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 <string.h>
  37
  38 #include <glib.h>
  39
  40 #include <gstdio.h>
  41
  42 #ifdef HAVE_UNISTD_H
  43 #include <unistd.h>
  44 #endif
  45
  46 #include <fcntl.h>              /* For open() */
  47
  48 #ifdef G_OS_WIN32
  49 #include <io.h>                 /* For read(), write() etc */
  50 #endif
  51
  52 static void
  53 test_mkstemp (void)
  54 {
  55   char template[32];
  56   int fd;
  57   int i;
  58   const char hello[] = "Hello, World";
  59   const int hellolen = sizeof (hello) - 1;
  60   char chars[62];
  61
  62   strcpy (template, "foobar");
  63   fd = g_mkstemp (template);
  64   if (fd != -1)
  65     g_warning ("g_mkstemp works even if template doesn't contain XXXXXX");
  66   close (fd);
  67
  68   strcpy (template, "foobarXXX");
  69   fd = g_mkstemp (template);
  70   if (fd != -1)
  71     g_warning ("g_mkstemp works even if template contains less than six X");
  72   close (fd);
  73
  74   strcpy (template, "fooXXXXXX");
  75   fd = g_mkstemp (template);
  76   g_assert (fd != -1 && "g_mkstemp didn't work for template fooXXXXXX");
  77   i = write (fd, hello, hellolen);
  78   g_assert (i != -1 && "write() failed");
  79   g_assert (i == hellolen && "write() has written too few bytes");
  80
  81   lseek (fd, 0, 0);
  82   i = read (fd, chars, sizeof (chars));
  83   g_assert (i != -1 && "read() failed: %s");
  84   g_assert (i == hellolen && "read() has got wrong number of bytes");
  85
  86   chars[i] = 0;
  87   g_assert (strcmp (chars, hello) == 0 && "read() didn't get same string back");
  88
  89   close (fd);
  90   remove (template);
  91
  92   strcpy (template, "fooXXXXXX.pdf");
  93   fd = g_mkstemp (template);
  94   g_assert (fd != -1 && "g_mkstemp didn't work for template fooXXXXXX.pdf");
  95
  96   close (fd);
  97   remove (template);
  98 }
  99
 100 static void
 101 test_mkdtemp (void)
 102 {
 103   char template[32], *retval;
 104   int fd;
 105   int i;
 106
 107   strcpy (template, "foodir");
 108   retval = g_mkdtemp (template);
 109   if (retval != NULL)
 110     {
 111       g_warning ("g_mkdtemp works even if template doesn't contain XXXXXX");
 112       g_rmdir (retval);
 113     }
 114
 115   strcpy (template, "foodir");
 116   retval = g_mkdtemp (template);
 117   if (retval != NULL)
 118     {
 119       g_warning ("g_mkdtemp works even if template contains less than six X");
 120       g_rmdir (retval);
 121     }
 122
 123   strcpy (template, "fooXXXXXX");
 124   retval = g_mkdtemp (template);
 125   g_assert (retval != NULL && "g_mkdtemp didn't work for template fooXXXXXX");
 126   g_assert (retval == template && "g_mkdtemp allocated the resulting string?");
 127   g_assert (!g_file_test (template, G_FILE_TEST_IS_REGULAR));
 128   g_assert (g_file_test (template, G_FILE_TEST_IS_DIR));
 129
 130   strcat (template, "/abc");
 131   fd = g_open (template, O_WRONLY | O_CREAT, 0600);
 132   g_assert (fd != -1 && "couldn't open file in temporary directory");
 133   close (fd);
 134   g_assert (g_file_test (template, G_FILE_TEST_IS_REGULAR));
 135   i = g_unlink (template);
 136   g_assert (i != -1 && "couldn't unlink file in temporary directory");
 137
 138   template[9] = '\0';
 139   i = g_rmdir (template);
 140   g_assert (i != -1 && "couldn't remove temporary directory");
 141
 142   strcpy (template, "fooXXXXXX.dir");
 143   retval = g_mkdtemp (template);
 144   g_assert (retval != NULL && "g_mkdtemp didn't work for template fooXXXXXX.dir");
 145   g_assert (g_file_test (template, G_FILE_TEST_IS_DIR));
 146   g_rmdir (template);
 147 }
 148
 149 static void
 150 test_readlink (void)
 151 {
 152 #ifdef HAVE_SYMLINK
 153   FILE *file;
 154   int result;
 155   char *filename = "file-test-data";
 156   char *link1 = "file-test-link1";
 157   char *link2 = "file-test-link2";
 158   char *link3 = "file-test-link3";
 159   char *data;
 160   GError *error;
 161
 162   file = fopen (filename, "w");
 163   g_assert (file != NULL && "fopen() failed");
 164   fclose (file);
 165
 166   result = symlink (filename, link1);
 167   g_assert (result == 0 && "symlink() failed");
 168   result = symlink (link1, link2);
 169   g_assert (result == 0 && "symlink() failed");
 170
 171   error = NULL;
 172   data = g_file_read_link (link1, &error);
 173   g_assert (data != NULL && "couldn't read link1");
 174   g_assert (strcmp (data, filename) == 0 && "link1 contains wrong data");
 175   g_free (data);
 176
 177   error = NULL;
 178   data = g_file_read_link (link2, &error);
 179   g_assert (data != NULL && "couldn't read link2");
 180   g_assert (strcmp (data, link1) == 0 && "link2 contains wrong data");
 181   g_free (data);
 182
 183   error = NULL;
 184   data = g_file_read_link (link3, &error);
 185   g_assert (data == NULL && "could read link3");
 186   g_assert_error (error, G_FILE_ERROR, G_FILE_ERROR_NOENT);
 187
 188   error = NULL;
 189   data = g_file_read_link (filename, &error);
 190   g_assert (data == NULL && "could read regular file as link");
 191   g_assert_error (error, G_FILE_ERROR, G_FILE_ERROR_INVAL);
 192
 193   remove (filename);
 194   remove (link1);
 195   remove (link2);
 196 #endif
 197 }
 198
 199 static void
 200 test_get_contents (void)
 201 {
 202   const gchar *text = "abcdefghijklmnopqrstuvwxyz";
 203   const gchar *filename = "file-test-get-contents";
 204   gchar *contents;
 205   gsize len;
 206   FILE *f;
 207   GError *error = NULL;
 208
 209   f = g_fopen (filename, "w");
 210   fwrite (text, 1, strlen (text), f);
 211   fclose (f);
 212
 213   g_assert (g_file_test (filename, G_FILE_TEST_IS_REGULAR));
 214
 215   if (! g_file_get_contents (filename, &contents, &len, &error))
 216     g_error ("g_file_get_contents() failed: %s", error->message);
 217
 218   g_assert (strcmp (text, contents) == 0 && "content mismatch");
 219
 220   g_free (contents);
 221 }
 222
 223 int
 224 main (int argc, char *argv[])
 225 {
 226   test_mkstemp ();
 227   test_mkdtemp ();
 228   test_readlink ();
 229   test_get_contents ();
 230
 231   return 0;
 232 }