1 package org.apache.lucene.util;
4 * Licensed to the Apache Software Foundation (ASF) under one or more
5 * contributor license agreements. See the NOTICE file distributed with
6 * this work for additional information regarding copyright ownership.
7 * The ASF licenses this file to You under the Apache License, Version 2.0
8 * (the "License"); you may not use this file except in compliance with
9 * the License. You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
20 import java.util.Comparator;
23 * Tests for StringHelper.getVersionComparator
25 public class TestVersionComparator extends LuceneTestCase {
26 public void testVersions() {
27 Comparator<String> comp = StringHelper.getVersionComparator();
28 assertTrue(comp.compare("1", "2") < 0);
29 assertTrue(comp.compare("1", "1") == 0);
30 assertTrue(comp.compare("2", "1") > 0);
32 assertTrue(comp.compare("1.1", "1") > 0);
33 assertTrue(comp.compare("1", "1.1") < 0);
34 assertTrue(comp.compare("1.1", "1.1") == 0);
36 assertTrue(comp.compare("1.0", "1") == 0);
37 assertTrue(comp.compare("1", "1.0") == 0);
38 assertTrue(comp.compare("1.0.1", "1.0") > 0);
39 assertTrue(comp.compare("1.0", "1.0.1") < 0);
41 assertTrue(comp.compare("1.02.003", "1.2.3.0") == 0);
42 assertTrue(comp.compare("1.2.3.0", "1.02.003") == 0);
44 assertTrue(comp.compare("1.10", "1.9") > 0);
45 assertTrue(comp.compare("1.9", "1.10") < 0);
47 assertTrue(comp.compare("0", "1.0") < 0);
48 assertTrue(comp.compare("00", "1.0") < 0);
49 assertTrue(comp.compare("-1.0", "1.0") < 0);
50 assertTrue(comp.compare("3.0", Integer.toString(Integer.MIN_VALUE)) > 0);