def test_url_resolvable(self):
"""test_url_resolvable - Test resolving urls"""
with mock.patch.object(util, 'is_resolvable') as mockresolve:
util.is_resolvable_url("http://1.2.3.4/ubuntu")
mockresolve.assert_called_with("1.2.3.4")
with mock.patch.object(util, 'is_resolvable') as mockresolve:
util.is_resolvable_url("http://us.archive.ubuntu.com/ubuntu")
mockresolve.assert_called_with("us.archive.ubuntu.com")
bad = [(None, None, None, "badname", ["10.3.2.1"])]
good = [(None, None, None, "goodname", ["10.2.3.4"])]
with mock.patch.object(socket, 'getaddrinfo',
side_effect=[bad, bad, good,
good]) as mocksock:
ret = util.is_resolvable_url("http://us.archive.ubuntu.com/ubuntu")
ret2 = util.is_resolvable_url("http://1.2.3.4/ubuntu")
calls = [call('does-not-exist.example.com.', None, 0, 0, 1, 2),
call('example.invalid.', None, 0, 0, 1, 2),
call('us.archive.ubuntu.com', None),
call('1.2.3.4', None)]
mocksock.assert_has_calls(calls)
self.assertTrue(ret)
self.assertTrue(ret2)
# side effect need only bad ret after initial call
with mock.patch.object(socket, 'getaddrinfo',
side_effect=[bad]) as mocksock:
ret3 = util.is_resolvable_url("http://failme.com/ubuntu")
calls = [call('failme.com', None)]
mocksock.assert_has_calls(calls)
self.assertFalse(ret3)
def test_mirror_search(self):
"""test_mirror_search
Check searching through a mirror list
This is checked in the test (late) intentionally.
No matter if resolution worked or failed it shouldn't fail
fatally (python error and trace).
We just can't rely on the content to be found in that case
so we skip the check then."""
res1 = util.is_resolvable_url("http://does.not.exist/ubuntu")
res2 = util.is_resolvable_url("http://does.also.not.exist/ubuntu")
res3 = util.is_resolvable_url("http://us.archive.ubuntu.com/ubuntu")
res4 = util.is_resolvable_url("http://security.ubuntu.com/ubuntu")
if res1 or res2 or not res3 or not res4:
raise SkipTest(("Name resolution not as required"
"(%s, %s, %s, %s)" % (res1, res2, res3, res4)))
self.check_file_regex("sources.list", r"us.archive.ubuntu.com")
self.check_file_regex("sources.list", r"security.ubuntu.com")
def search_for_mirror(candidates):
"""
Search through a list of mirror urls for one that works
This needs to return quickly.
"""
if candidates is None:
return None
LOG.debug("search for mirror in candidates: '%s'", candidates)
for cand in candidates:
try:
if util.is_resolvable_url(cand):
LOG.debug("found working mirror: '%s'", cand)
return cand
except Exception:
pass
return None