |
| }).named( |
| "ForwardingSet[LinkedHashSet] with standard implementations") |
| .withFeatures(CollectionSize.ANY, |
| CollectionFeature.ALLOWS_NULL_VALUES, |
| CollectionFeature.GENERAL_PURPOSE).createTestSuite()); |
| suite.addTest( |
| SetTestSuiteBuilder.using(new TestStringSetGenerator() { |
| @Override protected Set<String> create(String[] elements) { |
| return new StandardImplForwardingSet<String>( |
| MinimalSet.of(elements)); |
| } |
| }).named( |
| "ForwardingSet[MinimalSet] with standard implementations") |
| .withFeatures(CollectionSize.ANY, |
| CollectionFeature.ALLOWS_NULL_VALUES).createTestSuite()); |
| |
| return suite; |
| } |
| |
| @Override public void setUp() throws Exception { |
| super.setUp(); |
| /* |
| * Class parameters must be raw, so we can't create a proxy with generic |
| * type arguments. The created proxy only records calls and returns null, so |
| * the type is irrelevant at runtime. |
| */ |
| @SuppressWarnings("unchecked") |
| final Set<String> set = createProxyInstance(Set.class); |
| forward = new ForwardingSet<String>() { |
| @Override protected Set<String> delegate() { |
| return set; |
| } |
| }; |
| } |
| |
| public void testAdd_T() { |
| forward().add("asdf"); |
| assertEquals("[add(Object)]", getCalls()); |
| } |
| |
| public void testAddAll_Collection() { |
| forward().addAll(EMPTY_LIST); |
| assertEquals("[addAll(Collection)]", getCalls()); |
| } |
| |
| public void testClear() { |
| forward().clear(); |
| assertEquals("[clear]", getCalls()); |
| } |
| |
| public void testContains_Object() { |
| forward().contains(null); |
| assertEquals("[contains(Object)]", getCalls()); |
| } |
| |
| public void testContainsAll_Collection() { |
| forward().containsAll(EMPTY_LIST); |
| assertEquals("[containsAll(Collection)]", getCalls()); |
| } |
| |
| public void testIsEmpty() { |
| forward().isEmpty(); |
| assertEquals("[isEmpty]", getCalls()); |
| } |
| |
| public void testIterator() { |
| forward().iterator(); |
| assertEquals("[iterator]", getCalls()); |
| } |
| |
| public void testRemove_Object() { |
| forward().remove(null); |
| assertEquals("[remove(Object)]", getCalls()); |
| } |
| |
| public void testRemoveAll_Collection() { |
| forward().removeAll(EMPTY_LIST); |
| assertEquals("[removeAll(Collection)]", getCalls()); |
| } |
| |
| public void testRetainAll_Collection() { |
| forward().retainAll(EMPTY_LIST); |
| assertEquals("[retainAll(Collection)]", getCalls()); |
| } |
| |
| public void testSize() { |
| forward().size(); |
| assertEquals("[size]", getCalls()); |
| } |
| |
| public void testToArray() { |
| forward().toArray(); |
| assertEquals("[toArray]", getCalls()); |
| } |
| |
| public void testToArray_TArray() { |
| forward().toArray(new String[0]); |
| assertEquals("[toArray(Object[])]", getCalls()); |
| } |
| |
| public void testToString() { |
| forward().toString(); |
| assertEquals("[toString]", getCalls()); |
| } |
| |
| Set<String> forward() { |
| return forward; |
| } |
| } |