libjava/classpath/test/java.io/FileWriterTest.java

   1 /*************************************************************************
   2 /* FileWriterTest.java -- Test of FileWriter and OutputStreamWriter classes
   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 FileWriterTest
  25 {
  26
  27 public static void
  28 main(String[] argv)
  29 {
  30   System.out.println("Starting test of FileWriter and OutputStreamWriter");
  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/000001");
  44       FileWriter fw = new FileWriter(f.getPath());
  45
  46       char buf[] = new char[s1.length()];
  47       s1.getChars(0, s1.length(), buf, 0);
  48       fw.write(buf, 0, 32);
  49       fw.write(buf, 32, s1.getBytes().length - 32);
  50       fw.close();
  51
  52       fw = new FileWriter(f.getPath(), true);
  53       buf = new char[s2.length()];
  54       s2.getChars(0, s2.length(), buf, 0);
  55       fw.write(buf);
  56       fw.close();
  57
  58       if (f.length() != (s1.length() + s2.length()))
  59         throw new IOException("Incorrect number of chars written");
  60
  61       f.delete();
  62
  63       System.out.println("PASSED: File Write Test");
  64     }
  65   catch(IOException e)
  66     {
  67       System.out.println("FAILED: File Write Test: " + e);
  68     }
  69
  70   System.out.println("Test 2: Permission Denied Test");
  71   try
  72     {
  73       FileWriter fw = new FileWriter("/etc/newtempfile");
  74       System.out.println("FAILED: Permission Denied Test");
  75     }
  76   catch (IOException e)
  77     {
  78       System.out.println("PASSED: Permission Denied Test: " + e);
  79     }
  80
  81   System.out.println("Finished test of FileWriter");
  82 }
  83
  84 } // class FileWriter
  85