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/* $Id$ */
/*
* Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
* Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "test.h"
/**
* \page page_pjlib_exception_test Test: Exception Handling
*
* This file provides implementation of \b exception_test(). It tests the
* functionality of the exception handling API.
*
* @note This test use static ID not acquired through proper registration.
* This is not recommended, since it may create ID collissions.
*
* \section exception_test_sec Scope of the Test
*
* Some scenarios tested:
* - no exception situation
* - basic TRY/CATCH
* - multiple exception handlers
* - default handlers
*
*
* This file is <b>pjlib-test/exception.c</b>
*
* \include pjlib-test/exception.c
*/
#if INCLUDE_EXCEPTION_TEST
#include <pjlib.h>
#define ID_1 1
#define ID_2 2
static int throw_id_1(void)
{
PJ_THROW( ID_1 );
PJ_UNREACHED(return -1;)
}
static int throw_id_2(void)
{
PJ_THROW( ID_2 );
PJ_UNREACHED(return -1;)
}
static int try_catch_test(void)
{
PJ_USE_EXCEPTION;
int rc = -200;
PJ_TRY {
PJ_THROW(ID_1);
}
PJ_CATCH_ANY {
rc = 0;
}
PJ_END;
return rc;
}
static int throw_in_handler(void)
{
PJ_USE_EXCEPTION;
int rc = 0;
PJ_TRY {
PJ_THROW(ID_1);
}
PJ_CATCH_ANY {
if (PJ_GET_EXCEPTION() != ID_1)
rc = -300;
else
PJ_THROW(ID_2);
}
PJ_END;
return rc;
}
static int return_in_handler(void)
{
PJ_USE_EXCEPTION;
PJ_TRY {
PJ_THROW(ID_1);
}
PJ_CATCH_ANY {
return 0;
}
PJ_END;
return -400;
}
static int test(void)
{
int rc = 0;
PJ_USE_EXCEPTION;
/*
* No exception situation.
*/
PJ_TRY {
PJ_UNUSED_ARG(rc);
}
PJ_CATCH_ANY {
rc = -3;
}
PJ_END;
if (rc != 0)
return rc;
/*
* Basic TRY/CATCH
*/
PJ_TRY {
rc = throw_id_1();
// should not reach here.
rc = -10;
}
PJ_CATCH_ANY {
int id = PJ_GET_EXCEPTION();
if (id != ID_1) {
PJ_LOG(3,("", "...error: got unexpected exception %d (%s)",
id, pj_exception_id_name(id)));
if (!rc) rc = -20;
}
}
PJ_END;
if (rc != 0)
return rc;
/*
* Multiple exceptions handlers
*/
PJ_TRY {
rc = throw_id_2();
// should not reach here.
rc = -25;
}
PJ_CATCH_ANY {
switch (PJ_GET_EXCEPTION()) {
case ID_1:
if (!rc) rc = -30; break;
case ID_2:
if (!rc) rc = 0; break;
default:
if (!rc) rc = -40;
break;
}
}
PJ_END;
if (rc != 0)
return rc;
/*
* Test default handler.
*/
PJ_TRY {
rc = throw_id_1();
// should not reach here
rc = -50;
}
PJ_CATCH_ANY {
switch (PJ_GET_EXCEPTION()) {
case ID_1:
if (!rc) rc = 0;
break;
default:
if (!rc) rc = -60;
break;
}
}
PJ_END;
if (rc != 0)
return rc;
/*
* Nested handlers
*/
PJ_TRY {
rc = try_catch_test();
}
PJ_CATCH_ANY {
rc = -70;
}
PJ_END;
if (rc != 0)
return rc;
/*
* Throwing exception inside handler
*/
rc = -80;
PJ_TRY {
int rc2;
rc2 = throw_in_handler();
if (rc2)
rc = rc2;
}
PJ_CATCH_ANY {
if (PJ_GET_EXCEPTION() == ID_2) {
rc = 0;
} else {
rc = -90;
}
}
PJ_END;
if (rc != 0)
return rc;
/*
* Return from handler. Returning from the function inside a handler
* should be okay (though returning from the function inside the
* PJ_TRY block IS NOT OKAY!!). We want to test to see if handler
* is cleaned up properly, but not sure how to do this.
*/
PJ_TRY {
int rc2;
rc2 = return_in_handler();
if (rc2)
rc = rc2;
}
PJ_CATCH_ANY {
rc = -100;
}
PJ_END;
return 0;
}
int exception_test(void)
{
int i, rc;
enum { LOOP = 10 };
for (i=0; i<LOOP; ++i) {
if ((rc=test()) != 0) {
PJ_LOG(3,("", "...failed at i=%d (rc=%d)", i, rc));
return rc;
}
}
return 0;
}
#else
/* To prevent warning about "translation unit is empty"
* when this test is disabled.
*/
int dummy_exception_test;
#endif /* INCLUDE_EXCEPTION_TEST */
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