[apparmor] [patch] regression swap test: skip if on tmpfs

[John Johansen]

On 03/19/2014 12:29 AM, Steve Beattie wrote:
> The regression swap test attempts to activate a swap file in a directory
> under where the tmpdir[1] set in uservars.inc; if this is a tmpfs
> filesystem, this will fail (it's kind of silly to create a swap file on
> a tmpfs i.e. a memory-backed filesystem). This patch adds a check for
> that to the swap test script, skips the tests and marks the test as a
> failure if the check fails.
> 
> [1] Sadly, it does not honor TMPDIR.
> 
> Signed-off-by: Steve Beattie <steve at nxnw.org>
Acked-by: John Johansen <john.johansen at canonical.com>

> ---
>  tests/regression/apparmor/swap.sh |    9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> Index: b/tests/regression/apparmor/swap.sh
> ===================================================================
> --- a/tests/regression/apparmor/swap.sh
> +++ b/tests/regression/apparmor/swap.sh
> @@ -27,6 +27,15 @@ bin=$pwd
>  ## A. SWAP
>  ##
>  
> +# check if we can run the test at all
> +fstype=$(stat -f --format '%T' "${tmpdir}")
> +if [ "${fstype}" == "tmpfs" ] ; then
> +	echo "ERROR: tmpdir '${tmpdir}' is of type tmpfs; can't mount a swapfile on it" 1>&2
> +	echo "ERROR: skipping swap tests" 1>&2
> +	num_testfailures=1
> +	exit
> +fi
> +
>  swap_file=$tmpdir/swapfile
>  
>  dd if=/dev/zero of=${swap_file} bs=1024 count=512 2> /dev/null
> 
> 
>