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import asyncio
import asynctest
from . import testcase
from .. import exceptions
from ..properties import Properties
class ConsumeTestCase(testcase.RabbitTestCaseMixin, asynctest.TestCase):
_multiprocess_can_split_ = True
def setUp(self):
super().setUp()
self.consume_future = asyncio.Future()
async def callback(self, channel, body, envelope, properties):
self.consume_future.set_result((body, envelope, properties))
async def get_callback_result(self):
await self.consume_future
result = self.consume_future.result()
self.consume_future = asyncio.Future()
return result
async def test_consume(self):
# declare
await self.channel.queue_declare("q", exclusive=True, no_wait=False)
await self.channel.exchange_declare("e", "fanout")
await self.channel.queue_bind("q", "e", routing_key='')
# get a different channel
channel = await self.create_channel()
# publish
await channel.publish("coucou", "e", routing_key='',)
# start consume
await channel.basic_consume(self.callback, queue_name="q")
# get one
body, envelope, properties = await self.get_callback_result()
self.assertIsNotNone(envelope.consumer_tag)
self.assertIsNotNone(envelope.delivery_tag)
self.assertEqual(b"coucou", body)
self.assertIsInstance(properties, Properties)
async def test_big_consume(self):
# declare
await self.channel.queue_declare("q", exclusive=True, no_wait=False)
await self.channel.exchange_declare("e", "fanout")
await self.channel.queue_bind("q", "e", routing_key='')
# get a different channel
channel = await self.create_channel()
# publish
await channel.publish("a"*1000000, "e", routing_key='',)
# start consume
await channel.basic_consume(self.callback, queue_name="q")
# get one
body, envelope, properties = await self.get_callback_result()
self.assertIsNotNone(envelope.consumer_tag)
self.assertIsNotNone(envelope.delivery_tag)
self.assertEqual(b"a"*1000000, body)
self.assertIsInstance(properties, Properties)
async def test_consume_multiple_queues(self):
await self.channel.queue_declare("q1", exclusive=True, no_wait=False)
await self.channel.queue_declare("q2", exclusive=True, no_wait=False)
await self.channel.exchange_declare("e", "direct")
await self.channel.queue_bind("q1", "e", routing_key="q1")
await self.channel.queue_bind("q2", "e", routing_key="q2")
# get a different channel
channel = await self.create_channel()
q1_future = asyncio.Future()
async def q1_callback(channel, body, envelope, properties):
q1_future.set_result((body, envelope, properties))
q2_future = asyncio.Future()
async def q2_callback(channel, body, envelope, properties):
q2_future.set_result((body, envelope, properties))
# start consumers
result = await channel.basic_consume(q1_callback, queue_name="q1")
ctag_q1 = result['consumer_tag']
result = await channel.basic_consume(q2_callback, queue_name="q2")
ctag_q2 = result['consumer_tag']
# put message in q1
await channel.publish("coucou1", "e", "q1")
# get it
body1, envelope1, properties1 = await q1_future
self.assertEqual(ctag_q1, envelope1.consumer_tag)
self.assertIsNotNone(envelope1.delivery_tag)
self.assertEqual(b"coucou1", body1)
self.assertIsInstance(properties1, Properties)
# put message in q2
await channel.publish("coucou2", "e", "q2")
# get it
body2, envelope2, properties2 = await q2_future
self.assertEqual(ctag_q2, envelope2.consumer_tag)
self.assertEqual(b"coucou2", body2)
self.assertIsInstance(properties2, Properties)
# close consuming
await asyncio.gather(self.channel.basic_cancel(ctag_q1),
self.channel.basic_cancel(ctag_q2))
async def test_duplicate_consumer_tag(self):
await self.channel.queue_declare("q1", exclusive=True, no_wait=False)
await self.channel.queue_declare("q2", exclusive=True, no_wait=False)
await self.channel.basic_consume(self.callback, queue_name="q1", consumer_tag='tag')
with self.assertRaises(exceptions.ChannelClosed) as cm:
await self.channel.basic_consume(self.callback, queue_name="q2", consumer_tag='tag')
self.assertEqual(cm.exception.code, 530)
async def test_consume_callaback_synced(self):
# declare
await self.channel.queue_declare("q", exclusive=True, no_wait=False)
await self.channel.exchange_declare("e", "fanout")
await self.channel.queue_bind("q", "e", routing_key='')
# get a different channel
channel = await self.create_channel()
# publish
await channel.publish("coucou", "e", routing_key='',)
sync_future = asyncio.Future()
async def callback(channel, body, envelope, properties):
self.assertTrue(sync_future.done())
await channel.basic_consume(callback, queue_name="q")
sync_future.set_result(True)
async def test_consume_multiple_queues_using_gather(self):
await asyncio.gather(self.channel.queue_declare("q1", exclusive=True, no_wait=False),
self.channel.queue_declare("q2", exclusive=True, no_wait=False))
await asyncio.gather(self.channel.exchange_declare("e", "direct"),
self.channel.exchange_declare("f", "direct"))
await asyncio.gather(self.channel.queue_bind("q1", "e", routing_key="q1"),
self.channel.queue_bind("q2", "e", routing_key="q2"))
# get a different channel
channel = await self.create_channel()
q1_future = asyncio.Future()
async def q1_callback(channel, body, envelope, properties):
q1_future.set_result((body, envelope, properties))
q2_future = asyncio.Future()
async def q2_callback(channel, body, envelope, properties):
q2_future.set_result((body, envelope, properties))
# start consumers
results = await asyncio.gather(channel.basic_consume(q1_callback, queue_name="q1"),
channel.basic_consume(q2_callback, queue_name="q2"))
ctag_q1 = results[0]['consumer_tag']
ctag_q2 = results[1]['consumer_tag']
# put message in q1 and q2
await asyncio.gather(channel.publish("coucou1", "e", "q1"),
channel.publish("coucou2", "e", "q2"))
# get it
body1, envelope1, properties1 = await q1_future
self.assertEqual(ctag_q1, envelope1.consumer_tag)
self.assertIsNotNone(envelope1.delivery_tag)
self.assertEqual(b"coucou1", body1)
self.assertIsInstance(properties1, Properties)
# get it
body2, envelope2, properties2 = await q2_future
self.assertEqual(ctag_q2, envelope2.consumer_tag)
self.assertEqual(b"coucou2", body2)
self.assertIsInstance(properties2, Properties)
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