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from unittest.mock import Mock, patch, sentinel
import pytest
from vine import promise
from amqp import spec
from amqp.abstract_channel import (IGNORED_METHOD_DURING_CHANNEL_CLOSE,
AbstractChannel)
from amqp.exceptions import AMQPNotImplementedError, RecoverableConnectionError
from amqp.serialization import dumps
class test_AbstractChannel:
class Channel(AbstractChannel):
def _setup_listeners(self):
pass
@pytest.fixture(autouse=True)
def setup_conn(self):
self.conn = Mock(name='connection')
self.conn.channels = {}
self.channel_id = 1
self.c = self.Channel(self.conn, self.channel_id)
self.method = Mock(name='method')
self.content = Mock(name='content')
self.content.content_encoding = 'utf-8'
self.c._METHODS = {(50, 61): self.method}
def test_enter_exit(self):
self.c.close = Mock(name='close')
with self.c:
pass
self.c.close.assert_called_with()
def test_send_method(self):
self.c.send_method((50, 60), 'iB', (30, 0))
self.conn.frame_writer.assert_called_with(
1, self.channel_id, (50, 60), dumps('iB', (30, 0)), None,
)
def test_send_method__callback(self):
callback = Mock(name='callback')
p = promise(callback)
self.c.send_method((50, 60), 'iB', (30, 0), callback=p)
callback.assert_called_with()
def test_send_method__wait(self):
self.c.wait = Mock(name='wait')
self.c.send_method((50, 60), 'iB', (30, 0), wait=(50, 61))
self.c.wait.assert_called_with((50, 61), returns_tuple=False)
def test_send_method__no_connection(self):
self.c.connection = None
with pytest.raises(RecoverableConnectionError):
self.c.send_method((50, 60))
def test_send_method__connection_dropped(self):
self.c.connection.frame_writer.side_effect = StopIteration
with pytest.raises(RecoverableConnectionError):
self.c.send_method((50, 60))
def test_close(self):
with pytest.raises(NotImplementedError):
self.c.close()
def test_wait(self):
with patch('amqp.abstract_channel.ensure_promise') as ensure_promise:
p = ensure_promise.return_value
p.ready = False
def on_drain(*args, **kwargs):
p.ready = True
self.conn.drain_events.side_effect = on_drain
p.value = (1,), {'arg': 2}
self.c.wait((50, 61), timeout=1)
self.conn.drain_events.assert_called_with(timeout=1)
prev = self.c._pending[(50, 61)] = Mock(name='p2')
p.value = None
self.c.wait([(50, 61)])
assert self.c._pending[(50, 61)] is prev
def test_dispatch_method__content_encoding(self):
self.c.auto_decode = True
self.method.args = None
self.c.dispatch_method((50, 61), 'payload', self.content)
self.content.body.decode.side_effect = KeyError()
self.c.dispatch_method((50, 61), 'payload', self.content)
def test_dispatch_method__unknown_method(self):
with pytest.raises(AMQPNotImplementedError):
self.c.dispatch_method((100, 131), 'payload', self.content)
def test_dispatch_method__one_shot(self):
self.method.args = None
p = self.c._pending[(50, 61)] = Mock(name='oneshot')
self.c.dispatch_method((50, 61), 'payload', self.content)
p.assert_called_with((50, 61), self.content)
def test_dispatch_method__one_shot_no_content(self):
self.method.args = None
self.method.content = None
p = self.c._pending[(50, 61)] = Mock(name='oneshot')
self.c.dispatch_method((50, 61), 'payload', self.content)
p.assert_called_with((50, 61))
assert not self.c._pending
def test_dispatch_method__listeners(self):
with patch('amqp.abstract_channel.loads') as loads:
loads.return_value = [1, 2, 3], 'foo'
p = self.c._callbacks[(50, 61)] = Mock(name='p')
self.c.dispatch_method((50, 61), 'payload', self.content)
p.assert_called_with(1, 2, 3, self.content)
def test_dispatch_method__listeners_and_one_shot(self):
with patch('amqp.abstract_channel.loads') as loads:
loads.return_value = [1, 2, 3], 'foo'
p1 = self.c._callbacks[(50, 61)] = Mock(name='p')
p2 = self.c._pending[(50, 61)] = Mock(name='oneshot')
self.c.dispatch_method((50, 61), 'payload', self.content)
p1.assert_called_with(1, 2, 3, self.content)
p2.assert_called_with((50, 61), 1, 2, 3, self.content)
assert not self.c._pending
assert self.c._callbacks[(50, 61)]
@pytest.mark.parametrize(
"method",
(
spec.Channel.Close,
spec.Channel.CloseOk,
spec.Basic.Deliver
)
)
def test_dispatch_method__closing_connection(self, method, caplog):
self.c._ALLOWED_METHODS_WHEN_CLOSING = (
spec.Channel.Close, spec.Channel.CloseOk
)
self.c.is_closing = True
with patch.object(self.c, '_METHODS'), \
patch.object(self.c, '_callbacks'):
self.c.dispatch_method(
method, sentinel.PAYLOAD, sentinel.CONTENT
)
if method in (spec.Channel.Close, spec.Channel.CloseOk):
self.c._METHODS.__getitem__.assert_called_once_with(method)
self.c._callbacks[method].assert_called_once_with(
sentinel.CONTENT
)
else:
self.c._METHODS.__getitem__.assert_not_called()
self.c._callbacks[method].assert_not_called()
assert caplog.records[0].msg == \
IGNORED_METHOD_DURING_CHANNEL_CLOSE
assert caplog.records[0].args[0] == method
assert caplog.records[0].args[1] == self.channel_id
assert caplog.records[0].levelname == 'WARNING'
|
