Main.java revision 2ad60cfc28e14ee8f0bb038720836a4696c478ad 
1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
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
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
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.
15 */
16
17import junit.framework.Assert;
18
19/**
20 * more string tests
21 */
22public class Main {
23    public static void main(String args[]) {
24        String test = "0123456789";
25        String test1 = new String("0123456789");    // different object
26        String test2 = new String("0123456780");    // different value
27        String offset = new String("xxx0123456789yyy");
28        String sub = offset.substring(3, 13);
29        Object blah = new Object();
30
31        Assert.assertTrue(test.equals(test));
32        Assert.assertTrue(test.equals(test1));
33        Assert.assertFalse(test.equals(test2));
34
35        Assert.assertEquals(test.compareTo(test1), 0);
36        Assert.assertTrue(test1.compareTo(test2) > 0);
37        Assert.assertTrue(test2.compareTo(test1) < 0);
38
39        /* compare string with a nonzero offset, in left/right side */
40        Assert.assertEquals(test.compareTo(sub), 0);
41        Assert.assertEquals(sub.compareTo(test), 0);
42        Assert.assertTrue(test.equals(sub));
43        Assert.assertTrue(sub.equals(test));
44        /* same base, one is a substring */
45        Assert.assertFalse(offset.equals(sub));
46        Assert.assertFalse(sub.equals(offset));
47        /* wrong class */
48        Assert.assertFalse(test.equals(blah));
49
50        /* null ptr - throw */
51        try {
52            test.compareTo(null);
53            Assert.fail("didn't get expected npe");
54        } catch (NullPointerException npe) {
55            System.out.println("Got expected npe");
56        }
57        /* null ptr - ok */
58        Assert.assertFalse(test.equals(null));
59
60        test = test.substring(1);
61        Assert.assertTrue(test.equals("123456789"));
62        Assert.assertFalse(test.equals(test1));
63
64        test = test.substring(1);
65        Assert.assertTrue(test.equals("23456789"));
66
67        test = test.substring(1);
68        Assert.assertTrue(test.equals("3456789"));
69
70        test = test.substring(1);
71        Assert.assertTrue(test.equals("456789"));
72
73        test = test.substring(3,5);
74        Assert.assertTrue(test.equals("78"));
75
76        test = "this/is/a/path";
77        String[] strings = test.split("/");
78        Assert.assertEquals(4, strings.length);
79
80        Assert.assertEquals("this is a path", test.replaceAll("/", " "));
81        Assert.assertEquals("this is a path", test.replace("/", " "));
82    }
83}
84