Re: [Qemu-devel] [PATCH v6 2/2] block/vxhs.c: Add qemu-iotests for new block device type "vxhs"

[Jeff Cody]

On Mon, Nov 07, 2016 at 04:59:45PM -0800, Ashish Mittal wrote:
> These changes use a vxhs test server that is a part of the following
> repository:
> https://github.com/MittalAshish/libqnio.git
> 
> Signed-off-by: Ashish Mittal <address@hidden>
> ---
> v6 changelog:
> (1) Added iotests for VxHS block device.
> 
>  tests/qemu-iotests/common        |  6 ++++++
>  tests/qemu-iotests/common.config | 13 +++++++++++++
>  tests/qemu-iotests/common.filter |  1 +
>  tests/qemu-iotests/common.rc     | 19 +++++++++++++++++++
>  4 files changed, 39 insertions(+)
> 

[...]

> diff --git a/tests/qemu-iotests/common.filter 
> b/tests/qemu-iotests/common.filter
> index 240ed06..a8a4d0e 100644
> --- a/tests/qemu-iotests/common.filter
> +++ b/tests/qemu-iotests/common.filter
> @@ -123,6 +123,7 @@ _filter_img_info()
>          -e "s#$TEST_DIR#TEST_DIR#g" \
>          -e "s#$IMGFMT#IMGFMT#g" \
>          -e 's#nbd://127.0.0.1:10810$#TEST_DIR/t.IMGFMT#g' \
> +        -e 's#json.*vdisk-id.*vxhs"}}#TEST_DIR/t.IMGFMT#' \
>          -e "/encrypted: yes/d" \
>          -e "/cluster_size: [0-9]\\+/d" \
>          -e "/table_size: [0-9]\\+/d" \
> diff --git a/tests/qemu-iotests/common.rc b/tests/qemu-iotests/common.rc
> index 3213765..06a3164 100644
> --- a/tests/qemu-iotests/common.rc
> +++ b/tests/qemu-iotests/common.rc
> @@ -89,6 +89,9 @@ else
>          TEST_IMG=$TEST_DIR/t.$IMGFMT
>      elif [ "$IMGPROTO" = "archipelago" ]; then
>          TEST_IMG="archipelago:at.$IMGFMT"
> +    elif [ "$IMGPROTO" = "vxhs" ]; then
> +        TEST_IMG_FILE=$TEST_DIR/t.$IMGFMT
> +        TEST_IMG="vxhs://127.0.0.1:9999/t.$IMGFMT"
>      else
>          TEST_IMG=$IMGPROTO:$TEST_DIR/t.$IMGFMT
>      fi
> @@ -175,6 +178,12 @@ _make_test_img()
>          eval "$QEMU_NBD -v -t -b 127.0.0.1 -p 10810 -f $IMGFMT  
> $TEST_IMG_FILE &"
>          sleep 1 # FIXME: qemu-nbd needs to be listening before we continue
>      fi
> +
> +    # Start QNIO server on image directory for vxhs protocol
> +    if [ $IMGPROTO = "vxhs" ]; then
> +        eval "$QEMU_VXHS -d  $TEST_DIR &"

So I spoke too soon about tests passing, but it is not really your fault :)

After rebasing to master, there is a new test 174 that now hangs (and hangs
for nbd, as well).  This is because the test is piping the results of
_make_test_image to sed to filter it.

This line should redirect stdout to /dev/null, so that the pipe does not
need to wait until process completion:

    eval "$QEMU_VXHS -d  $TEST_DIR > /dev/null &"