Re: [PATCH v3 3/3] generic/396: test correct d_type values

[Eryu Guan <eguan@redhat.com>]

On Wed, Dec 21, 2016 at 03:50:21PM +0200, Amir Goldstein wrote:
> Verify correct d_type values of dir entries.
> 
> This test does NOT require that file system support the filetype feature.
> It verifies that either all file types are reported as DT_UNKNOWN
> or that all file types are reported correctly.
> 
> For fs for which we know how to test the filetype feature (xfs|ext*)
> verify getting DT_UNKNOWN IFF filetype feature is disabled.
> 
> Special dir entries . and .. MAY be reported as DT_UNKNOWN IF filetype
> feature is disabled (ext4), but MAY also be reported as DT_DIR in this
> case (xfs).
> 
> Signed-off-by: Amir Goldstein <amir73il@gmail.com>
> ---
>  tests/generic/396     | 93 +++++++++++++++++++++++++++++++++++++++++++++++++++
>  tests/generic/396.out |  9 +++++
>  tests/generic/group   |  1 +
>  3 files changed, 103 insertions(+)
>  create mode 100755 tests/generic/396
>  create mode 100644 tests/generic/396.out
> 
> Added another test to the matrix, found another special case to handle:
> ext4 vs. xfs returns DT_UNKNOWN for . and .. on ! _supports_filetype.
> 
> Fixes the test to correctly handle both cases.
> 
> Tested with tmpfs, ext2, ext4, xfs for d_type supported fs
> Tested with xfs -m crc=0 -n ftype=0 for d_type unsupported fs
> Tested with ext2/ext4 -O ^filetype  for d_type unsupported fs
> 
> v3:
> - allow DT_UNKNOWN type for . and .. when filetype feature is disabled (ext4)
> 
> v2:
> - use helper to test for file type support
> - allow DT_UNKNOWN type, but only for all files
> - verify . and .. have DT_DIR type
> 
> v1:
> - verify that d_type matches actual file type
> 
> diff --git a/tests/generic/396 b/tests/generic/396
> new file mode 100755
> index 0000000..0d4a17d
> --- /dev/null
> +++ b/tests/generic/396
> @@ -0,0 +1,93 @@
> +#! /bin/bash
> +# FSQA Test No. 396
> +#
> +# Test filetype feature
> +#
> +# This test does NOT require that file system support the d_type feature.
> +# It verifies that either all file types are reported as DT_UNKNOWN
> +# or all file types are reported correctly.
> +#
> +# For fs for which we know how to test the filetype feature (xfs|ext*)
> +# verify getting DT_UNKNOWN IFF feature is disabled.
> +# Special dir entries . and .. MAY be reported as DT_UNKNOWN IF filetype
> +# feature is disabled (ext4), but MAY also be reported as DT_DIR in this
> +# case (xfs).
> +#
> +#-----------------------------------------------------------------------
> +#
> +# Copyright (C) 2016 CTERA Networks. All Rights Reserved.
> +# Author: Amir Goldstein <amir73il@gmail.com>
> +#
> +# 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"
> +
> +tmp=/tmp/$$
> +status=1	# failure is the default!
> +trap "_cleanup; exit \$status" 0 1 2 3 15
> +
> +_cleanup()
> +{
> +	rm -f $tmp.*
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +
> +# real QA test starts here
> +_supported_fs generic
> +_supported_os Linux
> +_require_scratch

I added a "_require_test_program t_dir_type" here and merged.

Thanks,
Eryu