Commit 5c01259b authored by Yuan Tan's avatar Yuan Tan Committed by Willy Tarreau
Browse files

selftests/nolibc: add testcase for pipe 



Add a test case of pipe that sends and receives message in a single
process.

Suggested-by: default avatarThomas Weißschuh <thomas@t-8ch.de>
Suggested-by: default avatarWilly Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/all/c5de2d13-3752-4e1b-90d9-f58cca99c702@t-8ch.de/


Signed-off-by: default avatarYuan Tan <tanyuan@tinylab.org>
Reviewed-by: default avatarThomas Weißschuh <linux@weissschuh.net>
[wt: fixed the "len" type to size_t to address a sign-compare warning
 with upcoming patches]
Signed-off-by: default avatarWilly Tarreau <w@1wt.eu>
parent 3ec38af6

tools/testing/selftests/nolibc/nolibc-test.c

+22 −0
Original line number Diff line number Diff line
@@ -768,6 +768,27 @@ int test_mmap_munmap(void) 
	return !!ret;

}



static int test_pipe(void)

{

	const char *const msg = "hello, nolibc";

	int pipefd[2];

	char buf[32];

	size_t len;



	if (pipe(pipefd) == -1)

		return 1;



	write(pipefd[1], msg, strlen(msg));

	close(pipefd[1]);

	len = read(pipefd[0], buf, sizeof(buf));

	close(pipefd[0]);



	if (len != strlen(msg))

		return 1;



	return !!memcmp(buf, msg, len);

}





/* Run syscall tests between IDs <min> and <max>.

 * Return 0 on success, non-zero on failure.
@@ -853,6 +874,7 @@ int run_syscall(int min, int max) 
		CASE_TEST(mmap_munmap_good);  EXPECT_SYSZR(1, test_mmap_munmap()); break;

		CASE_TEST(open_tty);          EXPECT_SYSNE(1, tmp = open("/dev/null", 0), -1); if (tmp != -1) close(tmp); break;

		CASE_TEST(open_blah);         EXPECT_SYSER(1, tmp = open("/proc/self/blah", 0), -1, ENOENT); if (tmp != -1) close(tmp); break;

		CASE_TEST(pipe);              EXPECT_SYSZR(1, test_pipe()); break;

		CASE_TEST(poll_null);         EXPECT_SYSZR(1, poll(NULL, 0, 0)); break;

		CASE_TEST(poll_stdout);       EXPECT_SYSNE(1, ({ struct pollfd fds = { 1, POLLOUT, 0}; poll(&fds, 1, 0); }), -1); break;

		CASE_TEST(poll_fault);        EXPECT_SYSER(1, poll((void *)1, 1, 0), -1, EFAULT); break;