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1
4 package net.javacoding.jspider.core.util;
5
6 import junit.framework.TestCase;
7
8 public class StringUtilTest extends TestCase {
9
10 public StringUtilTest ( ) {
11 super ( "StringUtilTest" );
12 }
13
14 public void testDoNothing ( ) {
15 String  original = "This is a string";
16 String expected = new String (original);
17 String pattern="pattern";
18 String replacement = "[replaced]";
19
20 String result = StringUtil.replace(original, pattern, replacement);
21 assertEquals ( "replacement failed", expected, result);
22 }
23
24 public void testSimple ( ) {
25 String original = "This is a string with a pattern in it";
26 String expected = "This is a string with a [replaced] in it";
27 String pattern="pattern";
28 String replacement = "[replaced]";
29
30 String result = StringUtil.replace(original, pattern, replacement);
31 assertEquals ( "replacement failed", expected, result);
32 }
33
34 public void testBeginning ( ) {
35 String original = "pattern at the start of this string must be replaced";
36 String expected = "[replaced] at the start of this string must be replaced";
37 String pattern="pattern";
38 String replacement = "[replaced]";
39
40 String result = StringUtil.replace(original, pattern, replacement);
41 assertEquals ( "replacement failed", expected, result);
42 }
43
44 public void testEnd ( ) {
45 String original = "At the end of this string, ther's a pattern";
46 String expected = "At the end of this string, ther's a [replaced]";
47 String pattern="pattern";
48 String replacement = "[replaced]";
49
50 String result = StringUtil.replace(original, pattern, replacement);
51 assertEquals ( "replacement failed", expected, result);
52 }
53
54 public void testMultiple ( ) {
55 String original = "pattern, here, pattern there, hope all this patterns will be replaced by pattern";
56 String expected = "[replaced], here, [replaced] there, hope all this [replaced]s will be replaced by [replaced]";
57 String pattern="pattern";
58 String replacement = "[replaced]";
59
60 String result = StringUtil.replace(original, pattern, replacement);
61 assertEquals ( "replacement failed", expected, result);
62 }
63
64 public void testSmall ( ) {
65 String original = "..........";
66 String expected = "xxxxxxxxxx";
67 String pattern=".";
68 String replacement = "x";
69
70 String result = StringUtil.replace(original, pattern, replacement);
71 assertEquals ( "replacement failed", expected, result);
72 }
73
74 public void testReplacementIncludesPattern ( ) {
75 String original = "..........";
76 String expected = "....................";
77 String pattern=".";
78 String replacement = "..";
79
80 String result = StringUtil.replace(original, pattern, replacement);
81 assertEquals ( "replacement failed", expected, result);
82 }
83
84 public void testPatternIncludesReplacement ( ) {
85 String original = "....................";
86 String expected = "..........";
87 String pattern="..";
88 String replacement = ".";
89
90 String result = StringUtil.replace(original, pattern, replacement);
91 assertEquals ( "replacement failed", expected, result);
92 }
93
94 public void testReplacementZeroSizeString ( ) {
95 String original = "";
96 String expected = "";
97 String pattern="pattern";
98 String replacement = "replaced";
99 String result = StringUtil.replace(original, pattern, replacement);
100 assertEquals ( "replacement failed", expected, result);
101 }
102
103 public void testReplacementZeroSizePattern ( ) {
104 String original = "a simple string";
105 String expected = "a simple string";
106 String pattern="";
107 String replacement = "replaced";
108 String result = StringUtil.replace(original, pattern, replacement);
109 assertEquals ( "replacement failed", expected, result);
110 }
111
112 public void testReplacementNullString ( ) {
113 String original = null;
114 String expected = null;
115 String pattern="";
116 String replacement = "replaced";
117 String result = StringUtil.replace(original, pattern, replacement);
118 assertEquals ( "replacement failed", expected, result);
119 }
120
121 public void testReplacementNullPattern ( ) {
122 String original = "a simple string";
123 String expected = "a simple string";
124 String pattern=null;
125 String replacement = "replaced";
126 String result = StringUtil.replace(original, pattern, replacement);
127 assertEquals ( "replacement failed", expected, result);
128 }
129
130 }
131 |
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