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From-SVN: r102074
This commit is contained in:
Tom Tromey 2005-07-16 00:30:23 +00:00
parent 6f4434b39b
commit f911ba985a
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133
libjava/classpath/test/java.io/PushbackInputStreamTest.java Normal file
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/*************************************************************************
/* PushbackInputStreamTest.java -- Tests PushbackInputStream's of course
/*
/* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
/*************************************************************************/
import java.io.*;
public class PushbackInputStreamTest extends PushbackInputStream
{
public
PushbackInputStreamTest(InputStream is, int size)
{
super(is, size);
}
public static void
main(String[] argv)
{
System.out.println("Started test of PushbackInputStream");
String str = "Once when I was in fourth grade, my friend Lloyd\n" +
"Saltsgaver and I got in trouble for kicking a bunch of\n" +
"Kindergartners off the horse swings so we could play a game\n" +
"of 'road hog'\n";
System.out.println("Test 1: Protected Variables Test");
{
PushbackInputStreamTest pist = new PushbackInputStreamTest(
new StringBufferInputStream(str), 15);
boolean passed = true;
if (pist.pos != pist.buf.length)
{
passed = false;
System.out.println("The pos variable is wrong. Expected " +
pist.buf.length + " but got " + pist.pos);
}
if (pist.buf.length != 15)
{
passed = false;
System.out.println("The buf.length is wrong. Expected 15" +
" but got " + pist.buf.length);
}
if (passed)
System.out.println("PASSED: Protected Variables Test");
else
System.out.println("FAILED: Protected Variables Test");
}
System.out.println("Test 2: Basic Unread Tests");
try
{
PushbackInputStreamTest pist = new PushbackInputStreamTest(
new StringBufferInputStream(str), 15);
byte[] read_buf1 = new byte[12];
byte[] read_buf2 = new byte[12];
boolean passed = true;
pist.read(read_buf1);
pist.unread(read_buf1);
pist.read(read_buf2);
for (int i = 0; i < read_buf1.length; i++)
{
if (read_buf1[i] != read_buf2[i])
passed = false;
}
pist.unread(read_buf2, 1, read_buf2.length - 1);
pist.unread(read_buf2[0]);
int bytes_read, total_read = 0;
while ((bytes_read = pist.read(read_buf1)) != -1)
{
System.out.print(new String(read_buf1, 0, bytes_read));
total_read += bytes_read;
}
if (total_read != str.length())
passed = false;
if (passed)
System.out.println("PASSED: Basic Unread Tests");
else
System.out.println("FAILED: Basic Unread Tests");
}
catch(IOException e)
{
System.out.println("FAILED: Basic Unread Tests: " + e);
}
System.out.println("Test 3: Buffer Overflow Test");
try
{
PushbackInputStreamTest pist = new PushbackInputStreamTest(
new StringBufferInputStream(str), 10);
byte[] read_buf = new byte[12];
pist.read(read_buf);
pist.unread(read_buf);
System.out.println("FAILED: Buffer Overflow Test");
}
catch(IOException e)
{
System.out.println("PASSED: Buffer Overflow Test: " + e);
}
System.out.println("Finished tests of PushbackInputStream");
} // main
} // class PushbackInputStreamTest