Re: [PATCH net] selftests: net: avoid waiting for server in amt.sh forever when it fails.

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On Thu, May 9, 2024 at 6:36 PM Paolo Abeni <pabeni@xxxxxxxxxx> wrote:
>

Hi Paolo,
Thank you for the review!

> On Wed, 2024-05-08 at 04:06 +0000, Taehee Yoo wrote:
>
> > @@ -210,40 +217,52 @@ check_features()
> >
> > test_ipv4_forward()
> > {
> > - RESULT4=$(ip netns exec "${LISTENER}" nc -w 1 -l -u 239.0.0.1 4000)
> > + echo "" > $RESULT
> > + bash -c "$(ip netns exec "${LISTENER}" \
> > + timeout 10s > $RESULT)"
> > + RESULT4=$(< $RESULT)
>
> if you instead do:
>
> RESULT4=$(timeout 10s ip netns exec \
> "${LISTENER}" nc -w 1 -l -u 239.0.0.1 4000)
>
> You can avoid the additional tmp file (RESULT)
>

Thanks,
In the recent patch from Jakub, a variable is used instead of a file.

> > if [ "$RESULT4" == "172.17.0.2" ]; then
> > printf "TEST: %-60s [ OK ]\n" "IPv4 amt multicast forwarding"
> > - exit 0
> > else
> > printf "TEST: %-60s [FAIL]\n" "IPv4 amt multicast forwarding"
> > - exit 1
> > fi
> > +
> > }
>
> [...]
>
> > @@ -259,19 +278,17 @@ setup_iptables
> > setup_mcast_routing
> > test_remote_ip
> > test_ipv4_forward &
> > -pid=$!
> > -send_mcast4
> > -wait $pid || err=$?
> > -if [ $err -eq 1 ]; then
> > - ERR=1
> > -fi
> > +spid=$!
> > +send_mcast4 &
> > +cpid=$!
> > +wait $spid
>
> It looks like you don't capture anymore the return code from
> test_ipv4_forward, why?
>
> That will foul the test runner infra to think that this test is always
> successful.
>

You're right,
Sorry, I didn't consider it.
It should not be changed.


> Paolo
>

Thanks a lot!
Taehee Yoo





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