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 #ifdef G_OS_WIN32
  47 #include <io.h>                 /* For read(), write() etc */
  48 #endif
  49
  50 static void
  51 test_mkstemp (void)
  52 {
  53   char template[32];
  54   int fd;
  55   int i;
  56   const char hello[] = "Hello, World";
  57   const int hellolen = sizeof (hello) - 1;
  58   char chars[62];
  59
  60   strcpy (template, "foobar");
  61   fd = g_mkstemp (template);
  62   if (fd != -1)
  63     g_warning ("g_mkstemp works even if template doesn't contain XXXXXX");
  64   close (fd);
  65
  66   strcpy (template, "foobarXXX");
  67   fd = g_mkstemp (template);
  68   if (fd != -1)
  69     g_warning ("g_mkstemp works even if template contains less than six X");
  70   close (fd);
  71
  72   strcpy (template, "fooXXXXXX");
  73   fd = g_mkstemp (template);
  74   g_assert (fd != -1 && "g_mkstemp didn't work for template fooXXXXXX");
  75   i = write (fd, hello, hellolen);
  76   g_assert (i != -1 && "write() failed");
  77   g_assert (i == hellolen && "write() has written too few bytes");
  78
  79   lseek (fd, 0, 0);
  80   i = read (fd, chars, sizeof (chars));
  81   g_assert (i != -1 && "read() failed: %s");
  82   g_assert (i == hellolen && "read() has got wrong number of bytes");
  83
  84   chars[i] = 0;
  85   g_assert (strcmp (chars, hello) == 0 && "read() didn't get same string back");
  86
  87   close (fd);
  88   remove (template);
  89
  90   strcpy (template, "fooXXXXXX.pdf");
  91   fd = g_mkstemp (template);
  92   g_assert (fd != -1 && "g_mkstemp didn't work for template fooXXXXXX.pdf");
  93
  94   close (fd);
  95   remove (template);
  96 }
  97
  98 static void
  99 test_readlink (void)
 100 {
 101 #ifdef HAVE_SYMLINK
 102   FILE *file;
 103   int result;
 104   char *filename = "file-test-data";
 105   char *link1 = "file-test-link1";
 106   char *link2 = "file-test-link2";
 107   char *link3 = "file-test-link3";
 108   char *data;
 109   GError *error;
 110
 111   file = fopen (filename, "w");
 112   g_assert (file != NULL && "fopen() failed");
 113   fclose (file);
 114
 115   result = symlink (filename, link1);
 116   g_assert (result == 0 && "symlink() failed");
 117   result = symlink (link1, link2);
 118   g_assert (result == 0 && "symlink() failed");
 119
 120   error = NULL;
 121   data = g_file_read_link (link1, &error);
 122   g_assert (data != NULL && "couldn't read link1");
 123   g_assert (strcmp (data, filename) == 0 && "link1 contains wrong data");
 124   g_free (data);
 125
 126   error = NULL;
 127   data = g_file_read_link (link2, &error);
 128   g_assert (data != NULL && "couldn't read link2");
 129   g_assert (strcmp (data, link1) == 0 && "link2 contains wrong data");
 130   g_free (data);
 131
 132   error = NULL;
 133   data = g_file_read_link (link3, &error);
 134   g_assert (data == NULL && "could read link3");
 135   g_assert (error != NULL && "error not set");
 136
 137   error = NULL;
 138   data = g_file_read_link (filename, &error);
 139   g_assert (data == NULL && "could read regular file as link");
 140   g_assert (error != NULL && "error not set");
 141
 142   remove (filename);
 143   remove (link1);
 144   remove (link2);
 145 #endif
 146 }
 147
 148 static void
 149 test_get_contents (void)
 150 {
 151   const gchar *text = "abcdefghijklmnopqrstuvwxyz";
 152   const gchar *filename = "file-test-get-contents";
 153   gchar *contents;
 154   gsize len;
 155   FILE *f;
 156   GError *error = NULL;
 157
 158   f = g_fopen (filename, "w");
 159   fwrite (text, 1, strlen (text), f);
 160   fclose (f);
 161
 162   g_assert (g_file_test (filename, G_FILE_TEST_IS_REGULAR));
 163
 164   if (! g_file_get_contents (filename, &contents, &len, &error))
 165     g_error ("g_file_get_contents() failed: %s", error->message);
 166
 167   g_assert (strcmp (text, contents) == 0 && "content mismatch");
 168
 169   g_free (contents);
 170 }
 171
 172 int
 173 main (int argc, char *argv[])
 174 {
 175   test_mkstemp ();
 176   test_readlink ();
 177   test_get_contents ();
 178
 179   return 0;
 180 }