/*
* 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.openjpa.lib.rop;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import java.util.NoSuchElementException;
import org.apache.openjpa.lib.test.AbstractTestCase;
/**
* Tests for {@link ResultList} implementations.
*
* @author Abe White
*/
public abstract class ResultListTest extends AbstractTestCase {
private ResultList[] _lists = null;
protected boolean subListSupported = false;
public ResultListTest(String test) {
super(test);
}
public ResultListTest(String test, boolean supportSubList) {
super(test);
subListSupported = supportSubList;
}
/**
* Return a result list to use with the given provider.
*/
protected abstract ResultList getResultList(ResultObjectProvider provider);
/**
* Override to customize the result object provider being used. You
* can return multiple providers to test with each.
*/
protected ResultObjectProvider[] getResultObjectProviders(List list) {
return new ResultObjectProvider[]{
new ListResultObjectProvider(list)
};
}
public void setUp() {
List results = new ArrayList(100);
for (int i = 0; i < 100; i++)
results.add(String.valueOf(i));
ResultObjectProvider[] rops = getResultObjectProviders(results);
_lists = new ResultList[rops.length];
for (int i = 0; i < _lists.length; i++)
_lists[i] = getResultList(rops[i]);
}
public void testIterator() {
for (int i = 0; i < _lists.length; i++) {
Iterator itr = _lists[i].iterator();
int count = 0;
for (; itr.hasNext(); count++)
assertEquals(String.valueOf(count), itr.next());
assertEquals(100, count);
try {
itr.next();
fail("After last.");
} catch (IndexOutOfBoundsException ioob) {
} catch (NoSuchElementException nse) {
}
}
}
public void testIteratorModification() {
for (int i = 0; i < _lists.length; i++) {
try {
Iterator itr = _lists[i].iterator();
itr.next();
itr.remove();
fail("Allowed modification.");
} catch (Exception e) {
}
}
}
public void testListIteratorForward() {
for (int i = 0; i < _lists.length; i++) {
ListIterator itr = _lists[i].listIterator();
int count = 0;
for (; itr.hasNext(); count++) {
assertEquals(count, itr.nextIndex());
assertEquals(String.valueOf(count), itr.next());
}
assertEquals(100, count);
try {
itr.next();
fail("After last.");
} catch (IndexOutOfBoundsException ioob) {
} catch (NoSuchElementException nse) {
}
}
}
public void testListIteratorIndex() {
for (int i = 0; i < _lists.length; i++) {
ListIterator itr = _lists[i].listIterator(50);
int count = 50;
for (; itr.hasNext(); count++) {
assertEquals(count, itr.nextIndex());
assertEquals(String.valueOf(count), itr.next());
}
assertEquals(100, count);
try {
itr.next();
fail("After last.");
} catch (IndexOutOfBoundsException ioob) {
} catch (NoSuchElementException nse) {
}
}
}
public void testListIteratorReverse() {
for (int i = 0; i < _lists.length; i++) {
ListIterator itr = _lists[i].listIterator(100);
int count = 99;
for (; itr.hasPrevious(); count--) {
assertEquals(count, itr.previousIndex());
assertEquals(String.valueOf(count), itr.previous());
}
assertEquals(-1, count);
try {
itr.previous();
fail("Before first.");
} catch (IndexOutOfBoundsException ioob) {
} catch (NoSuchElementException nse) {
}
}
}
public void testListIteratorModification() {
for (int i = 0; i < _lists.length; i++) {
try {
ListIterator itr = _lists[i].listIterator();
itr.next();
itr.set("foo");
fail("Allowed modification.");
} catch (Exception e) {
}
}
}
public void testMultipleIterations() {
testListIteratorIndex();
testListIteratorForward();
testListIteratorReverse();
}
public void testContains() {
for (int i = 0; i < _lists.length; i++) {
assertTrue(_lists[i].contains("0"));
assertTrue(_lists[i].contains("50"));
assertTrue(_lists[i].contains("99"));
assertFalse(_lists[i].contains("-1"));
assertFalse(_lists[i].contains("100"));
assertFalse(_lists[i].contains(null));
assertTrue(_lists[i].containsAll(Arrays.asList(new String[]
{ "0", "50", "99" })));
assertFalse(_lists[i].containsAll(Arrays.asList(new String[]
{ "0", "-1", "99" })));
}
}
public void testModification() {
for (int i = 0; i < _lists.length; i++) {
try {
_lists[i].add("foo");
fail("Allowed modification.");
} catch (UnsupportedOperationException uoe) {
}
try {
_lists[i].remove("1");
fail("Allowed modification.");
} catch (UnsupportedOperationException uoe) {
}
try {
_lists[i].set(0, "foo");
fail("Allowed modification.");
} catch (UnsupportedOperationException uoe) {
}
}
}
public void testGetBegin() {
for (int i = 0; i < _lists.length; i++) {
for (int j = 0; j < 10; j++)
assertEquals(String.valueOf(j), _lists[i].get(j));
try {
_lists[i].get(-1);
fail("Before begin.");
} catch (IndexOutOfBoundsException ioob) {
} catch (NoSuchElementException nse) {
}
}
}
public void testGetMiddle() {
for (int i = 0; i < _lists.length; i++)
for (int j = 50; j < 60; j++)
assertEquals(String.valueOf(j), _lists[i].get(j));
}
public void testGetEnd() {
for (int i = 0; i < _lists.length; i++) {
for (int j = 90; j < 100; j++)
assertEquals(String.valueOf(j), _lists[i].get(j));
try {
_lists[i].get(100);
fail("Past end.");
} catch (IndexOutOfBoundsException ioob) {
} catch (NoSuchElementException nse) {
}
}
}
public void testGetReverse() {
for (int i = 0; i < _lists.length; i++)
for (int j = 99; j > -1; j--)
assertEquals(String.valueOf(j), _lists[i].get(j));
}
public void testMultipleGet() {
testGetMiddle();
testGetBegin();
testGetEnd();
// take list size and traverse list to cache values if not already
for (int i = 0; i < _lists.length; i++)
_lists[i].size();
testListIteratorForward();
testGetMiddle();
testGetBegin();
testGetEnd();
}
public void testSize() {
for (int i = 0; i < _lists.length; i++)
assertTrue(_lists[i].size() == 100
|| _lists[i].size() == Integer.MAX_VALUE);
}
public void testEmpty() {
ResultObjectProvider[] rops = getResultObjectProviders
(Collections.EMPTY_LIST);
for (int i = 0; i < rops.length; i++) {
ResultList list = getResultList(rops[i]);
assertEquals(0, list.size());
assertTrue(list.isEmpty());
}
}
public void testSubList() {
ResultObjectProvider[] rops = getResultObjectProviders
(Collections.EMPTY_LIST);
for (int i = 0; i < rops.length; i++) {
ResultList list = getResultList(rops[i]);
try {
List subList = list.subList(0, 0);
if (subListSupported == false)
fail("Should not support subList.");
} catch (UnsupportedOperationException e) {
if (subListSupported == true)
fail("Should support subList.");
}
}
}
}