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[src/trunk]: src/tests/fs Add basic union test.



details:   https://anonhg.NetBSD.org/src/rev/b061b08d31d0
branches:  trunk
changeset: 753469:b061b08d31d0
user:      pooka <pooka%NetBSD.org@localhost>
date:      Mon Mar 29 18:19:19 2010 +0000

description:
Add basic union test.

diffstat:

 tests/fs/Atffile         |    4 +-
 tests/fs/Makefile        |    4 +-
 tests/fs/union/Atffile   |    6 ++
 tests/fs/union/Makefile  |   13 ++++
 tests/fs/union/t_basic.c |  137 +++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 160 insertions(+), 4 deletions(-)

diffs (196 lines):

diff -r bd872fe31a61 -r b061b08d31d0 tests/fs/Atffile
--- a/tests/fs/Atffile  Mon Mar 29 18:15:32 2010 +0000
+++ b/tests/fs/Atffile  Mon Mar 29 18:19:19 2010 +0000
@@ -1,6 +1,6 @@
 Content-Type: application/X-atf-atffile; version="1"
-X-NetBSD-Id: "$NetBSD: Atffile,v 1.4 2007/12/30 09:13:32 jmmv Exp $"
+X-NetBSD-Id: "$NetBSD: Atffile,v 1.5 2010/03/29 18:19:19 pooka Exp $"
 
 prop: test-suite = "NetBSD"
 
-tp-glob: *fs
+tp-glob: *fs union
diff -r bd872fe31a61 -r b061b08d31d0 tests/fs/Makefile
--- a/tests/fs/Makefile Mon Mar 29 18:15:32 2010 +0000
+++ b/tests/fs/Makefile Mon Mar 29 18:19:19 2010 +0000
@@ -1,10 +1,10 @@
-# $NetBSD: Makefile,v 1.4 2009/04/08 12:09:04 pooka Exp $
+# $NetBSD: Makefile,v 1.5 2010/03/29 18:19:19 pooka Exp $
 
 .include <bsd.own.mk>
 
 TESTSDIR=      ${TESTSBASE}/fs
 
-SUBDIR=        ffs puffs tmpfs
+SUBDIR+=       ffs puffs tmpfs union
 
 FILES= h_funcs.subr
 FILESDIR= ${TESTSDIR}
diff -r bd872fe31a61 -r b061b08d31d0 tests/fs/union/Atffile
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/fs/union/Atffile    Mon Mar 29 18:19:19 2010 +0000
@@ -0,0 +1,6 @@
+Content-Type: application/X-atf-atffile; version="1"
+X-NetBSD-Id: "$NetBSD: Atffile,v 1.1 2010/03/29 18:19:19 pooka Exp $"
+
+prop: test-suite = "NetBSD"
+
+tp: t_*
diff -r bd872fe31a61 -r b061b08d31d0 tests/fs/union/Makefile
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/fs/union/Makefile   Mon Mar 29 18:19:19 2010 +0000
@@ -0,0 +1,13 @@
+#      $NetBSD: Makefile,v 1.1 2010/03/29 18:19:19 pooka Exp $
+#
+
+TESTSDIR=      ${TESTSBASE}/fs/union
+WARNS=         4
+
+TESTS_C=       t_basic
+
+LDADD+=        -lrumpfs_union -lrumpvfs_layerfs -lrumpfs_ffs           # fs drivers
+LDADD+=        -lrumpdev_disk -lrumpdev                                # disk device
+LDADD+=        -lrumpvfs -lrump -lrumpuser -lpthread                   # base
+
+.include <bsd.test.mk>
diff -r bd872fe31a61 -r b061b08d31d0 tests/fs/union/t_basic.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/fs/union/t_basic.c  Mon Mar 29 18:19:19 2010 +0000
@@ -0,0 +1,137 @@
+/*     $NetBSD: t_basic.c,v 1.1 2010/03/29 18:19:19 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/union/union.h>
+#include <ufs/ufs/ufsmount.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 union functionality: two views");
+}
+#else
+#define atf_tc_fail(a, ...) errx(1, __VA_ARGS__)
+#endif
+
+#define MSTR "magic bus"
+
+static void
+xput_tfile(const char *path)
+{
+       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)
+{
+       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;
+}
+
+#define IMG1 "atf1.img"
+#define IMG2 "atf2.img"
+#define DEV1 "/dev/fs1"
+#define DEV2 "/dev/fs2"
+#define newfs_base "newfs -F -s 10000 "
+
+#ifdef USE_ATF
+ATF_TC_BODY(basic, tc)
+#else
+int main(int argc, char *argv[])
+#endif
+{
+       struct ufs_args args;
+       struct union_args unionargs;
+       int error;
+
+       if (system(newfs_base IMG1) == -1)
+               atf_tc_fail_errno("create img1");
+       if (system(newfs_base IMG2) == -1)
+               atf_tc_fail_errno("create img2");
+
+       rump_init();
+        rump_pub_etfs_register(DEV1, IMG1, RUMP_ETFS_BLK);
+        rump_pub_etfs_register(DEV2, IMG2, RUMP_ETFS_BLK);
+
+       if (rump_sys_mkdir("/mp1", 0777) == -1)
+               atf_tc_fail_errno("mp1");
+       if (rump_sys_mkdir("/mp2", 0777) == -1)
+               atf_tc_fail_errno("mp1");
+
+       memset(&args, 0, sizeof(args));
+       args.fspec = __UNCONST(DEV1);
+       if (rump_sys_mount(MOUNT_FFS, "/mp1", 0, &args, sizeof(args)) == -1)
+               atf_tc_fail_errno("could not mount ffs1");
+
+       memset(&args, 0, sizeof(args));
+       args.fspec = __UNCONST(DEV2);
+       if (rump_sys_mount(MOUNT_FFS, "/mp2", 0, &args, sizeof(args)) == -1)
+               atf_tc_fail_errno("could not mount tmpfs2");
+
+       xput_tfile("/mp1/tensti");
+       memset(&unionargs, 0, sizeof(unionargs));
+
+       unionargs.target = __UNCONST("/mp1");
+       unionargs.mntflags = UNMNT_BELOW;
+
+       if (rump_sys_mount(MOUNT_UNION, "/mp2", 0,
+           &unionargs, sizeof(unionargs)) == -1)
+               atf_tc_fail_errno("union mount");
+
+       /* first, test we can read the old file from the new namespace */
+       error = xread_tfile("/mp2/tensti");
+       if (error != 0)
+               atf_tc_fail("union compare failed: %d (%s)",
+                   error, strerror(error));
+
+       /* then, test upper layer writes don't affect the lower layer */
+       xput_tfile("/mp2/kiekko");
+       if ((error = xread_tfile("/mp1/kiekko")) != ENOENT)
+               atf_tc_fail("invisibility failed: %d (%s)",
+                   error, strerror(error));
+
+       /* unmount etc. yaddayadda if non-lazy */
+}
+
+#ifdef USE_ATF
+ATF_TP_ADD_TCS(tp)
+{
+       ATF_TP_ADD_TC(tp, basic);
+       return 0; /*XXX?*/
+}
+#endif



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