On 2016/07/01 11:36, FUJITA Tomonori wrote:
> On Wed, 29 Jun 2016 00:26:42 -0700
> "Kawai, Hiroaki" <[email protected]> wrote:
>
>> Some system will use padded paackets for ethernet frame that is at
>> least 64 bytes long.
>
> This patch means that the tester sends an ethernet frame that is less
> than 64B?

I tested again and confirmed that the tester was
sending 60B frame with padding.

The problem was that len(model_pkt) == 54 in
ryu/tests/switch/of13/match/19_ICMPV4_TYPE.json
for example, and the test is failing.
# Without padding, the two packets were identical.




>> Signed-off-by: Kawai, Hiroaki <[email protected]>
>> ---
>>  ryu/tests/switch/tester.py | 16 ++++++++++------
>>  1 file changed, 10 insertions(+), 6 deletions(-)
>>
>> diff --git a/ryu/tests/switch/tester.py b/ryu/tests/switch/tester.py
>> index 22238b8..4191d0d 100644
>> --- a/ryu/tests/switch/tester.py
>> +++ b/ryu/tests/switch/tester.py
>> @@ -741,8 +741,16 @@ class OfTester(app_manager.RyuApp):
>>              err_msg = 'OFPPacketIn[reason=%d]' % msg.reason
>>          elif repr(msg.data) != repr(model_pkt):
>>              pkt_type = 'packet'
>> -            err_msg = self._diff_packets(packet.Packet(model_pkt),
>> +            diff = self._diff_packets(packet.Packet(model_pkt),
>>                                           packet.Packet(msg.data))
>> +            if diff:
>> +                err_msg = diff
>> +            elif len(msg.data) < 64 and msg.data.startswith(model_pkt):
>> +                # Padding might be present because of ethernet frame size 
>> (64 bytes~).
>> +                return TEST_OK
>> +            else:
>> +                err_msg = ('Encounter an error during packet comparison.'
>> +                    ' it is malformed.')
>>          else:
>>              return TEST_OK
>>
>> @@ -977,11 +985,7 @@ class OfTester(app_manager.RyuApp):
>>                          break
>>                  if model_p != rcv_p:
>>                      msg.append('str(%s)' % repr(rcv_p))
>> -        if msg:
>> -            return '/'.join(msg)
>> -        else:
>> -            return ('Encounter an error during packet comparison.'
>> -                    ' it is malformed.')
>> +        return '/'.join(msg)
>>
>>      def _test_get_throughput(self):
>>          xid = self.tester_sw.send_flow_stats()
>> --
>> 2.7.4
>>
>>
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