Excerpts from Joshua Harlow's message of 2016-10-17 20:59:23 -0700: > I think doug (he can correct me if I am wrong) was more wondering the > question of 'why would you want to use random data' in a test vs using > known fixed data. When a test fails it can be quite hard to identify the > reason if certain data that the test uses is randomized for each run. > > Randomness might be useful, but it has always made me feel like > something is off when you see to much of it in tests... > > -Josh
Yes, thanks, Josh, that's what I was trying to ask. Doug > > TommyLike Hu wrote: > > Hmm,it's used to generate the ip address for validation or rule > > checking, Meanwhile add some randomness. Of course it's unreasonable the > > case you mentioned, please check the existed cases [1] and [2] > > > > [1] > > https://github.com/openstack/manila/blob/master/manila_tempest_tests/tests/api/base.py#L828 > > [2] > > https://github.com/openstack/manila/blob/master/manila_tempest_tests/tests/api/test_replication.py#L76 > > > > Doug Hellmann <[email protected] <mailto:[email protected]>>于 > > 2016年10月18日周二 上午12:01写道： > > > > Excerpts from TommyLike Hu's message of 2016-10-17 14:46:36 +0000: > > > It's used in testcase already, and basic codes is from here: > > > > > > > https://github.com/openstack/manila/blob/master/manila_tempest_tests/utils.py#L93 > > > > OK, I guess the real question I had is why use *random* addresses. > > Because that seems like a way to end up having two tests try to use the > > same address at the same time. If that did happen, would it cause > > conflicts or race conditions for the manila tests? > > > > > > > > Doug Hellmann <[email protected] > > <mailto:[email protected]>>于2016年10月17日周一 下午10:13写道： > > > > > > > Excerpts from TommyLike Hu's message of 2016-10-17 09:56:15 +0000: > > > > > When I handle some stuff related to Manila recently, I found > > a case which > > > > > may be suitable for Oslo, Anyhow I put it in the maillist so > > it can be > > > > > discussed before I put it in action. > > > > > In testcase, we need a function(maybe 2) to generate random > > ip address > > > > (or > > > > > network), also they should in the range of [1](ipv4 > > documentation range) > > > > or > > > > > [2](ipv6 documentation range), this is the draft code for ipv4: > > > > > > > > > > import six > > > > > import random > > > > > > > > > > > > > > > def rand_ipv4(network=False): > > > > > """This uses the TEST-NET-3 range of reserved IP addresses.""" > > > > > > > > > > test_net_3 = '203.0.113.' > > > > > if network: > > > > > host_length = random.randint(0, 8) > > > > > address_segment = random.randint(0, 8 - host_length) > > > > > address_segment <<= host_length > > > > > address = test_net_3 + six.text_type(address_segment) > > > > > address = '/'.join((address, > > > > > six.text_type(32 - host_length))) > > > > > else: > > > > > address = test_net_3 + > > six.text_type(random.randint(0, 255)) > > > > > return address > > > > > > > > > > The primary use case here is writing testcases, I am not > > sure whether it > > > > > is suitable here, or maybe I misunderstood the intention of > > TEST-NET-3, > > > > > please leave any comment you like. > > > > > > > > > > > > > > > [1] https://tools.ietf.org/html/rfc5737 > > > > > [2] https://tools.ietf.org/html/rfc5156 > > > > > > > > In what way are you using random addresses in tests? > > > > > > > > Doug > > > > > > > > > > > > __________________________________________________________________________ > > > > OpenStack Development Mailing List (not for usage questions) > > > > Unsubscribe: > > [email protected]?subject:unsubscribe > > <http://[email protected]?subject:unsubscribe> > > > > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > > > > > > > > > __________________________________________________________________________ > > OpenStack Development Mailing List (not for usage questions) > > Unsubscribe: > > [email protected]?subject:unsubscribe > > <http://[email protected]?subject:unsubscribe> > > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > > > __________________________________________________________________________ > > OpenStack Development Mailing List (not for usage questions) > > Unsubscribe: [email protected]?subject:unsubscribe > > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: [email protected]?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
