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# 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
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