1 files changed, 171 insertions, 0 deletions
diff --git a/slixmpp/test/livesocket.py b/slixmpp/test/livesocket.py
new file mode 100644
index 00000000..e7deb617
--- /dev/null
+++ b/slixmpp/test/livesocket.py
@@ -0,0 +1,171 @@
+"""
+    Slixmpp: The Slick XMPP Library
+    Copyright (C) 2010 Nathanael C. Fritz, Lance J.T. Stout
+    This file is part of Slixmpp.
+
+    See the file LICENSE for copying permission.
+"""
+
+import socket
+import threading
+from queue import Queue
+
+
+class TestLiveSocket(object):
+
+    """
+    A live test socket that reads and writes to queues in
+    addition to an actual networking socket.
+
+    Methods:
+        next_sent -- Return the next sent stanza.
+        next_recv -- Return the next received stanza.
+        recv_data -- Dummy method to have same interface as TestSocket.
+        recv      -- Read the next stanza from the socket.
+        send      -- Write a stanza to the socket.
+        makefile  -- Dummy call, returns self.
+        read      -- Read the next stanza from the socket.
+    """
+
+    def __init__(self, *args, **kwargs):
+        """
+        Create a new, live test socket.
+
+        Arguments:
+            Same as arguments for socket.socket
+        """
+        self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        self.recv_buffer = []
+        self.recv_queue = Queue()
+        self.send_queue = Queue()
+        self.send_queue_lock = threading.Lock()
+        self.recv_queue_lock = threading.Lock()
+        self.is_live = True
+
+    def __getattr__(self, name):
+        """
+        Return attribute values of internal, live socket.
+
+        Arguments:
+            name -- Name of the attribute requested.
+        """
+
+        return getattr(self.socket, name)
+
+    # ------------------------------------------------------------------
+    # Testing Interface
+
+    def disconnect_errror(self):
+        """
+        Used to simulate a socket disconnection error.
+
+        Not used by live sockets.
+        """
+        try:
+            self.socket.shutdown()
+            self.socket.close()
+        except:
+            pass
+
+    def next_sent(self, timeout=None):
+        """
+        Get the next stanza that has been sent.
+
+        Arguments:
+            timeout -- Optional timeout for waiting for a new value.
+        """
+        args = {'block': False}
+        if timeout is not None:
+            args = {'block': True, 'timeout': timeout}
+        try:
+            return self.send_queue.get(**args)
+        except:
+            return None
+
+    def next_recv(self, timeout=None):
+        """
+        Get the next stanza that has been received.
+
+        Arguments:
+            timeout -- Optional timeout for waiting for a new value.
+        """
+        args = {'block': False}
+        if timeout is not None:
+            args = {'block': True, 'timeout': timeout}
+        try:
+            if self.recv_buffer:
+                return self.recv_buffer.pop(0)
+            else:
+                return self.recv_queue.get(**args)
+        except:
+            return None
+
+    def recv_data(self, data):
+        """
+        Add data to a receive buffer for cases when more than a single stanza
+        was received.
+        """
+        self.recv_buffer.append(data)
+
+    # ------------------------------------------------------------------
+    # Socket Interface
+
+    def recv(self, *args, **kwargs):
+        """
+        Read data from the socket.
+
+        Store a copy in the receive queue.
+
+        Arguments:
+            Placeholders. Same as for socket.recv.
+        """
+        data = self.socket.recv(*args, **kwargs)
+        with self.recv_queue_lock:
+            self.recv_queue.put(data)
+        return data
+
+    def send(self, data):
+        """
+        Send data on the socket.
+
+        Store a copy in the send queue.
+
+        Arguments:
+            data -- String value to write.
+        """
+        with self.send_queue_lock:
+            self.send_queue.put(data)
+        return self.socket.send(data)
+
+    # ------------------------------------------------------------------
+    # File Socket
+
+    def makefile(self, *args, **kwargs):
+        """
+        File socket version to use with ElementTree.
+
+        Arguments:
+            Placeholders, same as socket.makefile()
+        """
+        return self
+
+    def read(self, *args, **kwargs):
+        """
+        Implement the file socket read interface.
+
+        Arguments:
+            Placeholders, same as socket.recv()
+        """
+        return self.recv(*args, **kwargs)
+
+    def clear(self):
+        """
+        Empty the send queue, typically done once the session has started to
+        remove the feature negotiation and log in stanzas.
+        """
+        with self.send_queue_lock:
+            for i in range(0, self.send_queue.qsize()):
+                self.send_queue.get(block=False)
+        with self.recv_queue_lock:
+            for i in range(0, self.recv_queue.qsize()):
+                self.recv_queue.get(block=False)