[PATCH v2 2/2] xfstests btrfs/316: test send / receive

[Jan Schmidt <list.xfs@jan-o-sch.net>]

Basic send / receive functionality test for btrfs. Requires current
version of fsstress built (-x support). Relies on fssum tool but can
skip the test if it failed to build.

Signed-off-by: Jan Schmidt <list.xfs@jan-o-sch.net>
---
 README              |    3 +
 tests/btrfs/316     |  113 +++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/btrfs/316.out |    4 ++
 tests/btrfs/group   |    1 +
 4 files changed, 121 insertions(+), 0 deletions(-)
 create mode 100755 tests/btrfs/316
 create mode 100644 tests/btrfs/316.out

diff --git a/README b/README
index a49ca7c..d287f63 100644
--- a/README
+++ b/README
@@ -26,6 +26,9 @@ Preparing system for tests (IRIX and Linux):
       http://www.extra.research.philips.com/udf/, then copy the udf_test 
       binary to xfstests/src/. If you wish to disable UDF verification test
       set the environment variable DISABLE_UDF_TEST to 1.
+    - If you wish to run the btrfs send / receive components of the suite
+      install fssum from
+        git://git.kernel.org/pub/scm/linux/kernel/git/arne/far-progs.git
 	
     
     - create one or two partitions to use for testing
diff --git a/tests/btrfs/316 b/tests/btrfs/316
new file mode 100755
index 0000000..2e86428
--- /dev/null
+++ b/tests/btrfs/316
@@ -0,0 +1,113 @@
+#! /bin/bash
+# FSQA Test No. 314
+#
+# Run fsstress to create a reasonably strange file system, make a
+# snapshot (base) and run more fsstress. Then take another snapshot
+# (incr) and send both snapshots to a temp file. Remake the file
+# system and receive from the files. Check both states with fssum.
+#
+#-----------------------------------------------------------------------
+# Copyright (C) 2013 STRATO.  All rights reserved.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write the Free Software Foundation,
+# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+#-----------------------------------------------------------------------
+#
+# creator
+owner=list.btrfs@jan-o-sch.net
+
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=`mktemp -d`
+status=1
+
+_cleanup()
+{
+	echo "*** unmount"
+	umount $SCRATCH_MNT 2>/dev/null
+	rm -f $tmp.*
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# real QA test starts here
+_need_to_be_root
+_supported_fs btrfs
+_supported_os Linux
+_require_scratch
+_require_command $FSSUM_PROG fssum
+
+rm -f $seqres.full
+
+workout()
+{
+	fsz=$1
+	ops=$2
+
+	umount $SCRATCH_DEV >/dev/null 2>&1
+	echo "*** mkfs -dsize=$fsz"    >>$seqres.full
+	echo ""                                     >>$seqres.full
+	_scratch_mkfs_sized $fsz >>$seqres.full 2>&1 \
+		|| _fail "size=$fsz mkfs failed"
+	run_check _scratch_mount "-o noatime"
+
+	run_check $FSSTRESS_PROG -d $SCRATCH_MNT -n $ops $FSSTRESS_AVOID -x \
+		"$BTRFS_UTIL_PROG subvol snap -r $SCRATCH_MNT $SCRATCH_MNT/base"
+
+	run_check $BTRFS_UTIL_PROG subvol snap -r $SCRATCH_MNT $SCRATCH_MNT/incr
+
+	echo "# $BTRFS_UTIL_PROG send $SCRATCH_MNT/base > $tmp/base.snap" \
+		>> $seqres.full
+	$BTRFS_UTIL_PROG send $SCRATCH_MNT/base > $tmp/base.snap 2>> $seqres.full \
+		|| _fail "failed: '$@'"
+	echo "# $BTRFS_UTIL_PROG send -p $SCRATCH_MNT/base\
+		$SCRATCH_MNT/incr > $tmp/incr.snap" >> $seqres.full
+	$BTRFS_UTIL_PROG send -p $SCRATCH_MNT/base \
+		$SCRATCH_MNT/incr > $tmp/incr.snap 2>> $seqres.full \
+		|| _fail "failed: '$@'"
+
+	run_check $FSSUM_PROG -A -f -w $tmp/base.fssum $SCRATCH_MNT/base
+	run_check $FSSUM_PROG -A -f -w $tmp/incr.fssum -x $SCRATCH_MNT/incr/base \
+		$SCRATCH_MNT/incr
+
+	umount $SCRATCH_DEV >/dev/null 2>&1
+	echo "*** mkfs -dsize=$fsz"    >>$seqres.full
+	echo ""                                     >>$seqres.full
+	_scratch_mkfs_sized $fsz >>$seqres.full 2>&1 \
+		|| _fail "size=$fsz mkfs failed"
+	run_check _scratch_mount "-o noatime"
+
+	run_check $BTRFS_UTIL_PROG receive $SCRATCH_MNT < $tmp/base.snap
+	run_check $FSSUM_PROG -r $tmp/base.fssum $SCRATCH_MNT/base
+
+	run_check $BTRFS_UTIL_PROG receive $SCRATCH_MNT < $tmp/incr.snap
+	run_check $FSSUM_PROG -r $tmp/incr.fssum $SCRATCH_MNT/incr
+}
+
+echo "*** test send / receive"
+
+fssize=`expr 2000 \* 1024 \* 1024`
+ops=200
+
+workout $fssize $ops
+
+echo "*** done"
+status=0
+exit
diff --git a/tests/btrfs/316.out b/tests/btrfs/316.out
new file mode 100644
index 0000000..4564c85
--- /dev/null
+++ b/tests/btrfs/316.out
@@ -0,0 +1,4 @@
+QA output created by 316
+*** test send / receive
+*** done
+*** unmount
diff --git a/tests/btrfs/group b/tests/btrfs/group
index bc6c256..11d708a 100644
--- a/tests/btrfs/group
+++ b/tests/btrfs/group
@@ -9,3 +9,4 @@
 276 auto rw metadata
 284 auto
 307 auto quick
+316 auto rw metadata
-- 
1.7.2.5