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 2.1 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, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 /*
  19  * Modified by the GLib Team and others 1997-2000.  See the AUTHORS
  20  * file for a list of people on the GLib Team.  See the ChangeLog
  21  * files for a list of changes.  These files are distributed with
  22  * GLib at ftp://ftp.gtk.org/pub/gtk/.
  23  */
  24
  25 #undef G_DISABLE_ASSERT
  26 #undef G_LOG_DOMAIN
  27
  28 #ifdef GLIB_COMPILATION
  29 #undef GLIB_COMPILATION
  30 #endif
  31
  32 #include <string.h>
  33
  34 #include <glib.h>
  35
  36 #include <gstdio.h>
  37
  38 #include <fcntl.h>              /* For open() */
  39
  40 #ifdef G_OS_UNIX
  41 #include <unistd.h>
  42 #endif
  43 #ifdef G_OS_WIN32
  44 #include <io.h>                 /* For read(), write() etc */
  45 #endif
  46
  47 static void
  48 test_mkstemp (void)
  49 {
  50   char template[32];
  51   int fd;
  52   int i;
  53   const char hello[] = "Hello, World";
  54   const int hellolen = sizeof (hello) - 1;
  55   char chars[62];
  56
  57   strcpy (template, "foobar");
  58   fd = g_mkstemp (template);
  59   if (fd != -1)
  60     {
  61       g_warning ("g_mkstemp works even if template doesn't contain XXXXXX");
  62       close (fd);
  63     }
  64
  65   strcpy (template, "foobarXXX");
  66   fd = g_mkstemp (template);
  67   if (fd != -1)
  68     {
  69       g_warning ("g_mkstemp works even if template contains less than six X");
  70       close (fd);
  71     }
  72
  73   strcpy (template, "fooXXXXXX");
  74   fd = g_mkstemp (template);
  75   g_assert (fd != -1 && "g_mkstemp didn't work for template fooXXXXXX");
  76   i = write (fd, hello, hellolen);
  77   g_assert (i != -1 && "write() failed");
  78   g_assert (i == hellolen && "write() has written too few bytes");
  79
  80   lseek (fd, 0, 0);
  81   i = read (fd, chars, sizeof (chars));
  82   g_assert (i != -1 && "read() failed: %s");
  83   g_assert (i == hellolen && "read() has got wrong number of bytes");
  84
  85   chars[i] = 0;
  86   g_assert (strcmp (chars, hello) == 0 && "read() didn't get same string back");
  87
  88   close (fd);
  89   remove (template);
  90
  91   strcpy (template, "fooXXXXXX.pdf");
  92   fd = g_mkstemp (template);
  93   g_assert (fd != -1 && "g_mkstemp didn't work for template fooXXXXXX.pdf");
  94
  95   close (fd);
  96   remove (template);
  97 }
  98
  99 static void
 100 test_mkdtemp (void)
 101 {
 102   char template[32], *retval;
 103   int fd;
 104   int i;
 105
 106   strcpy (template, "foodir");
 107   retval = g_mkdtemp (template);
 108   if (retval != NULL)
 109     {
 110       g_warning ("g_mkdtemp works even if template doesn't contain XXXXXX");
 111       g_rmdir (retval);
 112     }
 113
 114   strcpy (template, "foodir");
 115   retval = g_mkdtemp (template);
 116   if (retval != NULL)
 117     {
 118       g_warning ("g_mkdtemp works even if template contains less than six X");
 119       g_rmdir (retval);
 120     }
 121
 122   strcpy (template, "fooXXXXXX");
 123   retval = g_mkdtemp (template);
 124   g_assert (retval != NULL && "g_mkdtemp didn't work for template fooXXXXXX");
 125   g_assert (retval == template && "g_mkdtemp allocated the resulting string?");
 126   g_assert (!g_file_test (template, G_FILE_TEST_IS_REGULAR));
 127   g_assert (g_file_test (template, G_FILE_TEST_IS_DIR));
 128
 129   strcat (template, "/abc");
 130   fd = g_open (template, O_WRONLY | O_CREAT, 0600);
 131   g_assert (fd != -1 && "couldn't open file in temporary directory");
 132   close (fd);
 133   g_assert (g_file_test (template, G_FILE_TEST_IS_REGULAR));
 134   i = g_unlink (template);
 135   g_assert (i != -1 && "couldn't unlink file in temporary directory");
 136
 137   template[9] = '\0';
 138   i = g_rmdir (template);
 139   g_assert (i != -1 && "couldn't remove temporary directory");
 140
 141   strcpy (template, "fooXXXXXX.dir");
 142   retval = g_mkdtemp (template);
 143   g_assert (retval != NULL && "g_mkdtemp didn't work for template fooXXXXXX.dir");
 144   g_assert (g_file_test (template, G_FILE_TEST_IS_DIR));
 145   g_rmdir (template);
 146 }
 147
 148 static void
 149 test_readlink (void)
 150 {
 151 #ifdef HAVE_SYMLINK
 152   FILE *file;
 153   int result;
 154   char *filename = "file-test-data";
 155   char *link1 = "file-test-link1";
 156   char *link2 = "file-test-link2";
 157   char *link3 = "file-test-link3";
 158   char *data;
 159   GError *error;
 160
 161   file = fopen (filename, "w");
 162   g_assert (file != NULL && "fopen() failed");
 163   fclose (file);
 164
 165   result = symlink (filename, link1);
 166   g_assert (result == 0 && "symlink() failed");
 167   result = symlink (link1, link2);
 168   g_assert (result == 0 && "symlink() failed");
 169
 170   error = NULL;
 171   data = g_file_read_link (link1, &error);
 172   g_assert (data != NULL && "couldn't read link1");
 173   g_assert (strcmp (data, filename) == 0 && "link1 contains wrong data");
 174   g_free (data);
 175
 176   error = NULL;
 177   data = g_file_read_link (link2, &error);
 178   g_assert (data != NULL && "couldn't read link2");
 179   g_assert (strcmp (data, link1) == 0 && "link2 contains wrong data");
 180   g_free (data);
 181
 182   error = NULL;
 183   data = g_file_read_link (link3, &error);
 184   g_assert (data == NULL && "could read link3");
 185   g_assert_error (error, G_FILE_ERROR, G_FILE_ERROR_NOENT);
 186   g_error_free (error);
 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   g_error_free (error);
 193
 194   remove (filename);
 195   remove (link1);
 196   remove (link2);
 197 #endif
 198 }
 199
 200 static void
 201 test_get_contents (void)
 202 {
 203   const gchar *text = "abcdefghijklmnopqrstuvwxyz";
 204   const gchar *filename = "file-test-get-contents";
 205   gchar *contents;
 206   gsize len;
 207   FILE *f;
 208   GError *error = NULL;
 209
 210   f = g_fopen (filename, "w");
 211   fwrite (text, 1, strlen (text), f);
 212   fclose (f);
 213
 214   g_assert (g_file_test (filename, G_FILE_TEST_IS_REGULAR));
 215
 216   if (! g_file_get_contents (filename, &contents, &len, &error))
 217     g_error ("g_file_get_contents() failed: %s", error->message);
 218
 219   g_assert (strcmp (text, contents) == 0 && "content mismatch");
 220
 221   g_free (contents);
 222 }
 223
 224 int
 225 main (int argc, char *argv[])
 226 {
 227   test_mkstemp ();
 228   test_mkdtemp ();
 229   test_readlink ();
 230   test_get_contents ();
 231
 232   return 0;
 233 }