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Merged HEAD-QA to HEAD (4.2) (including moving test classes into separate folders)
51903 to 54309 git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@54310 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Samuel Langlois
264
source/test-java/org/alfresco/util/ValueProtectingMapTest.java
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264
source/test-java/org/alfresco/util/ValueProtectingMapTest.java
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/*
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* Copyright (C) 2005-2012 Alfresco Software Limited.
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*
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* This file is part of Alfresco
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*
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* Alfresco is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Alfresco is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.alfresco.util;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.Serializable;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import junit.framework.TestCase;
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/**
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* Tests {@link ValueProtectingMap}
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*
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* @author Derek Hulley
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* @since 3.4.9
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* @since 4.0.1
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*/
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public class ValueProtectingMapTest extends TestCase
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{
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private static Set<Class<?>> moreImmutableClasses;
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static
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{
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moreImmutableClasses = new HashSet<Class<?>>(13);
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moreImmutableClasses.add(TestImmutable.class);
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}
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/**
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* A class that is immutable
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*/
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@SuppressWarnings("serial")
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private static class TestImmutable implements Serializable
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{
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}
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/**
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* A class that is mutable
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*/
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@SuppressWarnings("serial")
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private static class TestMutable extends TestImmutable
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{
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public int i = 0;
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public void increment()
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{
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i++;
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}
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@Override
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public boolean equals(Object obj)
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{
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if (this == obj) return true;
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if (obj == null) return false;
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if (getClass() != obj.getClass()) return false;
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TestMutable other = (TestMutable) obj;
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if (i != other.i) return false;
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return true;
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}
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}
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private List<String> valueList;
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private Map<String, String> valueMap;
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private Date valueDate;
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private TestImmutable valueImmutable;
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private TestMutable valueMutable;
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private ValueProtectingMap<String, Serializable> map;
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private Map<String, Serializable> holyMap;
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@Override
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protected void setUp() throws Exception
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{
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valueList = new ArrayList<String>(4);
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valueList.add("ONE");
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valueList.add("TWO");
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valueList.add("THREE");
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valueList.add("FOUR");
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valueList = Collections.unmodifiableList(valueList);
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valueMap = new HashMap<String, String>(5);
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valueMap.put("ONE", "ONE");
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valueMap.put("TWO", "TWO");
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valueMap.put("THREE", "THREE");
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valueMap.put("FOUR", "FOUR");
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valueMap = Collections.unmodifiableMap(valueMap);
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valueDate = new Date();
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valueImmutable = new TestImmutable();
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valueMutable = new TestMutable();
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holyMap = new HashMap<String, Serializable>();
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holyMap.put("DATE", valueDate);
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holyMap.put("LIST", (Serializable) valueList);
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holyMap.put("MAP", (Serializable) valueMap);
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holyMap.put("IMMUTABLE", valueImmutable);
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holyMap.put("MUTABLE", valueMutable);
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// Now wrap our 'holy' map so that it cannot be modified
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holyMap = Collections.unmodifiableMap(holyMap);
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map = new ValueProtectingMap<String, Serializable>(holyMap, moreImmutableClasses);
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}
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/**
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* Make sure that NOTHING has changed in our 'holy' map
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*/
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private void checkMaps(boolean expectMapClone)
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{
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assertEquals("Holy map size is wrong: ", 5, holyMap.size());
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// Note that the immutability of the maps and lists means that we don't need
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// to check every value within the lists and maps
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if (expectMapClone)
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{
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// Make sure that the holy map has been released
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assertTrue("Expect holy map to have been released: ", map.getProtectedMap() != holyMap);
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// Do some updates to the backing map and ensure that they stick
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Map<String, Serializable> mapClone = map.getProtectedMap();
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mapClone.put("ONE", "ONE");
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assertEquals("Modified the backing directly but value is not visible: ", map.get("ONE"), "ONE");
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map.put("TWO", "TWO");
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assertTrue("Backing map was changed again!", mapClone == map.getProtectedMap());
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mapClone.containsKey("TWO");
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}
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else
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{
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// Make sure that the holy map is still acting as the backing map
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assertTrue("Expect holy map to still be in use: ", map.getProtectedMap() == holyMap);
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}
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}
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public void testSetup()
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{
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checkMaps(false);
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}
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/**
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* No matter how many times we wrap instances in instances, the backing map must remain
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* the same.
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*/
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public void testMapWrapping()
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{
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ValueProtectingMap<String, Serializable> mapTwo = new ValueProtectingMap<String, Serializable>(map);
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assertTrue("Backing map must be shared: ", mapTwo.getProtectedMap() == map.getProtectedMap());
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ValueProtectingMap<String, Serializable> mapThree = new ValueProtectingMap<String, Serializable>(map);
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assertTrue("Backing map must be shared: ", mapThree.getProtectedMap() == map.getProtectedMap());
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}
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public void testMapClear()
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{
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map.clear();
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assertEquals("Map should be empty: ", 0, map.size());
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checkMaps(true);
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}
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public void testMapContainsKey()
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{
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assertTrue(map.containsKey("LIST"));
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assertFalse(map.containsKey("LISTXXX"));
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checkMaps(false);
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}
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public void testMapContainsValue()
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{
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assertTrue(map.containsValue(valueMutable));
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assertFalse(map.containsValue("Dassie"));
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checkMaps(false);
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}
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public void testMapEntrySet()
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{
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map.entrySet();
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checkMaps(true);
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}
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/**
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* Ensures that single, immutable values are given out as-is and
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* without affecting the backing storage
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*/
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public void testMapGetImmutable()
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{
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assertTrue("Immutable value instance incorrect", map.get("IMMUTABLE") == valueImmutable);
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checkMaps(false);
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}
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/**
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* Ensures that single, immutable values are cloned before being given out
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* without affecting the backing storage
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*/
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public void testMapGetMutable()
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{
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TestMutable mutable = (TestMutable) map.get("MUTABLE");
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assertFalse("Mutable value instance incorrect", mutable == valueMutable);
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checkMaps(false);
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// Modify the instance
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mutable.increment();
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assertEquals("Backing mutable should not have changed: ", 0, valueMutable.i);
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}
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public void testMapIsEmpty()
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{
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assertFalse(map.isEmpty());
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checkMaps(false);
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}
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public void testMapKeySet()
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{
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map.keySet();
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checkMaps(true);
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}
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public void testMapPut()
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{
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map.put("ANOTHER", "VALUE");
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checkMaps(true);
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}
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public void testMapPutAll()
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{
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map.putAll(holyMap);
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checkMaps(true);
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}
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@SuppressWarnings("unchecked")
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public void testSerializability() throws Exception
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{
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map.put("MORE", "STUFF");
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checkMaps(true);
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ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
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ObjectOutputStream os = new ObjectOutputStream(baos);
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os.writeObject(map);
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os.close();
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// Read it back in
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ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
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ObjectInputStream ois = new ObjectInputStream(bais);
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ValueProtectingMap<String, Serializable> reloadedMap = (ValueProtectingMap<String, Serializable>) ois.readObject();
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ois.close();
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// Make sure it has the value
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assertEquals("Reloaded object not same.", "STUFF", reloadedMap.get("MORE"));
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}
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}
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