diff options
Diffstat (limited to 'tests/unittests/test_util.py')
| -rw-r--r-- | tests/unittests/test_util.py | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tests/unittests/test_util.py b/tests/unittests/test_util.py index ecf8cf5c..865f202a 100644 --- a/tests/unittests/test_util.py +++ b/tests/unittests/test_util.py @@ -3026,3 +3026,18 @@ class TestVersion: ) def test_from_str(self, str_ver, cls_ver): assert util.Version.from_str(str_ver) == cls_ver + + +@pytest.mark.allow_dns_lookup +class TestResolvable: + @mock.patch.object(util, "_DNS_REDIRECT_IP", return_value=True) + @mock.patch.object(util.socket, "getaddrinfo") + def test_ips_need_not_be_resolved(self, m_getaddr, m_dns): + """Optimization test: dns resolution may timeout during early boot, and + often the urls being checked use IP addresses rather than dns names. + Therefore, the fast path checks if the address contains an IP and exits + early if the path is a valid IP. + """ + assert util.is_resolvable("http://169.254.169.254/") is True + assert util.is_resolvable("http://[fd00:ec2::254]/") is True + assert not m_getaddr.called |