/*
* 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.collections.set;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import junit.framework.Test;
import junit.framework.TestSuite;
/**
* Extension of {@link TestSet} for exercising the {@link ListOrderedSet}
* implementation.
*
* @since Commons Collections 3.0
* @version $Revision: 646780 $ $Date: 2008-04-10 13:48:07 +0100 (Thu, 10 Apr 2008) $
*
* @author Henning P. Schmiedehausen
* @author Stephen Colebourne
*/
public class TestListOrderedSet extends AbstractTestSet {
public TestListOrderedSet(String testName) {
super(testName);
}
public static Test suite() {
return new TestSuite(TestListOrderedSet.class);
}
public static void main(String args[]) {
String[] testCaseName = { TestListOrderedSet.class.getName()};
junit.textui.TestRunner.main(testCaseName);
}
public Set makeEmptySet() {
return ListOrderedSet.decorate(new HashSet());
}
protected Set setupSet() {
Set set = makeEmptySet();
for (int i = 0; i < 10; i++) {
set.add(Integer.toString(i));
}
return set;
}
public void testOrdering() {
Set set = setupSet();
Iterator it = set.iterator();
for (int i = 0; i < 10; i++) {
assertEquals("Sequence is wrong", Integer.toString(i), it.next());
}
for (int i = 0; i < 10; i += 2) {
assertTrue("Must be able to remove int", set.remove(Integer.toString(i)));
}
it = set.iterator();
for (int i = 1; i < 10; i += 2) {
assertEquals("Sequence is wrong after remove ", Integer.toString(i), it.next());
}
for (int i = 0; i < 10; i++) {
set.add(Integer.toString(i));
}
assertEquals("Size of set is wrong!", 10, set.size());
it = set.iterator();
for (int i = 1; i < 10; i += 2) {
assertEquals("Sequence is wrong", Integer.toString(i), it.next());
}
for (int i = 0; i < 10; i += 2) {
assertEquals("Sequence is wrong", Integer.toString(i), it.next());
}
}
private static final Integer ZERO = new Integer(0);
private static final Integer ONE = new Integer(1);
private static final Integer TWO = new Integer(2);
private static final Integer THREE = new Integer(3);
public void testListAddRemove() {
ListOrderedSet set = (ListOrderedSet) makeEmptySet();
List view = set.asList();
set.add(ZERO);
set.add(ONE);
set.add(TWO);
assertEquals(3, set.size());
assertSame(ZERO, set.get(0));
assertSame(ONE, set.get(1));
assertSame(TWO, set.get(2));
assertEquals(3, view.size());
assertSame(ZERO, view.get(0));
assertSame(ONE, view.get(1));
assertSame(TWO, view.get(2));
assertEquals(0, set.indexOf(ZERO));
assertEquals(1, set.indexOf(ONE));
assertEquals(2, set.indexOf(TWO));
set.remove(1);
assertEquals(2, set.size());
assertSame(ZERO, set.get(0));
assertSame(TWO, set.get(1));
assertEquals(2, view.size());
assertSame(ZERO, view.get(0));
assertSame(TWO, view.get(1));
}
public void testListAddIndexed() {
ListOrderedSet set = (ListOrderedSet) makeEmptySet();
set.add(ZERO);
set.add(TWO);
set.add(1, ONE);
assertEquals(3, set.size());
assertSame(ZERO, set.get(0));
assertSame(ONE, set.get(1));
assertSame(TWO, set.get(2));
set.add(0, ONE);
assertEquals(3, set.size());
assertSame(ZERO, set.get(0));
assertSame(ONE, set.get(1));
assertSame(TWO, set.get(2));
List list = new ArrayList();
list.add(ZERO);
list.add(TWO);
set.addAll(0, list);
assertEquals(3, set.size());
assertSame(ZERO, set.get(0));
assertSame(ONE, set.get(1));
assertSame(TWO, set.get(2));
list.add(0, THREE); // list = [3,0,2]
set.remove(TWO); // set = [0,1]
set.addAll(1, list);
assertEquals(4, set.size());
assertSame(ZERO, set.get(0));
assertSame(THREE, set.get(1));
assertSame(TWO, set.get(2));
assertSame(ONE, set.get(3));
}
public void testListAddReplacing() {
ListOrderedSet set = (ListOrderedSet) makeEmptySet();
A a = new A();
B b = new B();
set.add(a);
assertEquals(1, set.size());
set.add(b); // will match but not replace A as equal
assertEquals(1, set.size());
assertSame(a, set.getSet().iterator().next());
assertSame(a, set.iterator().next());
assertSame(a, set.get(0));
assertSame(a, set.asList().get(0));
}
static class A {
public boolean equals(Object obj) {
return (obj instanceof A || obj instanceof B);
}
public int hashCode() {
return 1;
}
}
static class B {
public boolean equals(Object obj) {
return (obj instanceof A || obj instanceof B);
}
public int hashCode() {
return 1;
}
}
public void testDecorator() {
try {
ListOrderedSet.decorate((List) null);
fail();
} catch (IllegalArgumentException ex) {}
try {
ListOrderedSet.decorate((Set) null);
fail();
} catch (IllegalArgumentException ex) {}
try {
ListOrderedSet.decorate(null, null);
fail();
} catch (IllegalArgumentException ex) {}
try {
ListOrderedSet.decorate(new HashSet(), null);
fail();
} catch (IllegalArgumentException ex) {}
try {
ListOrderedSet.decorate(null, new ArrayList());
fail();
} catch (IllegalArgumentException ex) {}
}
public String getCompatibilityVersion() {
return "3.1";
}
// public void testCreate() throws Exception {
// resetEmpty();
// writeExternalFormToDisk((java.io.Serializable) collection, "D:/dev/collections/data/test/ListOrderedSet.emptyCollection.version3.1.obj");
// resetFull();
// writeExternalFormToDisk((java.io.Serializable) collection, "D:/dev/collections/data/test/ListOrderedSet.fullCollection.version3.1.obj");
// }
}