Fix socket detach helper

tests/helpers.py

@@ -2,16 +2,16 @@
 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):
@@ -119,13 +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):
-            sock.sendall(b'make sure the socket is closed\n')
-    elif isinstance(sock, paramiko.Channel):
+    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

tests/integration/api_container_test.py

@@ -1251,7 +1251,7 @@ def test_attach_no_stream(self):
         output = self.client.attach(container, stream=False, logs=True)
         assert output == 'hello\n'.encode(encoding='ascii')
 
-    @pytest.mark.timeout(5)
+    @pytest.mark.timeout(10)
     @pytest.mark.skipif(os.environ.get('DOCKER_HOST', '').startswith('ssh://'),
                         reason='No cancellable streams over SSH')
     def test_attach_stream_and_cancel(self):