cosmopolitan/test/libc/runtime/exit_test.c
Justine Tunney d5910e2673
Fix bugs and make code tinier
- Fixed bug where stdio eof wasn't being sticky
- Fixed bug where fseeko() wasn't clearing eof state
- Removed assert() usage from libc favoring _unassert() / _npassert()
2022-10-09 23:21:34 -07:00

62 lines
2.5 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or 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. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/runtime/runtime.h"
#include "libc/testlib/subprocess.h"
#include "libc/testlib/testlib.h"
int i, *p;
void SetUp(void) {
p = _mapshared(FRAMESIZE);
}
void TearDown(void) {
munmap(p, FRAMESIZE);
}
void AtExit3(void) {
p[i++] = 3;
}
void AtExit2(void) {
p[i++] = 2;
exit(2);
}
void AtExit1(void) {
p[i++] = 1;
atexit(AtExit2);
exit(1);
}
// consistent with glibc, musl, freebsd, openbsd & netbsd
// please note posix says recursion is undefined behavior
// however, fifo ordering of atexit handlers is specified
TEST(exit, test) {
SPAWN(fork);
atexit(AtExit3);
atexit(AtExit3);
atexit(AtExit1);
exit(0);
EXITS(2);
ASSERT_EQ(1, p[0]);
ASSERT_EQ(2, p[1]);
ASSERT_EQ(3, p[2]);
ASSERT_EQ(3, p[3]);
}