glib/tests/env-test.c

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/* GLIB - Library of useful routines for C programming
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GLib Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GLib Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GLib at ftp://ftp.gtk.org/pub/gtk/.
*/
#undef G_DISABLE_ASSERT
#undef G_LOG_DOMAIN
#ifdef GLIB_COMPILATION
#undef GLIB_COMPILATION
#endif
#include <stdio.h>
#include <stdlib.h>
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#include <string.h>
#include <glib.h>
int
main (int argc, char *argv[])
{
gboolean result;
const gchar *data;
gchar *variable = "TEST_G_SETENV";
gchar *value1 = "works";
gchar *value2 = "again";
data = g_getenv (variable);
g_assert (data == NULL && "TEST_G_SETENV already set");
result = g_setenv (variable, value1, TRUE);
g_assert (result && "g_setenv() failed");
data = g_getenv (variable);
g_assert (data != NULL && "g_getenv() returns NULL");
g_assert (strcmp (data, value1) == 0 && "g_getenv() returns wrong value");
result = g_setenv (variable, value2, FALSE);
g_assert (result && "g_setenv() failed");
data = g_getenv (variable);
g_assert (data != NULL && "g_getenv() returns NULL");
g_assert (strcmp (data, value2) != 0 && "g_setenv() always overwrites");
g_assert (strcmp (data, value1) == 0 && "g_getenv() returns wrong value");
result = g_setenv (variable, value2, TRUE);
g_assert (result && "g_setenv() failed");
data = g_getenv (variable);
g_assert (data != NULL && "g_getenv() returns NULL");
g_assert (strcmp (data, value1) != 0 && "g_setenv() doesn't overwrite");
g_assert (strcmp (data, value2) == 0 && "g_getenv() returns wrong value");
g_unsetenv (variable);
data = g_getenv (variable);
g_assert (data == NULL && "g_unsetenv() doesn't work");
#if 0
/* We can't test this, because it's an illegal argument that
* we g_return_if_fail for.
*/
result = g_setenv ("foo=bar", "baz", TRUE);
g_assert (!result && "g_setenv() accepts '=' in names");
#endif
result = g_setenv ("foo", "bar=baz", TRUE);
g_assert (result && "g_setenv() doesn't accept '=' in values");
#if 0
/* While glibc supports '=' in names in getenv(), SUS doesn't say anything about it,
* and Solaris doesn't support it.
*/
data = g_getenv ("foo=bar");
g_assert (strcmp (data, "baz") == 0 && "g_getenv() doesn't support '=' in names");
#endif
data = g_getenv ("foo");
g_assert (strcmp (data, "bar=baz") == 0 && "g_getenv() doesn't support '=' in values");
#if 0
/* We can't test this, because it's an illegal argument that
* we g_return_if_fail for. Plus how would we check for failure,
* since we can't set the value...
*/
g_unsetenv ("foo=bar");
#endif
g_unsetenv ("foo");
data = g_getenv ("foo");
g_assert (data == NULL && "g_unsetenv() doesn't support '=' in values");
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return 0;
}