[src/trunk]: src/tests/fs/vfs Add test which fills up the file system and exp...

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

details:   https://anonhg.NetBSD.org/src/rev/4548d4ca9326
branches:  trunk
changeset: 757169:4548d4ca9326
user:      pooka <pooka%NetBSD.org@localhost>
date:      Tue Aug 17 11:46:16 2010 +0000

description:
Add test which fills up the file system and expects ENOSPC.

diffstat:

 tests/fs/vfs/Makefile |    3 +-
 tests/fs/vfs/t_full.c |  101 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 103 insertions(+), 1 deletions(-)

diffs (122 lines):

diff -r cb0233c5893a -r 4548d4ca9326 tests/fs/vfs/Makefile
--- a/tests/fs/vfs/Makefile     Tue Aug 17 11:35:23 2010 +0000
+++ b/tests/fs/vfs/Makefile     Tue Aug 17 11:46:16 2010 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile,v 1.9 2010/07/26 16:25:19 pooka Exp $
+#      $NetBSD: Makefile,v 1.10 2010/08/17 11:46:16 pooka Exp $
 #
 
 .include <bsd.own.mk>
@@ -6,6 +6,7 @@
 TESTSDIR=      ${TESTSBASE}/fs/vfs
 WARNS=         4
 
+TESTS_C+=      t_full
 TESTS_C+=      t_renamerace
 TESTS_C+=      t_rmdirrace
 TESTS_C+=      t_vfsops
diff -r cb0233c5893a -r 4548d4ca9326 tests/fs/vfs/t_full.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/fs/vfs/t_full.c     Tue Aug 17 11:46:16 2010 +0000
@@ -0,0 +1,101 @@
+/*     $NetBSD: t_full.c,v 1.1 2010/08/17 11:46:16 pooka Exp $ */
+
+/*-
+ * Copyright (c) 2010 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/stat.h>
+#include <sys/statvfs.h>
+
+#include <atf-c.h>
+#include <fcntl.h>
+#include <libgen.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <rump/rump_syscalls.h>
+#include <rump/rump.h>
+
+#include "../common/h_fsmacros.h"
+#include "../../h_macros.h"
+
+/*
+ * Write this much over the image size.  This is to force an NFS commit,
+ * since we might just stuff data into the cache and miss the problem.
+ */
+#define NFSBONUS (1<<16)
+
+static void
+fillfs(const atf_tc_t *tc, const char *mp)
+{
+       char buf[8192];
+       size_t written;
+       ssize_t n = 0; /* xxxgcc */
+       size_t bonus;
+       int fd, i = 0;
+
+       if (FSTYPE_PUFFS(tc)) {
+               /* XXX: I would *LIKE* to skip this, but atf won't let me */
+               return;
+
+               atf_tc_skip("puffs does not support explicit block allocation");
+       }
+
+       bonus = 0;
+       if (FSTYPE_NFS(tc))
+               bonus = NFSBONUS;
+
+       if (rump_sys_chdir(mp) == -1)
+               atf_tc_fail_errno("chdir mountpoint");
+       fd = rump_sys_open("afile", O_CREAT | O_RDWR);
+       if (fd == -1)
+               atf_tc_fail_errno("create file");
+
+       for (written = 0; written < FSTEST_IMGSIZE + bonus; written +=n) {
+               memset(buf, i++, sizeof(buf)); /* known garbage */
+               n = rump_sys_write(fd, buf, sizeof(buf));
+               if (n == -1)
+                       break;
+       }
+       if (n == -1) {
+               if (errno != ENOSPC)
+                       atf_tc_fail_errno("write");
+       } else {
+               atf_tc_fail("filled file system over size limit");
+       }
+
+       rump_sys_close(fd);
+       rump_sys_chdir("/");
+}
+
+ATF_TC_FSAPPLY(fillfs, "fills file system, expects ENOSPC");
+
+ATF_TP_ADD_TCS(tp)
+{
+
+       ATF_TP_FSAPPLY(fillfs);
+
+       return atf_no_error();
+}