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Diffstat (limited to 'pjlib/src/pjlib-test/exception.c')
| -rw-r--r-- | pjlib/src/pjlib-test/exception.c | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/pjlib/src/pjlib-test/exception.c b/pjlib/src/pjlib-test/exception.c new file mode 100644 index 0000000..4d4b1cd --- /dev/null +++ b/pjlib/src/pjlib-test/exception.c @@ -0,0 +1,282 @@ +/* $Id: exception.c 3553 2011-05-05 06:14:19Z nanang $ */ +/* + * 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 { + rc = 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 */ + + |