[LTP] [PATCH v4] Add PATH to tst_rhost_run.sh

[Wei Gao]

On Tue, Jan 17, 2023 at 09:26:13AM +0100, Petr Vorel wrote:
> Hi Wei, all,
> 
> I at least once reproduced the problem:
> # ./tst_rhost_run.sh
> RTNETLINK answers: File exists
> tst_rhost_run 1 TBROK: ip li add name ltp_ns_veth1 type veth peer name ltp_ns_veth2 failed
> 
> I can't reproduce it now, let's skip it.
> 
> Unfortunately there is another problem, which can't be solved with adjusting
> PATH for the test, because also remote end would need to have PATH adjusted
> With this patch and with your another patch [1]:
> 
> # ./tst_rhost_run.sh
> ...
> tst_rhost_run 1 TINFO: tst_rhost_run: cmd: tst_net_iface_prefix -r 10.0.0.1
> tst_rhost_run 1 TINFO: NETNS: ns_exec 17258 net,mnt sh -c " tst_net_iface_prefix -r 10.0.0.1 || echo RTERR" 2>&1
> ./../../../..//testcases/lib/tst_net.sh: line 1027: sh:: command not found
> tst_rhost_run 1 TINFO: tst_rhost_run: cmd: tst_net_iface_prefix -r fd00:1:1:1::1
> tst_rhost_run 1 TINFO: NETNS: ns_exec 17258 net,mnt sh -c " tst_net_iface_prefix -r fd00:1:1:1::1 || echo RTERR" 2>&1
> ./../../../..//testcases/lib/tst_net.sh: line 1032: sh:: command not found
> ...
> tst_rhost_run 1 TPASS: tst_rhost_run is working
> 
> => test claims TPASS, but it actually does not work properly (false negative).
> 
> Therefore instead of adjusting PATH I want to fix it properly, i.e. moving
> to testcases/kernel/containers/share/ (described previously).
> 
> Kind regards,
> Petr
> 
> [1] https://patchwork.ozlabs.org/project/ltp/patch/20230117040132.5245-1-wegao@suse.com/

Your failed case already not related my patch already since failed show "sh:: command not found", could you help check env such as
"which sh" ,  "sh" normally should work in default system PATH, no need add specific PATH.

But yes the test case claim PASS is wrong so we can further make improvement on this kind of error, such as add further check 
for "sh" command then we will exit case and make result failed. I can add more check for "sh" command.