refactor: extract a method to reduce complexity

Signed-off-by: Mike Fiedler <miketheman@gmail.com>

pytest_socket.py

@@ -159,17 +159,17 @@ def socket_allow_hosts(allowed=None, allow_unix_socket=False):
     if not isinstance(allowed, list):
         return
 
-    def guarded_connect(inst, *args):
-        host = host_from_connect_args(args)
-        if host in allowed:
-            return _true_connect(inst, *args)
-
+    def _is_unix_socket(inst) -> bool:
         try:
             is_unix_socket = inst.family == socket.AF_UNIX
         except AttributeError:
             # AF_UNIX not supported on Windows https://bugs.python.org/issue33408
             is_unix_socket = False
-        if allow_unix_socket and is_unix_socket:
+        return is_unix_socket
+
+    def guarded_connect(inst, *args):
+        host = host_from_connect_args(args)
+        if host in allowed or (_is_unix_socket(inst) and allow_unix_socket):
             return _true_connect(inst, *args)
 
         raise SocketConnectBlockedError(allowed, host)