ossp-pkg/ex/ex_test.c
/*
** OSSP ex - Exception Handling
** Copyright (c) 2002-2007 Ralf S. Engelschall <rse@engelschall.com>
** Copyright (c) 2002-2007 The OSSP Project <http://www.ossp.org/>
**
** This file is part of OSSP ex, an exception handling library
** which can be found at http://www.ossp.org/pkg/lib/ex/.
**
** Permission to use, copy, modify, and distribute this software for
** any purpose with or without fee is hereby granted, provided that
** the above copyright notice and this permission notice appear in all
** copies.
**
** THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
** USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
** OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
** SUCH DAMAGE.
**
** ex_test.c: exception handling test suite
*/
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "ts.h"
#include "ex.h"
TS_TEST(test_controlflow)
{
ex_t ex;
volatile int n;
ts_test_check(TS_CTX, "basic nested control flow");
n = 1;
ex_try {
if (n != 1)
ts_test_fail(TS_CTX, "M1: n=%d (!= 1)", n);
n++;
ex_try {
if (n != 2)
ts_test_fail(TS_CTX, "M2: n=%d (!= 2)", n);
n++;
ex_throw(0, 0, 0);
}
ex_catch (ex) {
if (n != 3)
ts_test_fail(TS_CTX, "M3: n=%d (!= 1)", n);
n++;
ex_rethrow;
}
ts_test_fail(TS_CTX, "MX: n=%d (expected: not reached)", n);
}
ex_catch (ex) {
if (n != 4)
ts_test_fail(TS_CTX, "M4: n=%d (!= 4)", n);
n++;
}
if (n != 5)
ts_test_fail(TS_CTX, "M5: n=%d (!= 5)", n);
}
TS_TEST(test_value)
{
ex_t ex;
ex_try {
ex_throw(1, 2, 3);
}
ex_catch (ex) {
ts_test_check(TS_CTX, "exception value passing");
if (ex.ex_class != (void *)1)
ts_test_fail(TS_CTX, "ex_class=0x%lx (!= 1)", (long)ex.ex_class);
if (ex.ex_object != (void *)2)
ts_test_fail(TS_CTX, "ex_object=0x%lx (!= 2)", (long)ex.ex_object);
if (ex.ex_value != (void *)3)
ts_test_fail(TS_CTX, "ex_value=0x%lx (!= 3)", (long)ex.ex_value);
}
}
TS_TEST(test_variables)
{
ex_t ex;
int r1, r2;
volatile int v1, v2;
r1 = r2 = v1 = v2 = 1234;
ex_try {
r2 = 5678;
v2 = 5678;
ex_throw(0, 0, 0);
}
ex_catch (ex) {
ts_test_check(TS_CTX, "variable preservation");
if (r1 != 1234)
ts_test_fail(TS_CTX, "r1=%d (!= 1234)", r1);
if (v1 != 1234)
ts_test_fail(TS_CTX, "v1=%d (!= 1234)", v1);
/* r2 is allowed to be destroyed because not volatile */
if (v2 != 5678)
ts_test_fail(TS_CTX, "v2=%d (!= 5678)", v2);
}
}
TS_TEST(test_defer)
{
ex_t ex;
volatile int i1 = 0;
volatile int i2 = 0;
volatile int i3 = 0;
ts_test_check(TS_CTX, "exception deferring");
if (ex_deferring)
ts_test_fail(TS_CTX, "unexpected deferring scope");
ex_try {
ex_defer {
if (!ex_deferring)
ts_test_fail(TS_CTX, "unexpected non-deferring scope");
ex_defer {
i1 = 1;
ex_throw(0, 0, 4711);
i2 = 2;
ex_throw(0, 0, 0);
i3 = 3;
ex_throw(0, 0, 0);
}
ex_throw(0, 0, 0);
}
ts_test_fail(TS_CTX, "unexpected not occurred deferred throwing");
}
ex_catch (ex) {
if ((long)ex.ex_value != (long)4711)
ts_test_fail(TS_CTX, "caught exception with value %d, expected 4711", (long)ex.ex_value);
}
if (i1 != 1)
ts_test_fail(TS_CTX, "v.i1 not set (expected 1, got %d)", i1);
if (i2 != 2)
ts_test_fail(TS_CTX, "v.i2 not set (expected 2, got %d)", i2);
if (i3 != 3)
ts_test_fail(TS_CTX, "v.i3 not set (expected 3, got %d)", i3);
}
TS_TEST(test_shield)
{
ex_t ex;
ts_test_check(TS_CTX, "exception shielding");
if (ex_shielding)
ts_test_fail(TS_CTX, "unexpected shielding scope");
if (ex_catching)
ts_test_fail(TS_CTX, "unexpected catching scope");
ex_try {
ex_shield {
if (!ex_shielding)
ts_test_fail(TS_CTX, "unexpected non-shielding scope");
ex_throw(0, 0, 0);
}
if (ex_shielding)
ts_test_fail(TS_CTX, "unexpected shielding scope");
if (!ex_catching)
ts_test_fail(TS_CTX, "unexpected non-catching scope");
}
ex_catch (ex) {
ts_test_fail(TS_CTX, "unexpected exception catched");
if (ex_catching)
ts_test_fail(TS_CTX, "unexpected catching scope");
}
if (ex_catching)
ts_test_fail(TS_CTX, "unexpected catching scope");
}
TS_TEST(test_cleanup)
{
ex_t ex;
volatile int v1;
int c;
ts_test_check(TS_CTX, "cleanup handling");
v1 = 1234;
c = 0;
ex_try {
v1 = 5678;
ex_throw(1, 2, 3);
}
ex_cleanup {
if (v1 != 5678)
ts_test_fail(TS_CTX, "v1 = %d (!= 5678)", v1);
c = 1;
}
ex_catch (ex) {
if (v1 != 5678)
ts_test_fail(TS_CTX, "v1 = %d (!= 5678)", v1);
if (!(ex.ex_class == (void *)1 && ex.ex_object == (void *)2 && ex.ex_value == (void *)3))
ts_test_fail(TS_CTX, "unexpected exception contents");
}
if (!c)
ts_test_fail(TS_CTX, "ex_cleanup not executed");
}
int main(int argc, char *argv[])
{
ts_suite_t *ts;
int n;
ts = ts_suite_new("OSSP ex (Exception Handling)");
ts_suite_test(ts, test_controlflow, "basic nested control flow");
ts_suite_test(ts, test_value, "exception value passing");
ts_suite_test(ts, test_variables, "variable value preservation");
ts_suite_test(ts, test_defer, "exception deferring");
ts_suite_test(ts, test_shield, "exception shielding");
ts_suite_test(ts, test_cleanup, "cleanup handling");
n = ts_suite_run(ts);
ts_suite_free(ts);
return n;
}
