1 files changed, 14 insertions, 5 deletions
diff --git a/tests/helpers.py b/tests/helpers.py
index b36d6d7..f344e1c 100644
--- a/tests/helpers.py
+++ b/tests/helpers.py
@@ -2,15 +2,16 @@ import functools
 import os
 import os.path
 import random
+import re
+import socket
 import tarfile
 import tempfile
 import time
-import re
-import six
-import socket
 
 import docker
+import paramiko
 import pytest
+import six
 
 
 def make_tree(dirs, files):
@@ -118,10 +119,18 @@ def assert_cat_socket_detached_with_keys(sock, inputs):
     # If we're using a Unix socket, the sock.send call will fail with a
     # BrokenPipeError ; INET sockets will just stop receiving / sending data
     # but will not raise an error
-    if getattr(sock, 'family', -9) == getattr(socket, 'AF_UNIX', -1):
-        with pytest.raises(socket.error):
+    if isinstance(sock, paramiko.Channel):
+        with pytest.raises(OSError):
             sock.sendall(b'make sure the socket is closed\n')
     else:
+        if getattr(sock, 'family', -9) == getattr(socket, 'AF_UNIX', -1):
+            # We do not want to use pytest.raises here because future versions
+            # of the daemon no longer cause this to raise an error.
+            try:
+                sock.sendall(b'make sure the socket is closed\n')
+            except socket.error:
+                return
+
         sock.sendall(b"make sure the socket is closed\n")
         data = sock.recv(128)
         # New in 18.06: error message is broadcast over the socket when reading