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/*************************************************************************
/* Unread.java -- PushbackInputStream basic unread tests.
/*
/* Copyright (c) 1998, 1999 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
/*************************************************************************/
// Tags: JDK1.1
package gnu.testlet.java.io.PushbackInputStream;
import gnu.testlet.Testlet;
import gnu.testlet.TestHarness;
import java.io.*;
public class Unread implements Testlet
{
public void
test(TestHarness harness)
{
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";
try
{
PushbackInputStream pist = new PushbackInputStream(
new StringBufferInputStream(str), 15);
harness.check(pist.available(), str.length(), "available()");
harness.check(!pist.markSupported(), "markSupported()");
byte[] read_buf1 = new byte[12];
byte[] read_buf2 = new byte[12];
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])
throw new IOException("Re-reading bytes gave different results");
}
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)
{
harness.debug(new String(read_buf1, 0, bytes_read), false);
total_read += bytes_read;
}
harness.debug(str);
harness.check(total_read, str.length(), "total_read == str.length()");
}
catch(IOException e)
{
harness.debug(e);
harness.check(false);
}
}
} // class Unread
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