_StringBufferTestCase


1   /***
2    * Retrotranslator: a Java bytecode transformer that translates Java classes
3    * compiled with JDK 5.0 into classes that can be run on JVM 1.4.
4    * 
5    * Copyright (c) 2005 - 2007 Taras Puchko
6    * All rights reserved.
7    *
8    * Redistribution and use in source and binary forms, with or without
9    * modification, are permitted provided that the following conditions
10   * are met:
11   * 1. Redistributions of source code must retain the above copyright
12   *    notice, this list of conditions and the following disclaimer.
13   * 2. Redistributions in binary form must reproduce the above copyright
14   *    notice, this list of conditions and the following disclaimer in the
15   *    documentation and/or other materials provided with the distribution.
16   * 3. Neither the name of the copyright holders nor the names of its
17   *    contributors may be used to endorse or promote products derived from
18   *    this software without specific prior written permission.
19   *
20   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30   * THE POSSIBILITY OF SUCH DAMAGE.
31   */
32  package net.sf.retrotranslator.runtime.java.lang;
33  
34  import junit.framework.TestCase;
35  
36  /**
37   * @author Taras Puchko
38   */
39  public class _StringBufferTestCase extends TestCase {
40  
41      public void testConvertConstructorArguments() throws Exception   {
42          CharSequence   sequence = "abc";
43          assertEquals("abc", new StringBuffer  (sequence).toString());
44          sequence = null;
45          try {
46              new StringBuilder  (sequence);
47              fail();
48          } catch (NullPointerException   e) {
49              //ok
50          }
51      }
52  
53      public void testAppend() throws Exception   {
54          CharSequence   sequence = "xyz";
55          assertEquals("abcxyz", new StringBuffer  ("abc").append(sequence).toString());
56          assertEquals("abcy", new StringBuilder  ("abc").append(sequence, 1, 2).toString());
57      }
58  
59      public void testAppendCodePoint() throws Exception   {
60          assertEquals("abc", new StringBuffer  ("a").appendCodePoint('b').append('c').toString());
61          assertEquals("a\uD834\uDD1Eb", new StringBuffer  ("a").appendCodePoint(0x1D11E).append('b').toString());
62          try {
63              new StringBuffer  ().appendCodePoint(-1);
64              fail();
65          } catch (IllegalArgumentException   e) {
66              //ok
67          }
68      }
69  
70      public void testCodePointAt() throws Exception   {
71          assertEquals('b', new StringBuffer  ("ab").codePointAt(1));
72          assertEquals(0x1D11E, new StringBuffer  ("b\uD834\uDD1Ec").codePointAt(1));
73          assertEquals(0xD834, new StringBuffer  ("b\uD834").codePointAt(1));
74          try {
75              new StringBuffer  ("abc").codePointAt(-1);
76              fail();
77          } catch (IndexOutOfBoundsException   e) {
78              //ok
79          }
80          try {
81              new StringBuffer  ("abc").codePointAt(3);
82              fail();
83          } catch (IndexOutOfBoundsException   e) {
84              //ok
85          }
86      }
87  
88      public void testCodePointBefore() throws Exception   {
89          assertEquals('a', new StringBuffer  ("ab").codePointBefore(1));
90          assertEquals(0x1D11E, new StringBuffer  ("b\uD834\uDD1Ec").codePointBefore(3));
91          assertEquals(0xDD1E, new StringBuffer  ("\uDD1E").codePointBefore(1));
92          try {
93              new StringBuffer  ("abc").codePointBefore(0);
94              fail();
95          } catch (IndexOutOfBoundsException   e) {
96              //ok
97          }
98          try {
99              new StringBuffer  ("abc").codePointBefore(4);
100             fail();
101         } catch (IndexOutOfBoundsException   e) {
102             //ok
103         }
104     }
105 
106     public void testCodePointCount() throws Exception   {
107         assertEquals(2, new StringBuffer  ("abcd").codePointCount(1, 3));
108         assertEquals(3, new StringBuffer  ("b\uD834\uDD1Ec").codePointCount(0, 4));
109         assertEquals(2, new StringBuffer  ("b\uD834\uDD1Ec").codePointCount(0, 2));
110         assertEquals(2, new StringBuffer  ("b\uD834").codePointCount(0, 2));
111         try {
112             new StringBuffer  ("abc").codePointCount(-1, 1);
113             fail();
114         } catch (IndexOutOfBoundsException   e) {
115             //ok
116         }
117         try {
118             new StringBuffer  ("abc").codePointCount(1, 0);
119             fail();
120         } catch (IndexOutOfBoundsException   e) {
121             //ok
122         }
123         try {
124             new StringBuffer  ("abc").codePointCount(5, 5);
125             fail();
126         } catch (IndexOutOfBoundsException   e) {
127             //ok
128         }
129         try {
130             new StringBuffer  ("abc").codePointCount(1, 5);
131             fail();
132         } catch (IndexOutOfBoundsException   e) {
133             //ok
134         }
135     }
136 
137     public void testInsert() throws Exception   {
138         CharSequence   sequence = "xyz";
139         assertEquals("axyzbc", new StringBuffer  ("abc").insert(1, sequence).toString());
140         assertEquals("aybc", new StringBuilder  ("abc").insert(1, sequence, 1, 2).toString());
141     }
142 
143     public void testOffsetByCodePoints() throws Exception   {
144         assertEquals(3, new StringBuffer  ("abc").offsetByCodePoints(1, 2));
145         assertEquals(1, new StringBuffer  ("abc").offsetByCodePoints(1, 0));
146         assertEquals(3, new StringBuffer  ("b\uD834\uDD1Ec").offsetByCodePoints(0, 2));
147         try {
148             new StringBuffer  ("abc").offsetByCodePoints(-1, 1);
149             fail();
150         } catch (IndexOutOfBoundsException   e) {
151             //ok
152         }
153         try {
154             new StringBuffer  ("abc").offsetByCodePoints(10, 0);
155             fail();
156         } catch (IndexOutOfBoundsException   e) {
157             //ok
158         }
159         try {
160             new StringBuffer  ("abc").offsetByCodePoints(0, 5);
161             fail();
162         } catch (IndexOutOfBoundsException   e) {
163             //ok
164         }
165         try {
166             new StringBuffer  ("abc").offsetByCodePoints(2, -5);
167             fail();
168         } catch (IndexOutOfBoundsException   e) {
169             //ok
170         }
171     }
172 
173 }
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