[src/trunk]: src/tests/fs Basic test for nullfs, which just checks that the t...

[pooka <pooka%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/cf520953cc76
branches:  trunk
changeset: 753475:cf520953cc76
user:      pooka <pooka%NetBSD.org@localhost>
date:      Tue Mar 30 01:02:47 2010 +0000

description:
Basic test for nullfs, which just checks that the two views act
somewhat sensibly.

diffstat:

 tests/fs/Makefile         |    4 +-
 tests/fs/nullfs/Atffile   |    6 ++
 tests/fs/nullfs/Makefile  |   12 ++++
 tests/fs/nullfs/t_basic.c |  137 ++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 157 insertions(+), 2 deletions(-)

diffs (183 lines):

diff -r 561142ed9384 -r cf520953cc76 tests/fs/Makefile
--- a/tests/fs/Makefile Tue Mar 30 01:01:09 2010 +0000
+++ b/tests/fs/Makefile Tue Mar 30 01:02:47 2010 +0000
@@ -1,10 +1,10 @@
-# $NetBSD: Makefile,v 1.5 2010/03/29 18:19:19 pooka Exp $
+# $NetBSD: Makefile,v 1.6 2010/03/30 01:02:47 pooka Exp $
 
 .include <bsd.own.mk>
 
 TESTSDIR=      ${TESTSBASE}/fs
 
-SUBDIR+=       ffs puffs tmpfs union
+SUBDIR+=       ffs nullfs puffs tmpfs union
 
 FILES= h_funcs.subr
 FILESDIR= ${TESTSDIR}
diff -r 561142ed9384 -r cf520953cc76 tests/fs/nullfs/Atffile
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/fs/nullfs/Atffile   Tue Mar 30 01:02:47 2010 +0000
@@ -0,0 +1,6 @@
+Content-Type: application/X-atf-atffile; version="1"
+X-NetBSD-Id: "$NetBSD: Atffile,v 1.1 2010/03/30 01:02:47 pooka Exp $"
+
+prop: test-suite = "NetBSD"
+
+tp: t_*
diff -r 561142ed9384 -r cf520953cc76 tests/fs/nullfs/Makefile
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/fs/nullfs/Makefile  Tue Mar 30 01:02:47 2010 +0000
@@ -0,0 +1,12 @@
+#      $NetBSD: Makefile,v 1.1 2010/03/30 01:02:47 pooka Exp $
+#
+
+TESTSDIR=      ${TESTSBASE}/fs/union
+WARNS=         4
+
+TESTS_C=       t_basic
+
+LDADD+=        -lrumpfs_tmpfs -lrumpfs_nullfs -lrumpvfs_layerfs        # fs drivers
+LDADD+=        -lrumpvfs -lrump -lrumpuser -lpthread                   # base
+
+.include <bsd.test.mk>
diff -r 561142ed9384 -r cf520953cc76 tests/fs/nullfs/t_basic.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/fs/nullfs/t_basic.c Tue Mar 30 01:02:47 2010 +0000
@@ -0,0 +1,137 @@
+/*     $NetBSD: t_basic.c,v 1.1 2010/03/30 01:02:47 pooka Exp $        */
+
+#include <sys/types.h>
+#include <sys/mount.h>
+
+#include <atf-c.h>
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <rump/rump.h>
+#include <rump/rump_syscalls.h>
+
+#include <miscfs/nullfs/null.h>
+#include <fs/tmpfs/tmpfs_args.h>
+
+#define USE_ATF
+#include "../../h_macros.h"
+
+#ifdef USE_ATF
+ATF_TC(basic);
+ATF_TC_HEAD(basic, tc)
+{
+       atf_tc_set_md_var(tc, "descr", "basic nullfs functionality");
+}
+#else
+#define atf_tc_fail(...) errx(1, __VA_ARGS__)
+#endif
+
+#define MSTR "magic bus"
+
+static void
+xput_tfile(const char *path, const char *mstr)
+{
+       int fd;
+
+       fd = rump_sys_open(path, O_CREAT | O_RDWR, 0777);
+       if (fd == -1)
+               atf_tc_fail_errno("create %s", path);
+       if (rump_sys_write(fd, MSTR, sizeof(MSTR)) != sizeof(MSTR))
+               atf_tc_fail_errno("write to testfile");
+       rump_sys_close(fd);
+}
+
+static int
+xread_tfile(const char *path, const char *mstr)
+{
+       char buf[128];
+       int fd;
+
+       fd = rump_sys_open(path, O_RDONLY);
+       if (fd == -1)
+               return errno;
+       if (rump_sys_read(fd, buf, sizeof(buf)) == -1)
+               atf_tc_fail_errno("read tfile");
+       rump_sys_close(fd);
+       if (strcmp(buf, MSTR) == 0)
+               return 0;
+       return EPROGMISMATCH;
+}
+
+#ifdef USE_ATF
+ATF_TC_BODY(basic, tc)
+#else
+int main(int argc, char *argv[])
+#endif
+{
+       struct null_args nargs;
+       struct tmpfs_args targs;
+       struct stat sb;
+       int error;
+
+       rump_init();
+       if (rump_sys_mkdir("/td1", 0777) == -1)
+               atf_tc_fail_errno("mp1");
+       if (rump_sys_mkdir("/td2", 0777) == -1)
+               atf_tc_fail_errno("mp1");
+
+       /* use tmpfs because rumpfs doesn't support regular files */
+       memset(&targs, 0, sizeof(targs));
+       targs.ta_version = TMPFS_ARGS_VERSION;
+       targs.ta_root_mode = 0777;
+       if (rump_sys_mount(MOUNT_TMPFS, "/td1", 0, &targs, sizeof(targs)) == -1)
+               atf_tc_fail_errno("could not mount tmpfs td1");
+
+       memset(&nargs, 0, sizeof(nargs));
+       nargs.nulla_target = __UNCONST("/td1");
+       if (rump_sys_mount(MOUNT_NULL, "/td2", 0, &nargs, sizeof(nargs)) == -1)
+               atf_tc_fail_errno("could not mount nullfs");
+
+       /* test unnull -> null */
+       xput_tfile("/td1/tensti", "jeppe");
+       error = xread_tfile("/td2/tensti", "jeppe");
+       if (error != 0)
+               atf_tc_fail("null compare failed: %d (%s)",
+                   error, strerror(error));
+
+       /* test null -> unnull */
+       xput_tfile("/td2/kiekko", "keppi");
+       error = xread_tfile("/td1/kiekko", "keppi");
+       if (error != 0)
+               atf_tc_fail("unnull compare failed: %d (%s)",
+                   error, strerror(error));
+
+       /* test unnull -> null overwrite */
+       xput_tfile("/td1/tensti", "se oolannin sota");
+       error = xread_tfile("/td2/tensti", "se oolannin sota");
+       if (error != 0)
+               atf_tc_fail("unnull compare failed: %d (%s)",
+                   error, strerror(error));
+
+       /* test that /td2 is unaffected in "real life" */
+       if (rump_sys_unmount("/td2", 0) == -1)
+               atf_tc_fail_errno("cannot unmount nullfs");
+       if ((error = rump_sys_stat("/td2/tensti", &sb)) != -1
+           || errno != ENOENT) {
+               atf_tc_fail("stat tensti should return ENOENT, got %d", error);
+       }
+       if ((error = rump_sys_stat("/td2/kiekko", &sb)) != -1
+           || errno != ENOENT) {
+               atf_tc_fail("stat kiekko should return ENOENT, got %d", error);
+       }
+
+       /* done */
+}
+
+#ifdef USE_ATF
+ATF_TP_ADD_TCS(tp)
+{
+       ATF_TP_ADD_TC(tp, basic);
+       return 0; /*XXX?*/
+}
+#endif