diff --git a/tests/utils/network_test.py b/tests/utils/network_test.py
index 6217e910..5a753f6e 100644
--- a/tests/utils/network_test.py
+++ b/tests/utils/network_test.py
@@ -1,3 +1,4 @@
+import mock
 import unittest
 
 from mopidy.utils import network
@@ -17,3 +18,20 @@ class FormatHostnameTest(unittest.TestCase):
     def test_format_hostname_does_nothing_when_only_ipv4_available(self):
         network.has_ipv6 = False
         self.assertEquals(network.format_hostname('0.0.0.0'), '0.0.0.0')
+
+class TryIPv6SocketTest(unittest.TestCase):
+    @mock.patch('socket.has_ipv6', False)
+    def test_system_that_claims_no_ipv6_support(self):
+        self.assertFalse(network._try_ipv6_socket())
+
+    @mock.patch('socket.has_ipv6', True)
+    @mock.patch('socket.socket')
+    def test_system_with_broken_ipv6(self, socket_mock):
+        socket_mock.side_effect = IOError()
+        self.assertFalse(network._try_ipv6_socket())
+
+    @mock.patch('socket.has_ipv6', True)
+    @mock.patch('socket.socket')
+    def test_with_working_ipv6(self, socket_mock):
+        socket_mock.return_value = mock.Mock()
+        self.assertTrue(network._try_ipv6_socket())