/*
* Copyright (c) 2008-2014 MongoDB, Inc.
*
* Licensed 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.bson;
import org.junit.Test;
import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;
import static java.util.Arrays.asList;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
@SuppressWarnings("rawtypes")
public class LazyBSONListTest {
private LazyBSONList encodeAndExtractList(final List<?> list) {
BSONObject document = new BasicBSONObject("l", list);
return (LazyBSONList) new LazyBSONObject(BSON.encode(document), new LazyBSONCallback()).get("l");
}
@Test
public void testArray() {
LazyBSONList list = encodeAndExtractList(asList(1, 2, 3));
assertEquals(3, list.size());
assertEquals(1, list.get(0));
assertEquals(2, list.get(1));
assertEquals(3, list.get(2));
}
@Test
public void testEmptyArray() {
LazyBSONList list = encodeAndExtractList(asList());
assertEquals(0, list.size());
assertFalse(list.iterator().hasNext());
}
@Test
public void testIndexOf() {
LazyBSONList list = encodeAndExtractList(asList("a", "b", "z"));
assertEquals(0, list.indexOf("a"));
assertEquals(2, list.indexOf("z"));
assertEquals(-1, list.indexOf("y"));
}
@Test
public void testLastIndexOf() {
LazyBSONList list = encodeAndExtractList(asList("a", "b", "z", "b", "b", "z"));
assertEquals(4, list.lastIndexOf("b"));
assertEquals(5, list.lastIndexOf("z"));
assertEquals(0, list.lastIndexOf("a"));
assertEquals(-1, list.lastIndexOf("x"));
}
@Test
public void testContainsAll() {
LazyBSONList list = encodeAndExtractList(asList("a", "b", "z"));
assertTrue(list.containsAll(asList("a", "b")));
assertFalse(list.containsAll(asList("a", "b", "c", "z")));
}
@Test
public void testIterator() {
LazyBSONList list = encodeAndExtractList(asList("a", "b"));
Iterator it = list.iterator();
assertTrue(it.hasNext());
assertEquals("a", it.next());
assertTrue(it.hasNext());
assertEquals("b", it.next());
assertFalse(it.hasNext());
}
@Test(expected = NoSuchElementException.class)
public void testIteratorNextWhileNothingLeft() {
LazyBSONList list = encodeAndExtractList(asList());
Iterator it = list.iterator();
assertFalse(it.hasNext());
it.next();
}
}