/*
* 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.map;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import junit.framework.Test;
import org.apache.commons.collections4.BulkTest;
import org.apache.commons.collections4.MapIterator;
import org.apache.commons.collections4.OrderedMap;
import org.apache.commons.collections4.ResettableIterator;
import org.apache.commons.collections4.list.AbstractListTest;
/**
* JUnit tests.
*
* @version $Id$
*/
public class LinkedMapTest<K, V> extends AbstractOrderedMapTest<K, V> {
public LinkedMapTest(final String testName) {
super(testName);
}
public static Test suite() {
return BulkTest.makeSuite(LinkedMapTest.class);
}
@Override
public LinkedMap<K, V> makeObject() {
return new LinkedMap<K, V>();
}
/**
* {@inheritDoc}
*/
@Override
public LinkedMap<K, V> makeFullMap() {
return (LinkedMap<K, V>) super.makeFullMap();
}
@Override
public String getCompatibilityVersion() {
return "4";
}
//-----------------------------------------------------------------------
@SuppressWarnings("unchecked")
public void testReset() {
resetEmpty();
OrderedMap<K, V> ordered = getMap();
((ResettableIterator<K>) ordered.mapIterator()).reset();
resetFull();
ordered = getMap();
final List<K> list = new ArrayList<K>(ordered.keySet());
final ResettableIterator<K> it = (ResettableIterator<K>) ordered.mapIterator();
assertSame(list.get(0), it.next());
assertSame(list.get(1), it.next());
it.reset();
assertSame(list.get(0), it.next());
}
//-----------------------------------------------------------------------
public void testInsertionOrder() {
if (!isPutAddSupported() || !isPutChangeSupported()) {
return;
}
final K[] keys = getSampleKeys();
final V[] values = getSampleValues();
Iterator<K> keyIter;
Iterator<V> valueIter;
resetEmpty();
map.put(keys[0], values[0]);
map.put(keys[1], values[1]);
keyIter = map.keySet().iterator();
assertSame(keys[0], keyIter.next());
assertSame(keys[1], keyIter.next());
valueIter = map.values().iterator();
assertSame(values[0], valueIter.next());
assertSame(values[1], valueIter.next());
// no change to order
map.put(keys[1], values[1]);
keyIter = map.keySet().iterator();
assertSame(keys[0], keyIter.next());
assertSame(keys[1], keyIter.next());
valueIter = map.values().iterator();
assertSame(values[0], valueIter.next());
assertSame(values[1], valueIter.next());
// no change to order
map.put(keys[1], values[2]);
keyIter = map.keySet().iterator();
assertSame(keys[0], keyIter.next());
assertSame(keys[1], keyIter.next());
valueIter = map.values().iterator();
assertSame(values[0], valueIter.next());
assertSame(values[2], valueIter.next());
// no change to order
map.put(keys[0], values[3]);
keyIter = map.keySet().iterator();
assertSame(keys[0], keyIter.next());
assertSame(keys[1], keyIter.next());
valueIter = map.values().iterator();
assertSame(values[3], valueIter.next());
assertSame(values[2], valueIter.next());
}
//-----------------------------------------------------------------------
public void testGetByIndex() {
resetEmpty();
LinkedMap<K, V> lm = getMap();
try {
lm.get(0);
} catch (final IndexOutOfBoundsException ex) {}
try {
lm.get(-1);
} catch (final IndexOutOfBoundsException ex) {}
resetFull();
lm = getMap();
try {
lm.get(-1);
} catch (final IndexOutOfBoundsException ex) {}
try {
lm.get(lm.size());
} catch (final IndexOutOfBoundsException ex) {}
int i = 0;
for (final MapIterator<K, V> it = lm.mapIterator(); it.hasNext(); i++) {
assertSame(it.next(), lm.get(i));
}
}
public void testGetValueByIndex() {
resetEmpty();
LinkedMap<K, V> lm = getMap();
try {
lm.getValue(0);
} catch (final IndexOutOfBoundsException ex) {}
try {
lm.getValue(-1);
} catch (final IndexOutOfBoundsException ex) {}
resetFull();
lm = getMap();
try {
lm.getValue(-1);
} catch (final IndexOutOfBoundsException ex) {}
try {
lm.getValue(lm.size());
} catch (final IndexOutOfBoundsException ex) {}
int i = 0;
for (final MapIterator<K, V> it = lm.mapIterator(); it.hasNext(); i++) {
it.next();
assertSame(it.getValue(), lm.getValue(i));
}
}
public void testIndexOf() {
resetEmpty();
LinkedMap<K, V> lm = getMap();
assertEquals(-1, lm.indexOf(getOtherKeys()));
resetFull();
lm = getMap();
final List<K> list = new ArrayList<K>();
for (final MapIterator<K, V> it = lm.mapIterator(); it.hasNext();) {
list.add(it.next());
}
for (int i = 0; i < list.size(); i++) {
assertEquals(i, lm.indexOf(list.get(i)));
}
}
public void testRemoveByIndex() {
resetEmpty();
LinkedMap<K, V> lm = getMap();
try {
lm.remove(0);
} catch (final IndexOutOfBoundsException ex) {}
try {
lm.remove(-1);
} catch (final IndexOutOfBoundsException ex) {}
resetFull();
lm = getMap();
try {
lm.remove(-1);
} catch (final IndexOutOfBoundsException ex) {}
try {
lm.remove(lm.size());
} catch (final IndexOutOfBoundsException ex) {}
final List<K> list = new ArrayList<K>();
for (final MapIterator<K, V> it = lm.mapIterator(); it.hasNext();) {
list.add(it.next());
}
for (int i = 0; i < list.size(); i++) {
final Object key = list.get(i);
final Object value = lm.get(key);
assertEquals(value, lm.remove(i));
list.remove(i);
assertEquals(false, lm.containsKey(key));
}
}
public BulkTest bulkTestListView() {
return new TestListView();
}
public class TestListView extends AbstractListTest<K> {
TestListView() {
super("TestListView");
}
@Override
public List<K> makeObject() {
return LinkedMapTest.this.makeObject().asList();
}
@Override
public List<K> makeFullCollection() {
return LinkedMapTest.this.makeFullMap().asList();
}
@Override
public K[] getFullElements() {
return LinkedMapTest.this.getSampleKeys();
}
@Override
public boolean isAddSupported() {
return false;
}
@Override
public boolean isRemoveSupported() {
return false;
}
@Override
public boolean isSetSupported() {
return false;
}
@Override
public boolean isNullSupported() {
return LinkedMapTest.this.isAllowNullKey();
}
@Override
public boolean isTestSerialization() {
return false;
}
}
@SuppressWarnings("unchecked")
public void testClone() {
final LinkedMap<K, V> map = new LinkedMap<K, V>(10);
map.put((K) "1", (V) "1");
final Map<K, V> cloned = map.clone();
assertEquals(map.size(), cloned.size());
assertSame(map.get("1"), cloned.get("1"));
}
// public void testCreate() throws Exception {
// resetEmpty();
// writeExternalFormToDisk((java.io.Serializable) map, "src/test/resources/data/test/LinkedMap.emptyCollection.version4.obj");
// resetFull();
// writeExternalFormToDisk((java.io.Serializable) map, "src/test/resources/data/test/LinkedMap.fullCollection.version4.obj");
// }
/**
* {@inheritDoc}
*/
@Override
public LinkedMap<K, V> getMap() {
return (LinkedMap<K, V>) super.getMap();
}
/**
* Test for <a href="https://issues.apache.org/jira/browse/COLLECTIONS-323">COLLECTIONS-323</a>.
*/
public void testInitialCapacityZero() {
final LinkedMap<String,String> map = new LinkedMap<String,String>(0);
assertEquals(1, map.data.length);
}
}