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# coding: utf-8
from __future__ import absolute_import
from six.moves import xrange
import socket
import unittest
from array import array
import time
from librabbitmq import Message, Connection, ConnectionError, ChannelError
TEST_QUEUE = 'pyrabbit.testq'
class test_Connection(unittest.TestCase):
def test_connection_defaults(self):
"""Test making a connection with the default settings."""
with Connection() as connection:
self.assertGreaterEqual(connection.fileno(), 0)
def test_connection_invalid_host(self):
"""Test connection to an invalid host fails."""
# Will fail quickly as OS will reject it.
with self.assertRaises(ConnectionError):
Connection(host="255.255.255.255")
def test_connection_invalid_port(self):
"""Test connection to an invalid port fails."""
# Will fail quickly as OS will reject it.
with self.assertRaises(ConnectionError):
Connection(port=0)
def test_connection_timeout(self):
"""Test connection timeout."""
# Can't rely on local OS being configured to ignore SYN packets
# (OS would normally reply with RST to closed port). To test the
# timeout, need to connect to something that is either slow, or
# never responds.
start_time = time.time()
with self.assertRaises(ConnectionError):
Connection(host="google.com", port=81, connect_timeout=3)
took_time = time.time() - start_time
# Allow some leaway to avoid spurious test failures.
self.assertGreaterEqual(took_time, 2)
self.assertLessEqual(took_time, 4)
def test_get_free_channel_id(self):
with Connection() as connection:
assert connection._get_free_channel_id() == 1
assert connection._get_free_channel_id() == 2
def test_get_free_channel_id__channels_full(self):
with Connection() as connection:
for _ in range(connection.channel_max):
connection._get_free_channel_id()
with self.assertRaises(ConnectionError):
connection._get_free_channel_id()
def test_channel(self):
with Connection() as connection:
self.assertEqual(connection._used_channel_ids, array('H'))
connection.channel()
self.assertEqual(connection._used_channel_ids, array('H', (1,)))
class test_Channel(unittest.TestCase):
def setUp(self):
self.connection = Connection(host='localhost:5672', userid='guest',
password='guest', virtual_host='/')
self.channel = self.connection.channel()
self.channel.queue_delete(TEST_QUEUE)
self._queue_declare()
def test_send_message(self):
message = Message(
channel=self.channel,
body='the quick brown fox jumps over the lazy dog',
properties=dict(content_type='application/json',
content_encoding='utf-8'))
self.channel.basic_publish(message, TEST_QUEUE, TEST_QUEUE)
self.channel.basic_publish(message, TEST_QUEUE, TEST_QUEUE)
self.channel.basic_publish(message, TEST_QUEUE, TEST_QUEUE)
self.assertGreater(self.channel.queue_purge(TEST_QUEUE), 2)
self.channel.basic_publish(message, TEST_QUEUE, TEST_QUEUE)
self.channel.basic_publish(message, TEST_QUEUE, TEST_QUEUE)
def test_nonascii_headers(self):
message = Message(
channel=self.channel,
body='the quick brown fox jumps over the lazy dog',
properties=dict(content_type='application/json',
content_encoding='utf-8',
headers={'key': r'¯\_(ツ)_/¯'}))
self.channel.basic_publish(message, TEST_QUEUE, TEST_QUEUE)
def _queue_declare(self):
self.channel.exchange_declare(TEST_QUEUE, 'direct')
x = self.channel.queue_declare(TEST_QUEUE)
self.assertEqual(x.message_count, x[1])
self.assertEqual(x.consumer_count, x[2])
self.assertEqual(x.queue, TEST_QUEUE)
self.channel.queue_bind(TEST_QUEUE, TEST_QUEUE, TEST_QUEUE)
def test_basic_get_ack(self):
message = Message(
channel=self.channel,
body='the quick brown fox jumps over the lazy dog',
properties=dict(content_type='application/json',
content_encoding='utf-8'))
self.channel.basic_publish(message, TEST_QUEUE, TEST_QUEUE)
self.channel.basic_publish(message, TEST_QUEUE, TEST_QUEUE)
self.channel.basic_publish(message, TEST_QUEUE, TEST_QUEUE)
while True:
x = self.channel.basic_get(TEST_QUEUE)
if x:
break
self.assertIs(self.channel, x.channel)
self.assertIn('message_count', x.delivery_info)
self.assertIn('redelivered', x.delivery_info)
self.assertEqual(x.delivery_info['routing_key'], TEST_QUEUE)
self.assertEqual(x.delivery_info['exchange'], TEST_QUEUE)
self.assertTrue(x.delivery_info['delivery_tag'])
self.assertTrue(x.properties['content_type'])
self.assertTrue(x.body)
x.ack()
def test_timeout_burst(self):
"""Check that if we have a large burst of messages in our queue
that we can fetch them with a timeout without needing to receive
any more messages."""
message = Message(
channel=self.channel,
body='the quick brown fox jumps over the lazy dog',
properties=dict(content_type='application/json',
content_encoding='utf-8'))
for i in xrange(100):
self.channel.basic_publish(message, TEST_QUEUE, TEST_QUEUE)
messages = []
def cb(x):
messages.append(x)
x.ack()
self.channel.basic_consume(TEST_QUEUE, callback=cb)
for i in xrange(100):
self.connection.drain_events(timeout=0.2)
self.assertEqual(len(messages), 100)
def test_timeout(self):
"""Check that our ``drain_events`` call actually times out if
there are no messages."""
message = Message(
channel=self.channel,
body='the quick brown fox jumps over the lazy dog',
properties=dict(content_type='application/json',
content_encoding='utf-8'))
self.channel.basic_publish(message, TEST_QUEUE, TEST_QUEUE)
messages = []
def cb(x):
messages.append(x)
x.ack()
self.channel.basic_consume(TEST_QUEUE, callback=cb)
self.connection.drain_events(timeout=0.1)
with self.assertRaises(socket.timeout):
self.connection.drain_events(timeout=0.1)
self.assertEqual(len(messages), 1)
def test_close(self):
self.assertEqual(self.connection._used_channel_ids, array('H', (1,)))
self.channel.close()
self.channel = None
self.assertEqual(self.connection._used_channel_ids, array('H'))
def tearDown(self):
if self.channel and self.connection.connected:
self.channel.queue_purge(TEST_QUEUE)
self.channel.close()
if self.connection:
try:
self.connection.close()
except ConnectionError:
pass
class test_Delete(unittest.TestCase):
def setUp(self):
self.connection = Connection(host='localhost:5672', userid='guest',
password='guest', virtual_host='/')
self.channel = self.connection.channel()
self.TEST_QUEUE = 'pyrabbitmq.testq2'
self.channel.queue_delete(self.TEST_QUEUE)
def test_delete(self):
"""Test that we can declare a channel delete it, and then declare with
different properties"""
self.channel.exchange_declare(self.TEST_QUEUE, 'direct')
self.channel.queue_declare(self.TEST_QUEUE)
self.channel.queue_bind(
self.TEST_QUEUE, self.TEST_QUEUE, self.TEST_QUEUE,
)
# Delete the queue
self.channel.queue_delete(self.TEST_QUEUE)
# Declare it again
x = self.channel.queue_declare(self.TEST_QUEUE, durable=True)
self.assertEqual(x.queue, self.TEST_QUEUE)
self.channel.queue_delete(self.TEST_QUEUE)
def test_delete_empty(self):
"""Test that the queue doesn't get deleted if it is not empty"""
self.channel.exchange_declare(self.TEST_QUEUE, 'direct')
self.channel.queue_declare(self.TEST_QUEUE)
self.channel.queue_bind(self.TEST_QUEUE, self.TEST_QUEUE,
self.TEST_QUEUE)
message = Message(
channel=self.channel,
body='the quick brown fox jumps over the lazy dog',
properties=dict(content_type='application/json',
content_encoding='utf-8'))
self.channel.basic_publish(message, self.TEST_QUEUE, self.TEST_QUEUE)
with self.assertRaises(ChannelError):
self.channel.queue_delete(self.TEST_QUEUE, if_empty=True)
# We need to make a new channel after a ChannelError
self.channel = self.connection.channel()
x = self.channel.basic_get(self.TEST_QUEUE)
self.assertTrue(x.body)
self.channel.queue_delete(self.TEST_QUEUE, if_empty=True)
def tearDown(self):
if self.channel and self.connection.connected:
self.channel.queue_purge(TEST_QUEUE)
self.channel.close()
if self.connection:
try:
self.connection.close()
except ConnectionError:
pass
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