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 #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 <stdlib.h>
  38 #include <string.h>
  39
  40 #include <glib.h>
  41
  42 #ifdef HAVE_UNISTD_H
  43 #include <unistd.h>
  44 #endif
  45
  46 int
  47 main (int argc, char *argv[])
  48 {
  49   gboolean result;
  50   const gchar *data;
  51   gchar *variable = "TEST_G_SETENV";
  52   gchar *value1 = "works";
  53   gchar *value2 = "again";
  54
  55   data = g_getenv (variable);
  56   g_assert (data == NULL && "TEST_G_SETENV already set");
  57
  58   result = g_setenv (variable, value1, TRUE);
  59   g_assert (result && "g_setenv() failed");
  60
  61   data = g_getenv (variable);
  62   g_assert (data != NULL && "g_getenv() returns NULL");
  63   g_assert (strcmp (data, value1) == 0 && "g_getenv() returns wrong value");
  64
  65   result = g_setenv (variable, value2, FALSE);
  66   g_assert (result && "g_setenv() failed");
  67
  68   data = g_getenv (variable);
  69   g_assert (data != NULL && "g_getenv() returns NULL");
  70   g_assert (strcmp (data, value2) != 0 && "g_setenv() always overwrites");
  71   g_assert (strcmp (data, value1) == 0 && "g_getenv() returns wrong value");
  72
  73   result = g_setenv (variable, value2, TRUE);
  74   g_assert (result && "g_setenv() failed");
  75
  76   data = g_getenv (variable);
  77   g_assert (data != NULL && "g_getenv() returns NULL");
  78   g_assert (strcmp (data, value1) != 0 && "g_setenv() doesn't overwrite");
  79   g_assert (strcmp (data, value2) == 0 && "g_getenv() returns wrong value");
  80
  81   g_unsetenv (variable);
  82   data = g_getenv (variable);
  83   g_assert (data == NULL && "g_unsetenv() doesn't work");
  84
  85 #if 0
  86   /* We can't test this, because it's an illegal argument that
  87    * we g_return_if_fail for.
  88    */
  89   result = g_setenv ("foo=bar", "baz", TRUE);
  90   g_assert (!result && "g_setenv() accepts '=' in names");
  91 #endif
  92
  93   result = g_setenv ("foo", "bar=baz", TRUE);
  94   g_assert (result && "g_setenv() doesn't accept '=' in values");
  95 #if 0
  96   /* While glibc supports '=' in names in getenv(), SUS doesn't say anything about it,
  97    * and Solaris doesn't support it.
  98    */
  99   data = g_getenv ("foo=bar");
 100   g_assert (strcmp (data, "baz") == 0 && "g_getenv() doesn't support '=' in names");
 101 #endif
 102   data = g_getenv ("foo");
 103   g_assert (strcmp (data, "bar=baz") == 0 && "g_getenv() doesn't support '=' in values");
 104
 105 #if 0
 106   /* We can't test this, because it's an illegal argument that
 107    * we g_return_if_fail for. Plus how would we check for failure,
 108    * since we can't set the value...
 109    */
 110   g_unsetenv ("foo=bar");
 111 #endif
 112   g_unsetenv ("foo");
 113   data = g_getenv ("foo");
 114   g_assert (data == NULL && "g_unsetenv() doesn't support '=' in values");
 115
 116   return 0;
 117 }