/
blocking_connection_tests.py
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/
blocking_connection_tests.py
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# -*- coding: utf8 -*-
"""
Tests for pika.adapters.blocking_connection.BlockingConnection
"""
import unittest
import mock
from mock import patch
import pika
from pika.adapters import blocking_connection
from pika.adapters.utils import nbio_interface
import pika.channel
import pika.exceptions
# Disable protected-access
# pylint: disable=W0212
# Disable missing-docstring
# pylint: disable=C0111
# Disable invalid-name
# pylint: disable=C0103
# Disable no-self-use
# pylint: disable=R0201
class BlockingConnectionMockTemplate(blocking_connection.BlockingConnection):
pass
class SelectConnectionTemplate(
blocking_connection.select_connection.SelectConnection):
is_closed = None
is_closing = None
is_open = None
_channels = None
ioloop = None
_transport = None
_get_write_buffer_size = None
class BlockingConnectionTests(unittest.TestCase):
"""TODO: test properties"""
@patch.object(
blocking_connection.select_connection,
'SelectConnection',
spec_set=SelectConnectionTemplate)
def test_constructor(self, _select_connection_class_mock):
with mock.patch.object(blocking_connection.BlockingConnection,
'_create_connection') as _create_connection_mock:
connection = blocking_connection.BlockingConnection('params')
_create_connection_mock.assert_called_once_with('params', None)
connection._impl.add_on_close_callback.assert_called_once_with(
connection._closed_result.set_value_once)
@patch.object(
blocking_connection.select_connection,
'SelectConnection',
spec_set=SelectConnectionTemplate)
def test_process_io_for_connection_setup(self,
select_connection_class_mock):
with mock.patch.object(blocking_connection.BlockingConnection,
'_create_connection'):
connection = blocking_connection.BlockingConnection('params')
mock_connection = select_connection_class_mock.return_value
with mock.patch.object(select_connection_class_mock,
'create_connection',
side_effect=
lambda configs,
on_done,
custom_ioloop: [on_done(mock_connection),
custom_ioloop.close(),
None][2]):
result = connection._create_connection(
None,
select_connection_class_mock)
self.assertIs(result, mock_connection)
@patch.object(
blocking_connection.select_connection,
'SelectConnection',
spec_set=SelectConnectionTemplate)
def test_process_io_for_connection_setup_fails_with_open_error(
self, select_connection_class_mock):
with mock.patch.object(blocking_connection.BlockingConnection,
'_create_connection'):
connection = blocking_connection.BlockingConnection('params')
exc_value = pika.exceptions.AMQPConnectionError('failed')
with mock.patch.object(select_connection_class_mock,
'create_connection',
side_effect=
lambda configs,
on_done,
custom_ioloop: on_done(exc_value)):
with self.assertRaises(pika.exceptions.AMQPConnectionError) as cm:
connection._create_connection(None,
select_connection_class_mock)
self.assertIs(cm.exception, exc_value)
@patch.object(
blocking_connection.select_connection,
'SelectConnection',
spec_set=SelectConnectionTemplate,
is_closed=False)
def test_flush_output(self, select_connection_class_mock):
impl_mock = select_connection_class_mock.return_value
with mock.patch.object(blocking_connection.BlockingConnection,
'_create_connection',
return_value=impl_mock):
connection = blocking_connection.BlockingConnection('params')
get_buffer_size_mock = mock.Mock(
name='_get_write_buffer_size',
side_effect=[100, 50, 0],
spec=nbio_interface.AbstractStreamTransport.get_write_buffer_size)
transport_mock = mock.NonCallableMock(
spec_set=nbio_interface.AbstractStreamTransport)
connection._impl._transport = transport_mock
connection._impl._get_write_buffer_size = get_buffer_size_mock
connection._flush_output(lambda: False, lambda: True)
@patch.object(
blocking_connection.select_connection,
'SelectConnection',
spec_set=SelectConnectionTemplate,
is_closed=False)
def test_flush_output_user_initiated_close(self,
select_connection_class_mock):
impl_mock = select_connection_class_mock.return_value
with mock.patch.object(blocking_connection.BlockingConnection,
'_create_connection',
return_value=impl_mock):
connection = blocking_connection.BlockingConnection('params')
original_exc = pika.exceptions.ConnectionClosedByClient(200, 'success')
connection._closed_result.set_value_once(
impl_mock, original_exc)
connection._flush_output(lambda: False, lambda: True)
self.assertEqual(connection._impl.ioloop.close.call_count, 1)
@patch.object(
blocking_connection.select_connection,
'SelectConnection',
spec_set=SelectConnectionTemplate,
is_closed=False)
def test_flush_output_server_initiated_error_close(
self, select_connection_class_mock):
impl_mock = select_connection_class_mock.return_value
with mock.patch.object(blocking_connection.BlockingConnection,
'_create_connection',
return_value=impl_mock):
connection = blocking_connection.BlockingConnection('params')
original_exc = pika.exceptions.ConnectionClosedByBroker(404,
'not found')
connection._closed_result.set_value_once(
impl_mock, original_exc)
with self.assertRaises(pika.exceptions.ConnectionClosedByBroker) as cm:
connection._flush_output(lambda: False, lambda: True)
self.assertSequenceEqual(cm.exception.args, (404, 'not found'))
self.assertEqual(connection._impl.ioloop.close.call_count, 1)
@patch.object(
blocking_connection.select_connection,
'SelectConnection',
spec_set=SelectConnectionTemplate,
is_closed=False)
def test_flush_output_server_initiated_no_error_close(
self,
select_connection_class_mock):
impl_mock = select_connection_class_mock.return_value
with mock.patch.object(blocking_connection.BlockingConnection,
'_create_connection',
return_value=impl_mock):
connection = blocking_connection.BlockingConnection('params')
original_exc = pika.exceptions.ConnectionClosedByBroker(200, 'ok')
connection._closed_result.set_value_once(
impl_mock,
original_exc)
impl_mock.is_closed = False
with self.assertRaises(pika.exceptions.ConnectionClosed) as cm:
connection._flush_output(lambda: False, lambda: True)
self.assertSequenceEqual(cm.exception.args, (200, 'ok'))
self.assertEqual(connection._impl.ioloop.close.call_count, 1)
@patch.object(
blocking_connection.select_connection,
'SelectConnection',
spec_set=SelectConnectionTemplate)
def test_close(self, select_connection_class_mock):
impl_mock = select_connection_class_mock.return_value
impl_mock.is_closed = False
with mock.patch.object(blocking_connection.BlockingConnection,
'_create_connection',
return_value=impl_mock):
connection = blocking_connection.BlockingConnection('params')
impl_channel_mock = mock.Mock()
connection._impl._channels = {1: impl_channel_mock}
with mock.patch.object(blocking_connection.BlockingConnection,
'_flush_output',
spec_set=connection._flush_output):
connection._closed_result.signal_once()
connection.close(200, 'text')
impl_channel_mock._get_cookie.return_value.close.assert_called_once_with(
200, 'text')
select_connection_class_mock.return_value.close.assert_called_once_with(
200, 'text')
@patch.object(
blocking_connection.select_connection,
'SelectConnection',
spec_set=SelectConnectionTemplate)
def test_close_with_channel_closed_exception(self,
select_connection_class_mock):
impl_mock = select_connection_class_mock.return_value
impl_mock.is_closed = False
with mock.patch.object(blocking_connection.BlockingConnection,
'_create_connection',
return_value=impl_mock):
connection = blocking_connection.BlockingConnection('params')
channel1_mock = mock.Mock(
is_open=True,
close=mock.Mock(
side_effect=pika.exceptions.ChannelClosed(-1, 'Just because'),
spec_set=pika.channel.Channel.close),
spec_set=blocking_connection.BlockingChannel)
channel2_mock = mock.Mock(
is_open=True, spec_set=blocking_connection.BlockingChannel)
connection._impl._channels = {
1:
mock.Mock(
_get_cookie=mock.Mock(
return_value=channel1_mock,
spec_set=pika.channel.Channel._get_cookie),
spec_set=pika.channel.Channel),
2:
mock.Mock(
_get_cookie=mock.Mock(
return_value=channel2_mock,
spec_set=pika.channel.Channel._get_cookie),
spec_set=pika.channel.Channel)
}
with mock.patch.object(blocking_connection.BlockingConnection,
'_flush_output',
spec_set=connection._flush_output):
connection._closed_result.signal_once()
connection.close(200, 'text')
channel1_mock.close.assert_called_once_with(200, 'text')
channel2_mock.close.assert_called_once_with(200, 'text')
impl_mock.close.assert_called_once_with(200, 'text')
@patch.object(
blocking_connection.select_connection,
'SelectConnection',
spec_set=SelectConnectionTemplate)
@patch.object(
blocking_connection,
'BlockingChannel',
spec_set=blocking_connection.BlockingChannel)
def test_channel(
self,
blocking_channel_class_mock, # pylint: disable=W0613
select_connection_class_mock): # pylint: disable=W0613
impl_mock = select_connection_class_mock.return_value
with mock.patch.object(blocking_connection.BlockingConnection,
'_create_connection',
return_value=impl_mock):
connection = blocking_connection.BlockingConnection('params')
with mock.patch.object(blocking_connection.BlockingConnection,
'_flush_output',
spec_set=connection._flush_output):
connection.channel()
@patch.object(
blocking_connection.select_connection,
'SelectConnection',
spec_set=SelectConnectionTemplate)
def test_sleep(self, select_connection_class_mock): # pylint: disable=W0613
with mock.patch.object(blocking_connection.BlockingConnection,
'_create_connection'):
connection = blocking_connection.BlockingConnection('params')
with mock.patch.object(blocking_connection.BlockingConnection,
'_flush_output',
spec_set=connection._flush_output):
connection.sleep(0.00001)
def test_connection_blocked_evt(self):
blocked_buffer = []
frame = pika.frame.Method(0, pika.spec.Connection.Blocked('reason'))
evt = blocking_connection._ConnectionBlockedEvt(
blocked_buffer.append,
frame)
repr(evt)
evt.dispatch()
self.assertEqual(len(blocked_buffer), 1)
self.assertIs(blocked_buffer[0], frame)
def test_connection_unblocked_evt(self):
unblocked_buffer = []
frame = pika.frame.Method(0, pika.spec.Connection.Unblocked())
evt = blocking_connection._ConnectionUnblockedEvt(
unblocked_buffer.append,
frame)
repr(evt)
evt.dispatch()
self.assertEqual(len(unblocked_buffer), 1)
self.assertIs(unblocked_buffer[0], frame)