/*
* #%L
* Alfresco Records Management Module
* %%
* Copyright (C) 2005 - 2016 Alfresco Software Limited
* %%
* This file is part of the Alfresco software.
* -
* If the software was purchased under a paid Alfresco license, the terms of
* the paid license agreement will prevail. Otherwise, the software is
* provided under the following open source license terms:
* -
* Alfresco is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* -
* Alfresco is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
* -
* You should have received a copy of the GNU Lesser General Public License
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
* #L%
*/
package org.alfresco.module.org_alfresco_module_rm.util;
import static java.util.Arrays.asList;
import static java.util.Collections.emptyList;
import static com.google.common.collect.Sets.newHashSet;
import static org.alfresco.module.org_alfresco_module_rm.test.util.ExceptionUtils.expectedException;
import static org.alfresco.module.org_alfresco_module_rm.util.RMCollectionUtils.asSet;
import static org.alfresco.module.org_alfresco_module_rm.util.RMCollectionUtils.diffKey;
import static org.alfresco.module.org_alfresco_module_rm.util.RMCollectionUtils.head;
import static org.alfresco.module.org_alfresco_module_rm.util.RMCollectionUtils.tail;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.alfresco.module.org_alfresco_module_rm.util.RMCollectionUtils.Difference;
import org.junit.Test;
/**
* Unit tests for {@link RMCollectionUtils}.
*
* @author Neil Mc Erlean
* @since 2.4.a
*/
public class RMCollectionUtilsUnitTest
{
@Test public void getDuplicateElements()
{
List<String> l = asList("A", "B", "C", "B", "A");
assertEquals("Failed to identify duplicate elements", asList("B", "A"), RMCollectionUtils.getDuplicateElements(l));
assertEquals(Collections.emptyList(), RMCollectionUtils.getDuplicateElements(asList("A", "B", "C")));
}
@Test public void compareMaps()
{
// Set up two maps to compare
final Map<Integer, Integer> mapA = new HashMap<>();
final Map<Integer, Integer> mapB = new HashMap<>();
// Fill one map with numbers and their squares...
for (int i : asList(1, 2, 3, 4, 5))
{
mapA.put(i, i*i);
}
// ... the other one has the same entries...
mapB.putAll(mapA);
// ... but with an addition, a deletion and a value change.
mapB.put(6, 36);
mapB.remove(1);
mapB.put(3, 100);
// Now ensure that various changes are correctly identified
assertEquals(Difference.REMOVED, diffKey(mapA, mapB, 1));
assertEquals(Difference.ADDED, diffKey(mapA, mapB, 6));
assertEquals(Difference.UNCHANGED, diffKey(mapA, mapB, 2));
assertEquals(Difference.UNCHANGED, diffKey(mapA, mapB, -1));
assertEquals(Difference.CHANGED, diffKey(mapA, mapB, 3));
}
@Test public void tailsOfLists()
{
assertEquals(asList(2), tail(asList(1, 2)));
assertEquals(emptyList(), tail(asList(1)));
expectedException(UnsupportedOperationException.class, () -> tail(emptyList()));
}
@Test public void headsOfLists()
{
assertEquals("a", head(asList("a", "b")));
assertEquals("a", head(asList("a")));
assertNull(head(emptyList()));
}
@Test public void elementsAsSet()
{
assertEquals(newHashSet("hello", "world"), asSet("hello", "world"));
assertEquals(newHashSet(3, 7, 31, 127), asSet(3, 7, 31, 127));
}
@Test public void elementsAsSerializableList()
{
// If these lines compile, then we're good
Serializable s = RMCollectionUtils.<String, ArrayList<String>>asSerializableList("one", "two", "three");
List<String> l = RMCollectionUtils.<String, ArrayList<String>>asSerializableList("one", "two", "three");
assertEquals(s, l);
}
}