libjava/classpath/test/java.io/FileOutputStreamTest.java

   1 /*************************************************************************
   2 /* FileOutputStreamTest.java -- Test of FileOutputStream class
   3 /*
   4 /* Copyright (c) 1998 Free Software Foundation, Inc.
   5 /* Written by Aaron M. Renn (arenn@urbanophile.com)
   6 /*
   7 /* This program is free software; you can redistribute it and/or modify
   8 /* it under the terms of the GNU General Public License as published
   9 /* by the Free Software Foundation, either version 2 of the License, or
  10 /* (at your option) any later version.
  11 /*
  12 /* This program is distributed in the hope that it will be useful, but
  13 /* WITHOUT ANY WARRANTY; without even the implied warranty of
  14 /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 /* GNU General Public License for more details.
  16 /*
  17 /* You should have received a copy of the GNU General Public License
  18 /* along with this program; if not, write to the Free Software Foundation
  19 /* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  20 /*************************************************************************/
  21
  22 import java.io.*;
  23
  24 public class FileOutputStreamTest
  25 {
  26
  27 public static void
  28 main(String[] argv)
  29 {
  30   System.out.println("Starting test of FileOutputStream");
  31
  32   System.out.println("Test 1: File Write Test");
  33   try
  34     {
  35       String s1 = "Ok, what are some of the great flame wars that we have " +
  36          "had lately.  Let us see, there was emacs vs. xemacs, " +
  37          "KDE vs. Gnome, and Tcl vs. Guile";
  38
  39       String s2 = "Operating systems I have known include: solaris, sco, " +
  40          "hp-ux, linux, freebsd, winblows, os400, mvs, tpf, its, multics";
  41
  42       //File f = File.createTempFile("fostest", new File("/tmp"));
  43       File f = new File("/tmp/000000");
  44       FileOutputStream fos = new FileOutputStream(f.getPath());
  45
  46       fos.write(s1.getBytes(), 0, 32);
  47       fos.write(s1.getBytes(), 32, s1.getBytes().length - 32);
  48       fos.close();
  49
  50       fos = new FileOutputStream(f.getPath(), true);
  51       fos.write(s2.getBytes());
  52       fos.close();
  53
  54       if (f.length() != (s1.length() + s2.length()))
  55         throw new IOException("Incorrect number of bytes written");
  56
  57       f.delete();
  58
  59       System.out.println("PASSED: File Write Test");
  60     }
  61   catch(IOException e)
  62     {
  63       System.out.println("FAILED: File Write Test: " + e);
  64     }
  65
  66   System.out.println("Test 2: Permission Denied Test");
  67   try
  68     {
  69       FileOutputStream fos = new FileOutputStream("/etc/newtempfile");
  70       System.out.println("FAILED: Permission Denied Test");
  71     }
  72   catch (IOException e)
  73     {
  74       System.out.println("PASSED: Permission Denied Test: " + e);
  75     }
  76
  77   System.out.println("Finished test of FileOutputStream");
  78 }
  79
  80 } // class FileOutputStreamTest
  81