2 * Copyright 2007 ZXing authors
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package com.google.zxing.common;
19 import org.junit.Assert;
20 import org.junit.Test;
22 import java.util.Random;
23 import java.util.Vector;
28 public final class CollectionsTestCase extends Assert {
31 public void testSort() {
32 Random r = new Random(0xDEADBEEFL);
33 Vector<Integer> v = new Vector<Integer>(100);
34 for (int i = 0; i < 100; i++) {
35 v.addElement(r.nextInt(1000));
37 Collections.insertionSort(v, new Comparator() {
38 public int compare(Object o1, Object o2) {
39 return (Integer) o1 - (Integer) o2;
42 for (int i = 1; i < 100; i++) {
43 assertTrue("Element " + i, v.elementAt(i - 1) <= v.elementAt(i));