| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.commons.collections4.set; |
| |
| import static org.junit.jupiter.api.Assertions.assertThrows; |
| |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.commons.collections4.set.CompositeSet.SetMutator; |
| import org.junit.jupiter.api.Test; |
| |
| /** |
| * Extension of {@link AbstractSetTest} for exercising the |
| * {@link CompositeSet} implementation. |
| * |
| * @since 3.0 |
| */ |
| public class CompositeSetTest<E> extends AbstractSetTest<E> { |
| |
| public CompositeSetTest() { |
| super(CompositeSetTest.class.getSimpleName()); |
| } |
| |
| @Override |
| public CompositeSet<E> makeObject() { |
| final HashSet<E> contained = new HashSet<>(); |
| final CompositeSet<E> set = new CompositeSet<>(contained); |
| set.setMutator( new EmptySetMutator<>(contained) ); |
| return set; |
| } |
| |
| @SuppressWarnings("unchecked") |
| public Set<E> buildOne() { |
| final HashSet<E> set = new HashSet<>(); |
| set.add((E) "1"); |
| set.add((E) "2"); |
| return set; |
| } |
| |
| @SuppressWarnings("unchecked") |
| public Set<E> buildTwo() { |
| final HashSet<E> set = new HashSet<>(); |
| set.add((E) "3"); |
| set.add((E) "4"); |
| return set; |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void testContains() { |
| final CompositeSet<E> set = new CompositeSet<>(buildOne(), buildTwo()); |
| assertTrue(set.contains("1")); |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void testContainsAll() { |
| final CompositeSet<E> set = new CompositeSet<>(buildOne(), buildTwo()); |
| assertFalse(set.containsAll(null)); |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void testRemoveAll() { |
| final CompositeSet<E> set = new CompositeSet<>(buildOne(), buildTwo()); |
| assertFalse(set.removeAll(null)); |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void testRemoveUnderlying() { |
| final Set<E> one = buildOne(); |
| final Set<E> two = buildTwo(); |
| final CompositeSet<E> set = new CompositeSet<>(one, two); |
| one.remove("1"); |
| assertFalse(set.contains("1")); |
| |
| two.remove("3"); |
| assertFalse(set.contains("3")); |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void testRemoveComposited() { |
| final Set<E> one = buildOne(); |
| final Set<E> two = buildTwo(); |
| final CompositeSet<E> set = new CompositeSet<>(one, two); |
| set.remove("1"); |
| assertFalse(one.contains("1")); |
| |
| set.remove("3"); |
| assertFalse(one.contains("3")); |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void testFailedCollisionResolution() { |
| final Set<E> one = buildOne(); |
| final Set<E> two = buildTwo(); |
| final CompositeSet<E> set = new CompositeSet<>(one, two); |
| set.setMutator(new SetMutator<E>() { |
| private static final long serialVersionUID = 1L; |
| |
| @Override |
| public void resolveCollision(final CompositeSet<E> comp, final Set<E> existing, |
| final Set<E> added, final Collection<E> intersects) { |
| //noop |
| } |
| |
| @Override |
| public boolean add(final CompositeSet<E> composite, |
| final List<Set<E>> collections, final E obj) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public boolean addAll(final CompositeSet<E> composite, |
| final List<Set<E>> collections, final Collection<? extends E> coll) { |
| throw new UnsupportedOperationException(); |
| } |
| }); |
| |
| final HashSet<E> three = new HashSet<>(); |
| three.add((E) "1"); |
| assertThrows(IllegalArgumentException.class, () -> set.addComposited(three), |
| "IllegalArgumentException should have been thrown"); |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void testAddComposited() { |
| final Set<E> one = buildOne(); |
| final Set<E> two = buildTwo(); |
| final CompositeSet<E> set = new CompositeSet<>(); |
| set.addComposited(one, two); |
| set.addComposited((Set<E>) null); |
| set.addComposited((Set<E>[]) null); |
| set.addComposited(null, null); |
| set.addComposited(null, null, null); |
| final CompositeSet<E> set2 = new CompositeSet<>(buildOne()); |
| set2.addComposited(buildTwo()); |
| assertEquals(set, set2); |
| final HashSet<E> set3 = new HashSet<>(); |
| set3.add((E) "1"); |
| set3.add((E) "2"); |
| set3.add((E) "3"); |
| final HashSet<E> set4 = new HashSet<>(); |
| set4.add((E) "4"); |
| final CompositeSet<E> set5 = new CompositeSet<>(set3); |
| set5.addComposited(set4); |
| assertEquals(set, set5); |
| assertThrows(UnsupportedOperationException.class, () -> set.addComposited(set3), |
| "Expecting UnsupportedOperationException."); |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void testAddCompositedCollision() { |
| final HashSet<E> set1 = new HashSet<>(); |
| set1.add((E) "1"); |
| set1.add((E) "2"); |
| set1.add((E) "3"); |
| final HashSet<E> set2 = new HashSet<>(); |
| set2.add((E) "4"); |
| final CompositeSet<E> set3 = new CompositeSet<>(set1); |
| assertThrows(UnsupportedOperationException.class, () -> set3.addComposited(set1, buildOne()), |
| "Expecting UnsupportedOperationException."); |
| assertThrows(UnsupportedOperationException.class, () -> set3.addComposited(set1, buildOne(), buildTwo()), |
| "Expecting UnsupportedOperationException."); |
| } |
| |
| @Override |
| public String getCompatibilityVersion() { |
| return "4"; |
| } |
| |
| @Override |
| protected int getIterationBehaviour() { |
| return UNORDERED; |
| } |
| |
| // public void testCreate() throws Exception { |
| // resetEmpty(); |
| // writeExternalFormToDisk((java.io.Serializable) getCollection(), "src/test/resources/data/test/CompositeSet.emptyCollection.version4.obj"); |
| // resetFull(); |
| // writeExternalFormToDisk((java.io.Serializable) getCollection(), "src/test/resources/data/test/CompositeSet.fullCollection.version4.obj"); |
| // } |
| |
| } |