added listener support to queues, also added support for non version specific tests

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@542955 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 76 insertions, 0 deletions

diff --git a/python/tests/queue.py b/python/tests/queue.py
new file mode 100644
index 0000000000..d2e495d207
--- /dev/null
+++ b/python/tests/queue.py
@@ -0,0 +1,76 @@
+# Do not delete - marks this directory as a python package.
+
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+import threading, time
+from unittest import TestCase
+from qpid.queue import Queue, Empty, Closed
+
+
+class QueueTest (TestCase):
+
+  # The qpid queue class just provides sime simple extensions to
+  # python's standard queue data structure, so we don't need to test
+  # all the queue functionality.
+
+  def test_listen(self):
+    LISTEN = object()
+    GET = object()
+    EMPTY = object()
+
+    q = Queue(0)
+    values = []
+    q.listen(lambda x: values.append((LISTEN, x)))
+    q.put(1)
+    assert values[-1] == (LISTEN, 1)
+    q.put(2)
+    assert values[-1] == (LISTEN, 2)
+
+    class Getter(threading.Thread):
+
+      def run(self):
+        try:
+          values.append((GET, q.get(timeout=10)))
+        except Empty:
+          values.append(EMPTY)
+
+    g = Getter()
+    g.start()
+    # let the other thread reach the get
+    time.sleep(2)
+    q.put(3)
+    g.join()
+
+    assert values[-1] == (GET, 3)
+
+    q.put(4)
+    assert values[-1] == (LISTEN, 4)
+
+  def test_close(self):
+    q = Queue(0)
+    q.put(1); q.put(2); q.put(3); q.close()
+    assert q.get() == 1
+    assert q.get() == 2
+    assert q.get() == 3
+    for i in range(10):
+      try:
+        q.get()
+        raise AssertionError("expected Closed")
+      except Closed:
+        pass