cephadm: add unit test for get_ipv6_address

I wanted to modify this function slightly
to try to make both black and flake8 happy
with it, so adding a unit test to make sure
I don't break it.

Signed-off-by: Adam King <adking@redhat.com>

diff --git a/src/cephadm/tests/test_networks.py b/src/cephadm/tests/test_networks.py
index 8d888468b6e46bbdba968986ae6d2bdb4d19e8b0..83b908c14572c2e340f011301a18ae8190a63c3a 100644 (file)
--- a/src/cephadm/tests/test_networks.py
+++ b/src/cephadm/tests/test_networks.py
@@ -7,6 +7,7 @@ import pytest
 from tests.fixtures import with_cephadm_ctx, cephadm_fs, import_cephadm
 
 from cephadmlib.host_facts import _parse_ipv4_route, _parse_ipv6_route
+from cephadmlib.net_utils import get_ipv6_address
 
 _cephadm = import_cephadm()
 
@@ -226,6 +227,19 @@ class TestCommandListNetworks:
     def test_parse_ipv6_route(self, test_routes, test_ips, expected):
         assert _parse_ipv6_route(test_routes, test_ips) == expected
 
+    @mock.patch('cephadmlib.net_utils.read_file')
+    def test_get_ipv6_addr(self, _read_file):
+        proc_net_if_net6 = """fe80000000000000505400fffe347999 02 40 20 80     eth0
+fe80000000000000505400fffe04c154 03 40 20 80     eth1
+00000000000000000000000000000001 01 80 10 80       lo"""
+        _read_file.return_value = proc_net_if_net6
+
+        ipv6_addr = get_ipv6_address('eth0')
+        assert ipv6_addr == 'fe80::5054:ff:fe34:7999/64'
+
+        ipv6_addr = get_ipv6_address('eth1')
+        assert ipv6_addr == 'fe80::5054:ff:fe04:c154/64'
+
     @mock.patch('cephadmlib.host_facts.call_throws')
     @mock.patch('cephadmlib.host_facts.find_executable')
     def test_command_list_networks(self, _find_exe, _call_throws, cephadm_fs, capsys):