Re: [PATCH] generic/577: add missing fsverity metadata cleaning

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On Wed, Nov 02, 2022 at 05:51:34PM +0100, Andrey Albershteyn wrote:
> When fs-verity is enabled on the file, file becomes read-only. In last
> check, test tries to empty the file. However, fs-verity denies
> opening/writing to file.
> 
> Remove file beforehand as in other checks.
> 
> Signed-off-by: Andrey Albershteyn <aalbersh@xxxxxxxxxx>
> ---
>  tests/generic/577 | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/tests/generic/577 b/tests/generic/577
> index 98c3888f..916f3be3 100755
> --- a/tests/generic/577
> +++ b/tests/generic/577
> @@ -121,6 +121,7 @@ if _fsv_have_hash_algorithm sha512 $fsv_file; then
>  fi
>  
>  echo -e "\n# Testing empty file"
> +reset_fsv_file
>  echo -n > $fsv_file
>  _fsv_sign $fsv_file $sigfile.emptyfile --key=$keyfile --cert=$certfile | \
>  		_filter_scratch

Thank you for reporting this.  How did you notice this?  This test actually is
currently passing, because there is another test bug that makes
_fsv_have_hash_algorithm always return false here.  That really needs to be
fixed first, as otherwise your fix doesn't really do anything.

- Eric



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