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/*
* libdpkg - Debian packaging suite library routines
* t-ehandle.c - test error handling implementation
*
* Copyright © 2016 Guillem Jover <guillem@debian.org>
*
* This 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 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, see <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <compat.h>
#include <stdbool.h>
#include <fcntl.h>
#include <unistd.h>
#include <dpkg/test.h>
#include <dpkg/ehandle.h>
static jmp_buf global_handler_jump;
static void
printer_empty(const char *msg, const void *data)
{
}
static void
handler_func(void)
{
longjmp(global_handler_jump, 1);
}
static void
test_error_handler_func(void)
{
bool pass;
if (setjmp(global_handler_jump)) {
pass = true;
pop_error_context(ehflag_normaltidy);
} else {
pass = false;
push_error_context_func(handler_func, printer_empty, "test func");
ohshit("test func error");
test_bail("ohshit() is not supposed to return");
}
test_pass(pass);
}
static void
test_error_handler_jump(void)
{
jmp_buf handler_jump;
bool pass;
if (setjmp(handler_jump)) {
pass = true;
pop_error_context(ehflag_normaltidy);
} else {
pass = false;
push_error_context_jump(&handler_jump, printer_empty, "test jump");
ohshit("test jump error");
test_bail("ohshit() is not supposed to return");
}
test_pass(pass);
}
static void
cleanup_error(int argc, void **argv)
{
ohshit("cleanup error");
}
static void
test_cleanup_error(void)
{
jmp_buf handler_jump;
bool pass;
if (setjmp(handler_jump)) {
/* The ohshit() is not supposed to get us here, as it should
* be caught by the internal recursive error context. */
pass = false;
pop_cleanup(ehflag_normaltidy);
pop_error_context(ehflag_normaltidy);
} else {
push_error_context_jump(&handler_jump, printer_empty, "test cleanup");
push_cleanup(cleanup_error, ~ehflag_normaltidy, 0);
pop_error_context(ehflag_bombout);
/* We should have recovered from the cleanup handler failing,
* and arrived here correctly. */
pass = true;
}
test_pass(pass);
}
TEST_ENTRY(test)
{
test_plan(3);
if (!test_is_verbose()) {
int fd;
/* Shut up stderr, we do not want the error output. */
fd = open("/dev/null", O_RDWR);
if (fd < 0)
test_bail("cannot open /dev/null");
dup2(fd, 2);
}
test_error_handler_func();
test_error_handler_jump();
test_cleanup_error();
}
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