On 8/13/13 2:34 PM, Josef Bacik wrote:
> We were allowing users to delete their default subvolume, which is
> problematic.
> This test is a regression test to make sure we don't let that happen in the
> future. Thanks,
>
> Signed-off-by: Josef Bacik <jba...@fusionio.com>
> ---
> V1->V2: address the comments made by Eric Sandeen.
>
> tests/btrfs/003 | 66
> +++++++++++++++++++++++++++++++++++++++++++++++++++
> tests/btrfs/003.out | 2 +
> tests/btrfs/group | 1 +
> 3 files changed, 69 insertions(+), 0 deletions(-)
> create mode 100755 tests/btrfs/003
> create mode 100644 tests/btrfs/003.out
>
> diff --git a/tests/btrfs/003 b/tests/btrfs/003
> new file mode 100755
> index 0000000..aba883d
> --- /dev/null
> +++ b/tests/btrfs/003
> @@ -0,0 +1,66 @@
> +#! /bin/bash
> +# FS QA Test No. btrfs/003
> +#
> +# Regression test to make sure we can't delete the default subvol
> +#
> +#-----------------------------------------------------------------------
> +# Copyright (c) 2013 Fusion IO. 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
> +#
> +#-----------------------------------------------------------------------
> +#
> +
> +seq=`basename $0`
> +seqres=$RESULT_DIR/$seq
> +echo "QA output created by $seq"
> +
> +here=`pwd`
> +tmp=/tmp/$$
> +
> +status=1 # failure is the default!
> +
> +_cleanup()
> +{
> + rm -f $tmp.*
> +}
> +
> +trap "_cleanup ; exit \$status" 0 1 2 3 15
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +
> +# real QA test starts here
> +_supported_fs btrfs
> +_supported_os Linux
> +_require_scratch
> +
> +_scratch_mkfs > /dev/null 2>&1
> +_scratch_mount
> +
> +# This will be set to subvolid 256. If this ever changes in the future for
> +# whatever reason we'll have to pull the subvolid out of the subvol list
> command
> +# but since it's a newly mkfs'ed fs we should be fine with this.
. . . and then you grab it out of the subvol list command anyway ;)
So really this comment should go, and it sure would be nice to have
a btrfs_get_subvolid() helper for future generations...
-Eric
> +$BTRFS_UTIL_PROG sub create $SCRATCH_MNT/newvol >> $seqres.full 2>&1 \
> + || _fail "couldn't create subvol"
> +subvolid=$($BTRFS_UTIL_PROG sub list $SCRATCH_MNT | grep newvol | awk '{
> print $2 }')
> +$BTRFS_UTIL_PROG sub set-default $subvolid $SCRATCH_MNT >> $seqres.full 2>&1
> \
> + || _fail "couldn't set default"
> +$BTRFS_UTIL_PROG sub delete $SCRATCH_MNT/newvol >> $seqres.full 2>&1
> +_scratch_unmount
> +_scratch_mount || _fail "mount should have succeeded"
> +
> +echo "Silence is golden"
> +status=0 ; exit
> diff --git a/tests/btrfs/003.out b/tests/btrfs/003.out
> new file mode 100644
> index 0000000..6895fc8
> --- /dev/null
> +++ b/tests/btrfs/003.out
> @@ -0,0 +1,2 @@
> +QA output created by 003
> +Silence is golden
> diff --git a/tests/btrfs/group b/tests/btrfs/group
> index 5b65068..86f5a5a 100644
> --- a/tests/btrfs/group
> +++ b/tests/btrfs/group
> @@ -5,6 +5,7 @@
> #
> 001 auto quick
> 002 auto quick
> +003 auto quick
> 254 auto quick
> 264 auto
> 265 auto
>
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