gcc/libjava/classpath/test/java.io/BufferedInputStreamTest.java
Tom Tromey f911ba985a Initial revision
From-SVN: r102074
2005-07-16 00:30:23 +00:00

241 lines
7.2 KiB
Java

/*************************************************************************
/* BufferedInputStreamTest.java -- Tests BufferedInputStream'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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
/*************************************************************************/
import java.io.*;
public class BufferedInputStreamTest extends BufferedInputStream
{
public
BufferedInputStreamTest(InputStream in, int size)
{
super(in, size);
}
public static int
marktest(InputStream ins) throws IOException
{
BufferedInputStream bis = new BufferedInputStream(ins, 15);
int bytes_read;
int total_read = 0;
byte[] buf = new byte[12];
bytes_read = bis.read(buf);
total_read += bytes_read;
System.out.print(new String(buf, 0, bytes_read));
bytes_read = bis.read(buf);
total_read += bytes_read;
System.out.print(new String(buf, 0, bytes_read));
bis.mark(75);
bis.read();
bis.read(buf);
bis.read(buf);
bis.read(buf);
bis.reset();
bytes_read = bis.read(buf);
total_read += bytes_read;
System.out.print(new String(buf, 0, bytes_read));
bis.mark(555);
bytes_read = bis.read(buf);
total_read += bytes_read;
System.out.print(new String(buf, 0, bytes_read));
bis.reset();
bis.read(buf);
bytes_read = bis.read(buf);
total_read += bytes_read;
System.out.print(new String(buf, 0, bytes_read));
bytes_read = bis.read(buf);
total_read += bytes_read;
System.out.print(new String(buf, 0, bytes_read));
bis.mark(14);
bis.read(buf);
bis.reset();
bytes_read = bis.read(buf);
total_read += bytes_read;
System.out.print(new String(buf, 0, bytes_read));
while ((bytes_read = bis.read(buf)) != -1)
{
System.out.print(new String(buf, 0, bytes_read));
total_read += bytes_read;
}
return(total_read);
}
public static void
main(String[] argv)
{
System.out.println("Started test of BufferedInputStream");
try
{
System.out.println("Test 1: Protected Variables Test");
String str = "This is a test line of text for this pass";
StringBufferInputStream sbis = new StringBufferInputStream(str);
BufferedInputStreamTest bist = new BufferedInputStreamTest(sbis, 12);
bist.read();
bist.mark(5);
boolean passed = true;
if (bist.buf.length != 12)
{
passed = false;
System.out.println("buf.length is wrong. Expected 12, but got " +
bist.buf.length);
}
if (bist.count != 12)
{
passed = false;
System.out.println("count is wrong. Expected 12, but got " +
bist.count);
}
if (bist.marklimit != 5)
{
passed = false;
System.out.println("marklimit is wrong. Expected 5, but got " +
bist.marklimit);
}
if (bist.markpos != 1)
{
passed = false;
System.out.println("markpos is wrong. Expected 5, but got " +
bist.markpos);
}
if (bist.pos != 1)
{
passed = false;
System.out.println("pos is wrong. Expected 1, but got " +
bist.pos);
}
if (passed)
System.out.println("PASSED: Protected Variables Test");
else
System.out.println("FAILED: Protected Variables Test");
}
catch(IOException e)
{
System.out.println("FAILED: Protected Variables Test: " + e);
}
try
{
System.out.println("Test 2: Simple Read Test");
String str = "One of my 8th grade teachers was Mr. Russell.\n" +
"He used to start each year off by telling the class that the\n" +
"earth was flat. He did it to teach people to question\n" +
"things they are told. But everybody knew that he did it\n" +
"so it lost its effect.\n";
StringBufferInputStream sbis = new StringBufferInputStream(str);
BufferedInputStream bis = new BufferedInputStream(sbis, 15);
byte[] buf = new byte[12];
int bytes_read;
while((bytes_read = bis.read(buf)) != -1)
System.out.print(new String(buf, 0, bytes_read));
bis.close();
System.out.println("PASSED: Simple Read Test");
}
catch (IOException e)
{
System.out.println("FAILED: Simple Read Test: " + e);
}
try
{
System.out.println("Test 3: First mark/reset Test");
String str = "My 6th grade teacher was named Mrs. Hostetler.\n" +
"She had a whole list of rules that you were supposed to follow\n" +
"in class and if you broke a rule she would make you write the\n" +
"rules out several times. The number varied depending on what\n" +
"rule you broke. Since I knew I would get in trouble, I would\n" +
"just go ahead and write out a few sets on the long school bus\n" +
"ride home so that if had to stay in during recess and write\n" +
"rules, five minutes later I could just tell the teacher I was\n" +
"done so I could go outside and play kickball.\n";
StringBufferInputStream sbis = new StringBufferInputStream(str);
int total_read = marktest(sbis);
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 4: Second mark/reset Test");
String str = "My first day of college was fun. A bunch of us\n" +
"got pretty drunk, then this guy named Rick Flake (I'm not\n" +
"making that name up) took a piss in the bed of a Physical\n" +
"Plant dept pickup truck. Later on we were walking across\n" +
"campus, saw a cop, and took off running for no reason.\n" +
"When we got back to the dorm we found an even drunker guy\n" +
"passed out in a shopping cart outside.\n";
ByteArrayInputStream sbis = new ByteArrayInputStream(str.getBytes());
int total_read = marktest(sbis);
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 BufferedInputStream");
} // main
} // class BufferedInputStreamTest