Re: [PATCH] xfs: test xfs_info on block device and mountpoint

[Eryu Guan <guaneryu@gmail.com>]

On Fri, Jun 14, 2019 at 12:49:54PM +0800, Zorro Lang wrote:
> There was a bug, xfs_info fails on a mounted block device:
> 
>   # xfs_info /dev/mapper/testdev
>   xfs_info: /dev/mapper/testdev contains a mounted filesystem
> 
>   fatal error -- couldn't initialize XFS library
> 
> xfsprogs has fixed it, this case is used to cover this bug.

Would you please document the commit that fixed this bug in test
description?

> 
> Signed-off-by: Zorro Lang <zlang@redhat.com>
> ---
>  tests/xfs/1000     | 65 ++++++++++++++++++++++++++++++++++++++++++++++
>  tests/xfs/1000.out |  2 ++

I find it easier if you just pick the next free seq number :) If there's
no conflict I can just apply the patch, and if there's conflict I'll do
manual edit anyway.

>  tests/xfs/group    |  1 +
>  3 files changed, 68 insertions(+)
>  create mode 100755 tests/xfs/1000
>  create mode 100644 tests/xfs/1000.out
> 
> diff --git a/tests/xfs/1000 b/tests/xfs/1000
> new file mode 100755
> index 00000000..689fe9e7
> --- /dev/null
> +++ b/tests/xfs/1000
> @@ -0,0 +1,65 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (c) 2019 Red Hat, Inc.  All Rights Reserved.
> +#
> +# FS QA Test No. 1000
> +#
> +# test xfs_info on block device and mountpoint
> +#
> +seq=`basename $0`
> +seqres=$RESULT_DIR/$seq
> +echo "QA output created by $seq"
> +
> +here=`pwd`
> +tmp=/tmp/$$
> +status=1	# failure is the default!
> +trap "_cleanup; exit \$status" 0 1 2 3 15
> +
> +_cleanup()
> +{
> +	cd /
> +	rm -f $tmp.*
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +
> +# remove previous $seqres.full before test
> +rm -f $seqres.full
> +
> +# real QA test starts here
> +_supported_fs xfs
> +_supported_os Linux
> +_require_scratch
> +
> +test_xfs_info()
> +{
> +	local target="$1"
> +	local file=$tmp.$seq.info
> +
> +	$XFS_INFO_PROG $target > $file 2>&1
> +	if [ $? -ne 0 ];then
> +		echo "$XFS_INFO_PROG $target fails:"
> +		cat $file
> +	else
> +		cat $file >> $seqres.full
> +	fi
> +}
> +
> +_scratch_mkfs > $seqres.full 2>&1
> +# test unmounted block device(contains XFS)
> +# Due to old xfsprogs doesn't support xfs_info a unmounted device, skip it
> +$XFS_DB_PROG -c "info" $SCRATCH_DEV | grep -q "command info not found"

Better to explain why xfs_db is used here instead of xfs_info.

> +if [ $? -ne 0 ]; then
> +	test_xfs_info $SCRATCH_DEV
> +fi

And I'd suggest move this test to the end (after umount the scratch dev)
so we're sure the device contains a valid xfs (which has just been
mounted & umounted).

Thanks,
Eryu

> +
> +_scratch_mount
> +# test mounted block device and mountpoint
> +test_xfs_info $SCRATCH_DEV
> +test_xfs_info $SCRATCH_MNT
> +
> +echo "Silence is golden"
> +# success, all done
> +status=0
> +exit
> diff --git a/tests/xfs/1000.out b/tests/xfs/1000.out
> new file mode 100644
> index 00000000..681b3b48
> --- /dev/null
> +++ b/tests/xfs/1000.out
> @@ -0,0 +1,2 @@
> +QA output created by 1000
> +Silence is golden
> diff --git a/tests/xfs/group b/tests/xfs/group
> index ffe4ae12..047fe332 100644
> --- a/tests/xfs/group
> +++ b/tests/xfs/group
> @@ -504,3 +504,4 @@
>  504 auto quick mkfs label
>  505 auto quick spaceman
>  506 auto quick health
> +1000 auto quick
> -- 
> 2.17.2
>