Re: [PATCH 14/18] iotests: Make 110 work with data_file

[Maxim Levitsky <mlevitsk@redhat.com>]

On Fri, 2019-09-27 at 11:42 +0200, Max Reitz wrote:
> The only difference is that the json:{} filename of the image looks
> different.  We actually do not care about that filename in this test, we
> are only interested in (1) that there is a json:{} filename, and (2)
> whether the backing filename can be constructed.
> 
> So just filter out the json:{} data, thus making this test pass both
> with and without data_file.
> 
> Signed-off-by: Max Reitz <mreitz@redhat.com>
> ---
>  tests/qemu-iotests/110     | 7 +++++--
>  tests/qemu-iotests/110.out | 4 ++--
>  2 files changed, 7 insertions(+), 4 deletions(-)
> 
> diff --git a/tests/qemu-iotests/110 b/tests/qemu-iotests/110
> index f78df0e6e1..34459dcd60 100755
> --- a/tests/qemu-iotests/110
> +++ b/tests/qemu-iotests/110
> @@ -67,6 +67,7 @@ echo
>  # Across blkdebug without a config file, you cannot reconstruct filenames, so
>  # qemu is incapable of knowing the directory of the top image from the filename
>  # alone. However, using bdrv_dirname(), it should still work.
> +# (Filter out the json:{} filename so this test works with external data files)
>  TEST_IMG="json:{
>      'driver': '$IMGFMT',
>      'file': {
> @@ -82,7 +83,8 @@ TEST_IMG="json:{
>              }
>          ]
>      }
> -}" _img_info | _filter_img_info | grep -v 'backing file format'
> +}" _img_info | _filter_img_info | grep -v 'backing file format' \
> +    | sed -e 's#^image: json:.*#image: json:{ /* filtered */ }#'
>  
>  echo
>  echo '=== Backing name is always relative to the backed image ==='
> @@ -114,7 +116,8 @@ TEST_IMG="json:{
>              }
>          ]
>      }
> -}" _img_info | _filter_img_info | grep -v 'backing file format'
> +}" _img_info | _filter_img_info | grep -v 'backing file format' \
> +    | sed -e 's#^image: json:.*#image: json:{ /* filtered */ }#'
>  
>  
>  # success, all done
> diff --git a/tests/qemu-iotests/110.out b/tests/qemu-iotests/110.out
> index f60b26390e..f835553a99 100644
> --- a/tests/qemu-iotests/110.out
> +++ b/tests/qemu-iotests/110.out
> @@ -11,7 +11,7 @@ backing file: t.IMGFMT.base (actual path: TEST_DIR/t.IMGFMT.base)
>  
>  === Non-reconstructable filename ===
>  
> -image: json:{"driver": "IMGFMT", "file": {"set-state.0.event": "read_aio", "image": {"driver": "file", "filename": "TEST_DIR/t.IMGFMT"}, "driver": "blkdebug", "set-state.0.new_state": 42}}
> +image: json:{ /* filtered */ }
>  file format: IMGFMT
>  virtual size: 64 MiB (67108864 bytes)
>  backing file: t.IMGFMT.base (actual path: TEST_DIR/t.IMGFMT.base)
> @@ -22,7 +22,7 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=t.IMGFMT.b
>  
>  === Nodes without a common directory ===
>  
> -image: json:{"driver": "IMGFMT", "file": {"children": [{"driver": "file", "filename": "TEST_DIR/t.IMGFMT"}, {"driver": "file", "filename": "TEST_DIR/t.IMGFMT.copy"}], "driver": "quorum", "vote-
> threshold": 1}}
> +image: json:{ /* filtered */ }
>  file format: IMGFMT
>  virtual size: 64 MiB (67108864 bytes)
>  backing file: t.IMGFMT.base (cannot determine actual path)

Again, maybe put that into the common.filter, so new tests won't need to copy&paste this?
Also maybe remove the image name completely from output, thus not needing the more complex regex?

Best regards,
	Maxim Levitsky