diff --git a/test/00/source.py b/test/00/source.py
new file mode 100644
index 0000000..4b01e6d
--- /dev/null
+++ b/test/00/source.py
@@ -0,0 +1,24 @@
+import socket
+import sys
+import array
+skname = sys.argv[1]
+
+sk = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
+sk.bind(skname)
+sk.listen()
+clsock, _addrinfo = sk.accept()
+#clsock.setsockopt(socket.SOL_SOCKET, socket.SO????
+passwd = open('/etc/passwd')
+clsock.sendmsg([b'hi!'],
+	[(socket.SOL_SOCKET, socket.SCM_RIGHTS, array.array('i', [passwd.fileno()]))],
+	)
+print('-------------------')
+data, anc, _flags, _addr = clsock.recvmsg(100, 100)
+print(data.decode())
+_level, _type, fdarr = anc[0]
+arr = array.array('i')
+arr.frombytes(fdarr)
+f = open(arr[0])
+print(next(f))
+
+sk.close()
diff --git a/test/00/target.py b/test/00/target.py
new file mode 100644
index 0000000..001b0a2
--- /dev/null
+++ b/test/00/target.py
@@ -0,0 +1,20 @@
+import socket
+import sys
+import array
+skname = sys.argv[1]
+
+sk = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
+sk.connect(skname)
+data, anc, _flags, _addr = sk.recvmsg(100, 100)
+print(data.decode())
+_level, _type, fdarr = anc[0]
+arr = array.array('i')
+arr.frombytes(fdarr)
+f = open(arr[0])
+print(next(f))
+input('reply?')
+protos = open('/etc/protocols')
+sk.sendmsg([b'hello!'],
+	[(socket.SOL_SOCKET, socket.SCM_RIGHTS, array.array('i', [protos.fileno()]))],
+	)
+sk.close()