tests/file-test.c

   1 /* GLIB - Library of useful routines for C programming
   2  * Copyright (C) 1995-1997  Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GLib Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GLib Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GLib at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #include "config.h"
  28
  29 #undef G_DISABLE_ASSERT
  30 #undef G_LOG_DOMAIN
  31
  32 #ifdef GLIB_COMPILATION
  33 #undef GLIB_COMPILATION
  34 #endif
  35
  36 #include <stdio.h>
  37 #include <string.h>
  38
  39 #include <glib.h>
  40
  41 #ifdef HAVE_UNISTD_H
  42 #include <unistd.h>
  43 #endif
  44
  45 #ifdef G_OS_WIN32
  46 #include <io.h>                 /* For read(), write() etc */
  47 #endif
  48
  49 static void
  50 test_mkstemp (void)
  51 {
  52   char template[32];
  53   int fd;
  54   int i;
  55   const char hello[] = "Hello, World";
  56   const int hellolen = sizeof (hello) - 1;
  57   char chars[62];
  58
  59   strcpy (template, "foobar");
  60   fd = g_mkstemp (template);
  61   if (fd != -1)
  62     g_warning ("g_mkstemp works even if template doesn't end in XXXXXX");
  63   close (fd);
  64
  65   strcpy (template, "fooXXXXXX");
  66   fd = g_mkstemp (template);
  67   g_assert (fd != -1 && "g_mkstemp didn't work for template fooXXXXXX");
  68   i = write (fd, hello, hellolen);
  69   g_assert (i != -1 && "write() failed");
  70   g_assert (i == hellolen && "write() has written too few bytes");
  71
  72   lseek (fd, 0, 0);
  73   i = read (fd, chars, sizeof (chars));
  74   g_assert (i != -1 && "read() failed: %s");
  75   g_assert (i == hellolen && "read() has got wrong number of bytes");
  76
  77   chars[i] = 0;
  78   g_assert (strcmp (chars, hello) == 0 && "read() didn't get same string back");
  79
  80   close (fd);
  81   remove (template);
  82 }
  83
  84 static void
  85 test_readlink (void)
  86 {
  87 #ifdef HAVE_SYMLINK
  88   FILE *file;
  89   int result;
  90   char *filename = "file-test-data";
  91   char *link1 = "file-test-link1";
  92   char *link2 = "file-test-link2";
  93   char *link3 = "file-test-link3";
  94   char *data;
  95   GError *error;
  96
  97   file = fopen (filename, "w");
  98   g_assert (file != NULL && "fopen() failed");
  99   fclose (file);
 100
 101   result = symlink (filename, link1);
 102   g_assert (result == 0 && "symlink() failed");
 103   result = symlink (link1, link2);
 104   g_assert (result == 0 && "symlink() failed");
 105
 106   error = NULL;
 107   data = g_file_read_link (link1, &error);
 108   g_assert (data != NULL && "couldn't read link1");
 109   g_assert (strcmp (data, filename) == 0 && "link1 contains wrong data");
 110   g_free (data);
 111
 112   error = NULL;
 113   data = g_file_read_link (link2, &error);
 114   g_assert (data != NULL && "couldn't read link2");
 115   g_assert (strcmp (data, link1) == 0 && "link2 contains wrong data");
 116   g_free (data);
 117
 118   error = NULL;
 119   data = g_file_read_link (link3, &error);
 120   g_assert (data == NULL && "could read link3");
 121   g_assert (error != NULL && "error not set");
 122
 123   error = NULL;
 124   data = g_file_read_link (filename, &error);
 125   g_assert (data == NULL && "could read regular file as link");
 126   g_assert (error != NULL && "error not set");
 127
 128   remove (filename);
 129   remove (link1);
 130   remove (link2);
 131 #endif
 132 }
 133
 134 int
 135 main (int argc, char *argv[])
 136 {
 137   test_mkstemp ();
 138   test_readlink ();
 139
 140   return 0;
 141 }