Test fileno only on posix

Author: palaviv

tests/snippets/stdlib_socket.py

@@ -24,14 +24,15 @@
 assert recv_b == MESSAGE_B
 
 # fileno
-connector_fd = connector.fileno()
-connection_fd = connection.fileno()
-os.write(connector_fd, MESSAGE_A)
-connection.send(MESSAGE_B)
-recv_a = connection.recv(len(MESSAGE_A))
-recv_b = os.read(connector_fd, (len(MESSAGE_B)))
-assert recv_a == MESSAGE_A
-assert recv_b == MESSAGE_B
+if os.name == "posix":
+	connector_fd = connector.fileno()
+	connection_fd = connection.fileno()
+	os.write(connector_fd, MESSAGE_A)
+	connection.send(MESSAGE_B)
+	recv_a = connection.recv(len(MESSAGE_A))
+	recv_b = os.read(connector_fd, (len(MESSAGE_B)))
+	assert recv_a == MESSAGE_A
+	assert recv_b == MESSAGE_B
 
 connection.close()
 connector.close()