Add comment to explain custom side_effect function

diff --git a/ceph_deploy/tests/unit/util/test_arg_validators.py b/ceph_deploy/tests/unit/util/test_arg_validators.py
index f0068c8875f8ee618cde8249165be35263ae4713..77b885304b2a3ef4aeef6264076f6b9041c561c8 100644 (file)
--- a/ceph_deploy/tests/unit/util/test_arg_validators.py
+++ b/ceph_deploy/tests/unit/util/test_arg_validators.py
@@ -58,6 +58,7 @@ class TestHostName(object):
         self.fake_sock.gaierror = socket.gaierror
 
         def side_effect(*args):
+                # First call passes, second call raises socket.gaierror
                 self.fake_sock.getaddrinfo.side_effect = socket.gaierror
 
         self.fake_sock.getaddrinfo.side_effect = side_effect
@@ -70,6 +71,7 @@ class TestHostName(object):
         self.fake_sock.gaierror = socket.gaierror
 
         def side_effect(*args):
+                # First call passes, second call raises socket.gaierror
                 self.fake_sock.getaddrinfo.side_effect = socket.gaierror
 
         self.fake_sock.getaddrinfo.side_effect = side_effect
@@ -82,6 +84,7 @@ class TestHostName(object):
         self.fake_sock.gaierror = socket.gaierror
 
         def side_effect(*args):
+                # First call passes, second call raises socket.gaierror
                 self.fake_sock.getaddrinfo.side_effect = socket.gaierror
 
         self.fake_sock.getaddrinfo.side_effect = side_effect