tests/env-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 #undef G_DISABLE_ASSERT
  28 #undef G_LOG_DOMAIN
  29
  30 #ifdef GLIB_COMPILATION
  31 #undef GLIB_COMPILATION
  32 #endif
  33
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37
  38 #include <glib.h>
  39
  40 int
  41 main (int argc, char *argv[])
  42 {
  43   gboolean result;
  44   const gchar *data;
  45   gchar *variable = "TEST_G_SETENV";
  46   gchar *value1 = "works";
  47   gchar *value2 = "again";
  48
  49   data = g_getenv (variable);
  50   g_assert (data == NULL && "TEST_G_SETENV already set");
  51
  52   result = g_setenv (variable, value1, TRUE);
  53   g_assert (result && "g_setenv() failed");
  54
  55   data = g_getenv (variable);
  56   g_assert (data != NULL && "g_getenv() returns NULL");
  57   g_assert (strcmp (data, value1) == 0 && "g_getenv() returns wrong value");
  58
  59   result = g_setenv (variable, value2, FALSE);
  60   g_assert (result && "g_setenv() failed");
  61
  62   data = g_getenv (variable);
  63   g_assert (data != NULL && "g_getenv() returns NULL");
  64   g_assert (strcmp (data, value2) != 0 && "g_setenv() always overwrites");
  65   g_assert (strcmp (data, value1) == 0 && "g_getenv() returns wrong value");
  66
  67   result = g_setenv (variable, value2, TRUE);
  68   g_assert (result && "g_setenv() failed");
  69
  70   data = g_getenv (variable);
  71   g_assert (data != NULL && "g_getenv() returns NULL");
  72   g_assert (strcmp (data, value1) != 0 && "g_setenv() doesn't overwrite");
  73   g_assert (strcmp (data, value2) == 0 && "g_getenv() returns wrong value");
  74
  75   g_unsetenv (variable);
  76   data = g_getenv (variable);
  77   g_assert (data == NULL && "g_unsetenv() doesn't work");
  78
  79 #if 0
  80   /* We can't test this, because it's an illegal argument that
  81    * we g_return_if_fail for.
  82    */
  83   result = g_setenv ("foo=bar", "baz", TRUE);
  84   g_assert (!result && "g_setenv() accepts '=' in names");
  85 #endif
  86
  87   result = g_setenv ("foo", "bar=baz", TRUE);
  88   g_assert (result && "g_setenv() doesn't accept '=' in values");
  89 #if 0
  90   /* While glibc supports '=' in names in getenv(), SUS doesn't say anything about it,
  91    * and Solaris doesn't support it.
  92    */
  93   data = g_getenv ("foo=bar");
  94   g_assert (strcmp (data, "baz") == 0 && "g_getenv() doesn't support '=' in names");
  95 #endif
  96   data = g_getenv ("foo");
  97   g_assert (strcmp (data, "bar=baz") == 0 && "g_getenv() doesn't support '=' in values");
  98
  99 #if 0
 100   /* We can't test this, because it's an illegal argument that
 101    * we g_return_if_fail for. Plus how would we check for failure,
 102    * since we can't set the value...
 103    */
 104   g_unsetenv ("foo=bar");
 105 #endif
 106   g_unsetenv ("foo");
 107   data = g_getenv ("foo");
 108   g_assert (data == NULL && "g_unsetenv() doesn't support '=' in values");
 109
 110   return 0;
 111 }