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