1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
/*************************************************************************
/* BufferedReaderTest.java -- Tests BufferedReader's
/*
/* Copyright (c) 1998 Free Software Foundation, Inc.
/* Written by Aaron M. Renn (arenn@urbanophile.com)
/*
/* This program is free software; you can redistribute it and/or modify
/* it under the terms of the GNU General Public License as published
/* by the Free Software Foundation, either version 2 of the License, or
/* (at your option) any later version.
/*
/* This program is distributed in the hope that it will be useful, but
/* WITHOUT ANY WARRANTY; without even the implied warranty of
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
/* GNU General Public License for more details.
/*
/* You should have received a copy of the GNU General Public License
/* along with this program; if not, write to the Free Software Foundation
/* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 USA
/*************************************************************************/
import java.io.*;
public class BufferedReaderTest extends CharArrayReader
{
// Hehe. We override CharArrayReader.markSupported() in order to return
// false so that we can test BufferedReader's handling of mark/reset in
// both the case where the underlying stream does and does not support
// mark/reset
public boolean
markSupported()
{
return(false);
}
public
BufferedReaderTest(char[] buf)
{
super(buf);
}
public static int
marktest(Reader ins) throws IOException
{
BufferedReader br = new BufferedReader(ins, 15);
int chars_read;
int total_read = 0;
char[] buf = new char[12];
chars_read = br.read(buf);
total_read += chars_read;
System.out.print(new String(buf, 0, chars_read));
chars_read = br.read(buf);
total_read += chars_read;
System.out.print(new String(buf, 0, chars_read));
br.mark(75);
br.read();
br.read(buf);
br.read(buf);
br.read(buf);
br.reset();
chars_read = br.read(buf);
total_read += chars_read;
System.out.print(new String(buf, 0, chars_read));
br.mark(555);
chars_read = br.read(buf);
total_read += chars_read;
System.out.print(new String(buf, 0, chars_read));
br.reset();
br.read(buf);
chars_read = br.read(buf);
total_read += chars_read;
System.out.print(new String(buf, 0, chars_read));
chars_read = br.read(buf);
total_read += chars_read;
System.out.print(new String(buf, 0, chars_read));
br.mark(14);
br.read(buf);
br.reset();
chars_read = br.read(buf);
total_read += chars_read;
System.out.print(new String(buf, 0, chars_read));
while ((chars_read = br.read(buf)) != -1)
{
System.out.print(new String(buf, 0, chars_read));
total_read += chars_read;
}
return(total_read);
}
public static void
main(String[] argv)
{
System.out.println("Started test of BufferedReader");
try
{
System.out.println("Test 1: Simple Read Test");
String str = "My 5th grade teacher was named Mr. Thompson. Terry\n" +
"George Thompson to be precise. He had these sideburns like\n" +
"Isaac Asimov's, only uglier. One time he had a contest and said\n" +
"that if any kid who could lift 50lbs worth of weights on a barbell\n" +
"all the way over their head, he would shave it off. Nobody could\n" +
"though. One time I guess I made a comment about how stupid his\n" +
"sideburns worked and he not only kicked me out of class, he called\n" +
"my mother. Jerk.\n";
StringReader sr = new StringReader(str);
BufferedReader br = new BufferedReader(sr, 15);
char[] buf = new char[12];
int chars_read;
while((chars_read = br.read(buf)) != -1)
System.out.print(new String(buf, 0, chars_read));
br.close();
System.out.println("PASSED: Simple Read Test");
}
catch (IOException e)
{
System.out.println("FAILED: Simple Read Test: " + e);
}
try
{
System.out.println("Test 2: First mark/reset Test");
String str = "Growing up in a rural area brings such delights. One\n" +
"time my uncle called me up and asked me to come over and help him\n" +
"out with something. Since he lived right across the field, I\n" +
"walked right over. Turned out he wanted me to come down to the\n" +
"barn and help him castrate a calf. Oh, that was fun. Not.\n";
StringReader sr = new StringReader(str);
// BufferedReader br = new BufferedReader(sr);
int total_read = marktest(sr);
if (total_read == str.length())
System.out.println("PASSED: First mark/reset Test");
else
System.out.println("FAILED: First mark/reset Test");
}
catch (IOException e)
{
System.out.println("FAILED: First mark/reset Test: " + e);
}
try
{
System.out.println("Test 3: Second mark/reset Test");
String str = "Growing up we heated our house with a wood stove. That\n" +
"thing could pump out some BTU's, let me tell you. No matter how\n" +
"cold it got outside, it was always warm inside. Of course the\n" +
"downside is that somebody had to chop the wood for the stove. That\n" +
"somebody was me. I was slave labor. My uncle would go back and\n" +
"chain saw up dead trees and I would load the wood in wagons and\n" +
"split it with a maul. Somehow my no account brother always seemed\n" +
"to get out of having to work.\n";
char[] buf = new char[str.length()];
str.getChars(0, str.length(), buf, 0);
BufferedReaderTest brt = new BufferedReaderTest(buf);
// BufferedReader br = new BufferedReader(car);
int total_read = marktest(brt);
if (total_read == str.length())
System.out.println("PASSED: Second mark/reset Test");
else
System.out.println("FAILED: Second mark/reset Test");
}
catch (IOException e)
{
System.out.println("FAILED: Second mark/reset Test: " + e);
}
System.out.println("Finished test of BufferedReader");
} // main
} // class BufferedReaderTest
|
