Commons Collections example source code file (TestMultiValueMap.java)
The Commons Collections TestMultiValueMap.java source code/*
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* 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,
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* See the License for the specific language governing permissions and
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package org.apache.commons.collections.map;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.Map;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.apache.commons.collections.IteratorUtils;
import org.apache.commons.collections.MultiMap;
import org.apache.commons.collections.TestMultiHashMap;
/**
* TestMultiValueMap.
*
* @author <a href="mailto:jcarman@apache.org">James Carman
* @author Stephen Colebourne
* @since Commons Collections 3.2
*/
public class TestMultiValueMap extends TestCase {
public TestMultiValueMap(String testName) {
super(testName);
}
public static Test suite() {
return new TestSuite(TestMultiHashMap.class);
}
public static void main(String args[]) {
String[] testCaseName = { TestMultiHashMap.class.getName()};
junit.textui.TestRunner.main(testCaseName);
}
public void testNoMappingReturnsNull() {
final MultiValueMap map = createTestMap();
assertNull(map.get("whatever"));
}
public void testValueCollectionType() {
final MultiValueMap map = createTestMap(LinkedList.class);
assertTrue(map.get("one") instanceof LinkedList);
}
public void testMultipleValues() {
final MultiValueMap map = createTestMap(HashSet.class);
final HashSet expected = new HashSet();
expected.add("uno");
expected.add("un");
assertEquals(expected, map.get("one"));
}
public void testContainsValue() {
final MultiValueMap map = createTestMap(HashSet.class);
assertTrue(map.containsValue("uno"));
assertTrue(map.containsValue("un"));
assertTrue(map.containsValue("dos"));
assertTrue(map.containsValue("deux"));
assertTrue(map.containsValue("tres"));
assertTrue(map.containsValue("trois"));
assertFalse(map.containsValue("quatro"));
}
public void testKeyContainsValue() {
final MultiValueMap map = createTestMap(HashSet.class);
assertTrue(map.containsValue("one", "uno"));
assertTrue(map.containsValue("one", "un"));
assertTrue(map.containsValue("two", "dos"));
assertTrue(map.containsValue("two", "deux"));
assertTrue(map.containsValue("three", "tres"));
assertTrue(map.containsValue("three", "trois"));
assertFalse(map.containsValue("four", "quatro"));
}
public void testValues() {
final MultiValueMap map = createTestMap(HashSet.class);
final HashSet expected = new HashSet();
expected.add("uno");
expected.add("dos");
expected.add("tres");
expected.add("un");
expected.add("deux");
expected.add("trois");
final Collection c = map.values();
assertEquals(6, c.size());
assertEquals(expected, new HashSet(c));
}
private MultiValueMap createTestMap() {
return createTestMap(ArrayList.class);
}
private MultiValueMap createTestMap(Class collectionClass) {
final MultiValueMap map = MultiValueMap.decorate(new HashMap(), collectionClass);
map.put("one", "uno");
map.put("one", "un");
map.put("two", "dos");
map.put("two", "deux");
map.put("three", "tres");
map.put("three", "trois");
return map;
}
public void testKeyedIterator() {
final MultiValueMap map = createTestMap();
final ArrayList actual = new ArrayList(IteratorUtils.toList(map.iterator("one")));
final ArrayList expected = new ArrayList(Arrays.asList(new String[]{"uno", "un"}));
assertEquals(expected, actual);
}
public void testRemoveAllViaIterator() {
final MultiValueMap map = createTestMap();
for(Iterator i = map.values().iterator(); i.hasNext();) {
i.next();
i.remove();
}
assertNull(map.get("one"));
assertTrue(map.isEmpty());
}
public void testRemoveAllViaKeyedIterator() {
final MultiValueMap map = createTestMap();
for(Iterator i = map.iterator("one"); i.hasNext();) {
i.next();
i.remove();
}
assertNull(map.get("one"));
assertEquals(4, map.totalSize());
}
public void testTotalSizeA() {
assertEquals(6, createTestMap().totalSize());
}
//-----------------------------------------------------------------------
public void testMapEquals() {
MultiValueMap one = new MultiValueMap();
Integer value = new Integer(1);
one.put("One", value);
one.remove("One", value);
MultiValueMap two = new MultiValueMap();
assertEquals(two, one);
}
//-----------------------------------------------------------------------
public void testGetCollection() {
MultiValueMap map = new MultiValueMap();
map.put("A", "AA");
assertSame(map.get("A"), map.getCollection("A"));
}
public void testTotalSize() {
MultiValueMap map = new MultiValueMap();
assertEquals(0, map.totalSize());
map.put("A", "AA");
assertEquals(1, map.totalSize());
map.put("B", "BA");
assertEquals(2, map.totalSize());
map.put("B", "BB");
assertEquals(3, map.totalSize());
map.put("B", "BC");
assertEquals(4, map.totalSize());
map.remove("A");
assertEquals(3, map.totalSize());
map.remove("B", "BC");
assertEquals(2, map.totalSize());
}
public void testSize() {
MultiValueMap map = new MultiValueMap();
assertEquals(0, map.size());
map.put("A", "AA");
assertEquals(1, map.size());
map.put("B", "BA");
assertEquals(2, map.size());
map.put("B", "BB");
assertEquals(2, map.size());
map.put("B", "BC");
assertEquals(2, map.size());
map.remove("A");
assertEquals(2, map.size());
map.remove("B", "BC");
assertEquals(2, map.size());
}
public void testSize_Key() {
MultiValueMap map = new MultiValueMap();
assertEquals(0, map.size("A"));
assertEquals(0, map.size("B"));
map.put("A", "AA");
assertEquals(1, map.size("A"));
assertEquals(0, map.size("B"));
map.put("B", "BA");
assertEquals(1, map.size("A"));
assertEquals(1, map.size("B"));
map.put("B", "BB");
assertEquals(1, map.size("A"));
assertEquals(2, map.size("B"));
map.put("B", "BC");
assertEquals(1, map.size("A"));
assertEquals(3, map.size("B"));
map.remove("A");
assertEquals(0, map.size("A"));
assertEquals(3, map.size("B"));
map.remove("B", "BC");
assertEquals(0, map.size("A"));
assertEquals(2, map.size("B"));
}
public void testIterator_Key() {
MultiValueMap map = new MultiValueMap();
assertEquals(false, map.iterator("A").hasNext());
map.put("A", "AA");
Iterator it = map.iterator("A");
assertEquals(true, it.hasNext());
it.next();
assertEquals(false, it.hasNext());
}
public void testContainsValue_Key() {
MultiValueMap map = new MultiValueMap();
assertEquals(false, map.containsValue("A", "AA"));
assertEquals(false, map.containsValue("B", "BB"));
map.put("A", "AA");
assertEquals(true, map.containsValue("A", "AA"));
assertEquals(false, map.containsValue("A", "AB"));
}
public void testPutAll_Map1() {
MultiMap original = new MultiValueMap();
original.put("key", "object1");
original.put("key", "object2");
MultiValueMap test = new MultiValueMap();
test.put("keyA", "objectA");
test.put("key", "object0");
test.putAll(original);
assertEquals(2, test.size());
assertEquals(4, test.totalSize());
assertEquals(1, test.getCollection("keyA").size());
assertEquals(3, test.getCollection("key").size());
assertEquals(true, test.containsValue("objectA"));
assertEquals(true, test.containsValue("object0"));
assertEquals(true, test.containsValue("object1"));
assertEquals(true, test.containsValue("object2"));
}
public void testPutAll_Map2() {
Map original = new HashMap();
original.put("keyX", "object1");
original.put("keyY", "object2");
MultiValueMap test = new MultiValueMap();
test.put("keyA", "objectA");
test.put("keyX", "object0");
test.putAll(original);
assertEquals(3, test.size());
assertEquals(4, test.totalSize());
assertEquals(1, test.getCollection("keyA").size());
assertEquals(2, test.getCollection("keyX").size());
assertEquals(1, test.getCollection("keyY").size());
assertEquals(true, test.containsValue("objectA"));
assertEquals(true, test.containsValue("object0"));
assertEquals(true, test.containsValue("object1"));
assertEquals(true, test.containsValue("object2"));
}
public void testPutAll_KeyCollection() {
MultiValueMap map = new MultiValueMap();
Collection coll = Arrays.asList(new Object[] {"X", "Y", "Z"});
assertEquals(true, map.putAll("A", coll));
assertEquals(3, map.size("A"));
assertEquals(true, map.containsValue("A", "X"));
assertEquals(true, map.containsValue("A", "Y"));
assertEquals(true, map.containsValue("A", "Z"));
assertEquals(false, map.putAll("A", null));
assertEquals(3, map.size("A"));
assertEquals(true, map.containsValue("A", "X"));
assertEquals(true, map.containsValue("A", "Y"));
assertEquals(true, map.containsValue("A", "Z"));
assertEquals(false, map.putAll("A", new ArrayList()));
assertEquals(3, map.size("A"));
assertEquals(true, map.containsValue("A", "X"));
assertEquals(true, map.containsValue("A", "Y"));
assertEquals(true, map.containsValue("A", "Z"));
coll = Arrays.asList(new Object[] {"M"});
assertEquals(true, map.putAll("A", coll));
assertEquals(4, map.size("A"));
assertEquals(true, map.containsValue("A", "X"));
assertEquals(true, map.containsValue("A", "Y"));
assertEquals(true, map.containsValue("A", "Z"));
assertEquals(true, map.containsValue("A", "M"));
}
public void testRemove_KeyItem() {
MultiValueMap map = new MultiValueMap();
map.put("A", "AA");
map.put("A", "AB");
map.put("A", "AC");
assertEquals(null, map.remove("C", "CA"));
assertEquals(null, map.remove("A", "AD"));
assertEquals("AC", map.remove("A", "AC"));
assertEquals("AB", map.remove("A", "AB"));
assertEquals("AA", map.remove("A", "AA"));
assertEquals(new MultiValueMap(), map);
}
}
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