mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-06-27 06:48:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Create unit test framework for subprocesses

Browse source
This commit is contained in:
Justine Tunney 2022-09-03 18:01:38 -07:00
parent 263711965f
commit c5659b93f8
10 changed files with 279 additions and 77 deletions
Download patch file Download diff file Expand all files Collapse all files

66
libc/testlib/subprocess.h Normal file
View file

@ -0,0 +1,66 @@
#ifndef COSMOPOLITAN_LIBC_TESTLIB_SUBPROCESS_H_
#define COSMOPOLITAN_LIBC_TESTLIB_SUBPROCESS_H_
#include "libc/calls/calls.h"
#include "libc/macros.internal.h"
#include "libc/runtime/runtime.h"
#include "libc/testlib/testlib.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
/**
* @fileoverview Test Subprocess Helper Macros
*
* These macros may be used to run unit tests in a subprocess. It's
* particularly useful when testing code that causes the process to die:
*
* TEST(term, test) {
* SPAWN(fork);
* raise(SIGUSR1);
* TERMS(SIGUSR1);
* }
*
* The default action for both EXITS() and TERMS() is _Exit(0), unless
* an EXPECT_FOO() macro failed, in which case the status is non-zero.
*
* TEST(my, test) {
* SPAWN(fork);
* // do stuff
* EXITS(0);
* }
*
* You can also nest subprocesses:
*
* TEST(exit, test) {
* SPAWN(fork);
* SPAWN(vfork);
* _Exit(2);
* EXITS(2);
* _Exit(1);
* EXITS(1);
* }
*/
#define SPAWN(METHOD) \
{ \
int _pid, _failed = g_testlib_failed; \
ASSERT_NE(-1, (_pid = METHOD())); \
if (!_pid) {
#define EXITS(rc) \
_Exit(MAX(0, MIN(255, g_testlib_failed - _failed))); \
} \
testlib_waitforexit(__FILE__, __LINE__, #rc, rc, _pid); \
}
#define TERMS(sig) \
_Exit(MAX(0, MIN(255, g_testlib_failed - _failed))); \
} \
testlib_waitforterm(__FILE__, __LINE__, #sig, sig, _pid); \
}
void testlib_waitforexit(const char *, int, const char *, int, int);
void testlib_waitforterm(const char *, int, const char *, int, int);
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_TESTLIB_SUBPROCESS_H_ */