At last, I trim end line space, then it works. I have to say, compare to
python, shell is really hard, autotest is harder...

2017-08-10 10:56 GMT+08:00 Sam <batmanu...@gmail.com>:

> Yes, it's because a space at the end of line:
>
> --- -^I2017-08-10 10:51:06.097868811 +0800$
>> +++ 
>> /home/gangyewei-3/mvs/mvs/tests/testsuite.dir/at-groups/789/stdout^I2017-08-10
>> 10:51:06.096038720 +0800$
>> @@ -1,5 +1,5 @@$
>> -LACP actor_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING$
>> -     partner_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING$
>> -LACP actor_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING$
>> -     partner_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING$
>> +LACP actor_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING $
>> +     partner_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING $
>> +LACP actor_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING $
>> +     partner_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING $
>
>
> but in my match, I add a space, I don't know why it doesn't work.
>
> AT_CHECK([[awk '/ACTIVE/' stdout | head -4]], [0], [LACP actor_state
>> ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING $
>>      partner_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING $
>> LACP actor_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING $
>>      partner_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING $
>> ])$
>
>
> 2017-08-09 22:34 GMT+08:00 Eric Blake <ebl...@redhat.com>:
>
>> On 08/09/2017 04:45 AM, Sam wrote:
>> > Then I change commd into `awk '/ACTIVE/' stdout | head -4`, it failed
>> > again, log is :
>> >
>> > ./netdev-dpdk.at:28: awk '/ACTIVE/' stdout | head -4
>> >> --- -   2017-08-09 17:41:24.809066088 +0800
>> >> +++ /home/gangyewei-3/mvs/mvs/tests/testsuite.dir/at-groups/789/stdout
>> >>  2017-08-09 17:41:24.807150522 +0800
>> >> @@ -1,5 +1,5 @@
>> >> -LACP actor_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING
>> >> -     partner_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING
>> >> -LACP actor_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING
>> >> -     partner_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING
>> >> +LACP actor_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING
>> >> +     partner_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING
>> >> +LACP actor_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING
>> >> +     partner_state ACTIVE AGGREGATION SYNC COLLECTING DISTRIBUTING
>>
>> Could this be a difference in line endings between what your .at file
>> used and what stdout contains (which in turn is what line endings
>> ovs-appctl outputs)?
>>
>> --
>> Eric Blake, Principal Software Engineer
>> Red Hat, Inc.           +1-919-301-3266
>> Virtualization:  qemu.org | libvirt.org
>>
>>
>
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