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# -*- coding: utf8 -*-
"""
Tests for pika.callback
"""
import logging
import mock
try:
import unittest2 as unittest
except ImportError:
import unittest
from pika import amqp_object
from pika import callback
from pika import frame
from pika import spec
class CallbackTests(unittest.TestCase):
KEY = 'Test Key'
ARGUMENTS = callback.CallbackManager.ARGUMENTS
CALLS = callback.CallbackManager.CALLS
CALLBACK = callback.CallbackManager.CALLBACK
ONE_SHOT = callback.CallbackManager.ONE_SHOT
ONLY_CALLER = callback.CallbackManager.ONLY_CALLER
PREFIX_CLASS = spec.Basic.Consume
PREFIX = 'Basic.Consume'
ARGUMENTS_VALUE = {'foo': 'bar'}
@property
def _callback_dict(self):
return {self.CALLBACK: self.callback_mock,
self.ONE_SHOT: True,
self.ONLY_CALLER: self.mock_caller,
self.ARGUMENTS: self.ARGUMENTS_VALUE,
self.CALLS: 1}
def setUp(self):
self.obj = callback.CallbackManager()
self.callback_mock = mock.Mock()
self.mock_caller = mock.Mock()
def tearDown(self):
del self.obj
del self.callback_mock
del self.mock_caller
def test_initialization(self):
obj = callback.CallbackManager()
self.assertDictEqual(obj._stack, {})
def test_name_or_value_method_object(self):
value = spec.Basic.Consume()
self.assertEqual(callback._name_or_value(value), self.PREFIX)
def test_name_or_value_basic_consume_object(self):
self.assertEqual(callback._name_or_value(spec.Basic.Consume()),
self.PREFIX)
def test_name_or_value_amqpobject_class(self):
self.assertEqual(callback._name_or_value(self.PREFIX_CLASS),
self.PREFIX)
def test_name_or_value_protocol_header(self):
self.assertEqual(callback._name_or_value(frame.ProtocolHeader()),
'ProtocolHeader')
def test_name_or_value_method_frame(self):
value = frame.Method(1, self.PREFIX_CLASS())
self.assertEqual(callback._name_or_value(value), self.PREFIX)
def test_name_or_value_str(self):
value = 'Test String Value'
expectation = value
self.assertEqual(callback._name_or_value(value), expectation)
def test_name_or_value_unicode(self):
value = u'Это тест значения'
expectation = ('\xd0\xad\xd1\x82\xd0\xbe \xd1\x82\xd0\xb5\xd1\x81\xd1'
'\x82 \xd0\xb7\xd0\xbd\xd0\xb0\xd1\x87\xd0\xb5\xd0\xbd'
'\xd0\xb8\xd1\x8f')
self.assertEqual(callback._name_or_value(value), expectation)
def test_empty_callbacks_on_init(self):
self.assertFalse(self.obj._stack)
def test_sanitize_decorator_with_args_only(self):
self.obj.add(self.PREFIX_CLASS, self.KEY, None)
self.assertIn(self.PREFIX, self.obj._stack.keys())
def test_sanitize_decorator_with_kwargs(self):
self.obj.add(prefix=self.PREFIX_CLASS, key=self.KEY, callback=None)
self.assertIn(self.PREFIX, self.obj._stack.keys())
def test_sanitize_decorator_with_mixed_args_and_kwargs(self):
self.obj.add(self.PREFIX_CLASS, key=self.KEY, callback=None)
self.assertIn(self.PREFIX, self.obj._stack.keys())
def test_add_first_time_prefix_added(self):
self.obj.add(self.PREFIX, self.KEY, None)
self.assertIn(self.PREFIX, self.obj._stack)
def test_add_first_time_key_added(self):
self.obj.add(self.PREFIX, self.KEY, None)
self.assertIn(self.KEY, self.obj._stack[self.PREFIX])
def test_add_first_time_callback_added(self):
self.obj.add(self.PREFIX, self.KEY, self.callback_mock)
self.assertEqual(self.callback_mock,
self.obj._stack[self.PREFIX][self.KEY][0][self.CALLBACK])
def test_add_oneshot_default_is_true(self):
self.obj.add(self.PREFIX, self.KEY, None)
self.assertTrue(self.obj._stack[self.PREFIX][self.KEY][0][self.ONE_SHOT])
def test_add_oneshot_is_false(self):
self.obj.add(self.PREFIX, self.KEY, None, False)
self.assertFalse(self.obj._stack[self.PREFIX][self.KEY][0][self.ONE_SHOT])
def test_add_only_caller_default_is_false(self):
self.obj.add(self.PREFIX, self.KEY, None)
self.assertFalse(self.obj._stack[self.PREFIX][self.KEY][0][self.ONLY_CALLER])
def test_add_only_caller_true(self):
self.obj.add(self.PREFIX, self.KEY, None, only_caller=True)
self.assertTrue(self.obj._stack[self.PREFIX][self.KEY][0][self.ONLY_CALLER])
def test_add_returns_prefix_value_and_key(self):
self.assertEqual(self.obj.add(self.PREFIX, self.KEY, None),
(self.PREFIX, self.KEY))
def test_add_duplicate_callback(self):
mock_callback = mock.Mock()
def add_callback():
self.obj.add(self.PREFIX, self.KEY, mock_callback, False)
with mock.patch('pika.callback.LOGGER', spec=logging.Logger) as logger:
logger.warning = mock.Mock()
add_callback()
add_callback()
DUPLICATE_WARNING = callback.CallbackManager.DUPLICATE_WARNING
logger.warning.assert_called_once_with(DUPLICATE_WARNING,
self.PREFIX, self.KEY)
def test_add_duplicate_callback_returns_prefix_value_and_key(self):
self.obj.add(self.PREFIX, self.KEY, None)
self.assertEqual(self.obj.add(self.PREFIX, self.KEY, None),
(self.PREFIX, self.KEY))
def test_clear(self):
self.obj.add(self.PREFIX, self.KEY, None)
self.obj.clear()
self.assertDictEqual(self.obj._stack, dict())
def test_cleanup_removes_prefix(self):
OTHER_PREFIX = 'Foo'
self.obj.add(self.PREFIX, self.KEY, None)
self.obj.add(OTHER_PREFIX, 'Bar', None)
self.obj.cleanup(self.PREFIX)
self.assertNotIn(self.PREFIX, self.obj._stack)
def test_cleanup_keeps_other_prefix(self):
OTHER_PREFIX = 'Foo'
self.obj.add(self.PREFIX, self.KEY, None)
self.obj.add(OTHER_PREFIX, 'Bar', None)
self.obj.cleanup(self.PREFIX)
self.assertIn(OTHER_PREFIX, self.obj._stack)
def test_cleanup_returns_true(self):
self.obj.add(self.PREFIX, self.KEY, None)
self.assertTrue(self.obj.cleanup(self.PREFIX))
def test_missing_prefix(self):
self.assertFalse(self.obj.cleanup(self.PREFIX))
def test_pending_none(self):
self.assertIsNone(self.obj.pending(self.PREFIX_CLASS, self.KEY))
def test_pending_one(self):
self.obj.add(self.PREFIX, self.KEY, None)
self.assertEqual(self.obj.pending(self.PREFIX_CLASS, self.KEY), 1)
def test_pending_two(self):
self.obj.add(self.PREFIX, self.KEY, None)
self.obj.add(self.PREFIX, self.KEY, lambda x: True)
self.assertEqual(self.obj.pending(self.PREFIX_CLASS, self.KEY), 2)
def test_process_callback_false(self):
self.obj._stack = dict()
self.assertFalse(self.obj.process('FAIL', 'False', 'Empty',
self.mock_caller, []))
def test_process_false(self):
self.assertFalse(self.obj.process(self.PREFIX_CLASS, self.KEY, self))
def test_process_true(self):
self.obj.add(self.PREFIX, self.KEY, self.callback_mock)
self.assertTrue(self.obj.process(self.PREFIX_CLASS, self.KEY, self))
def test_process_mock_called(self):
args = (1, None, 'Hi')
self.obj.add(self.PREFIX, self.KEY, self.callback_mock)
self.obj.process(self.PREFIX, self.KEY, self, args)
self.callback_mock.assert_called_once_with(args)
def test_process_one_shot_removed(self):
args = (1, None, 'Hi')
self.obj.add(self.PREFIX, self.KEY, self.callback_mock)
self.obj.process(self.PREFIX, self.KEY, self, args)
self.assertNotIn(self.PREFIX, self.obj._stack)
def test_process_non_one_shot_prefix_not_removed(self):
self.obj.add(self.PREFIX, self.KEY, self.callback_mock, one_shot=False)
self.obj.process(self.PREFIX, self.KEY, self)
self.assertIn(self.PREFIX, self.obj._stack)
def test_process_non_one_shot_key_not_removed(self):
self.obj.add(self.PREFIX, self.KEY, self.callback_mock, one_shot=False)
self.obj.process(self.PREFIX, self.KEY, self)
self.assertIn(self.KEY, self.obj._stack[self.PREFIX])
def test_process_non_one_shot_callback_not_removed(self):
self.obj.add(self.PREFIX, self.KEY, self.callback_mock, one_shot=False)
self.obj.process(self.PREFIX, self.KEY, self)
self.assertEqual(self.obj._stack[self.PREFIX][self.KEY][0][self.CALLBACK],
self.callback_mock)
def test_process_only_caller_fails(self):
self.obj.add(self.PREFIX_CLASS, self.KEY, self.callback_mock,
only_caller=self.mock_caller)
self.obj.process(self.PREFIX_CLASS, self.KEY, self)
self.assertFalse(self.callback_mock.called)
def test_process_only_caller_fails_no_removal(self):
self.obj.add(self.PREFIX_CLASS, self.KEY, self.callback_mock,
only_caller=self.mock_caller)
self.obj.process(self.PREFIX_CLASS, self.KEY, self)
self.assertEqual(self.obj._stack[self.PREFIX][self.KEY][0][self.CALLBACK],
self.callback_mock)
def test_remove_with_no_callbacks_pending(self):
self.obj = callback.CallbackManager()
self.assertFalse(self.obj.remove(self.PREFIX, self.KEY,
self.callback_mock))
def test_remove_with_callback_true(self):
self.obj.add(self.PREFIX_CLASS, self.KEY, self.callback_mock)
self.assertTrue(self.obj.remove(self.PREFIX, self.KEY,
self.callback_mock))
def test_remove_with_callback_false(self):
self.obj.add(self.PREFIX_CLASS, self.KEY, None)
self.assertTrue(self.obj.remove(self.PREFIX, self.KEY,
self.callback_mock))
def test_remove_with_callback_true_empty_stack(self):
self.obj.add(self.PREFIX_CLASS, self.KEY, self.callback_mock)
self.obj.remove(prefix=self.PREFIX, key=self.KEY,
callback_value=self.callback_mock)
self.assertDictEqual(self.obj._stack, dict())
def test_remove_with_callback_true_non_empty_stack(self):
self.obj.add(self.PREFIX_CLASS, self.KEY, self.callback_mock)
self.obj.add(self.PREFIX_CLASS, self.KEY, self.mock_caller)
self.obj.remove(self.PREFIX, self.KEY, self.callback_mock)
self.assertEqual(self.mock_caller,
self.obj._stack[self.PREFIX][self.KEY][0][self.CALLBACK])
def test_remove_prefix_key_with_other_key_prefix_remains(self):
OTHER_KEY = 'Other Key'
self.obj.add(self.PREFIX_CLASS, self.KEY, self.callback_mock)
self.obj.add(self.PREFIX_CLASS, OTHER_KEY, self.mock_caller)
self.obj.remove(self.PREFIX, self.KEY, self.callback_mock)
self.assertIn(self.PREFIX, self.obj._stack)
def test_remove_prefix_key_with_other_key_remains(self):
OTHER_KEY = 'Other Key'
self.obj.add(self.PREFIX_CLASS, self.KEY, self.callback_mock)
self.obj.add(prefix=self.PREFIX_CLASS, key=OTHER_KEY,
callback=self.mock_caller)
self.obj.remove(self.PREFIX, self.KEY)
self.assertIn(OTHER_KEY, self.obj._stack[self.PREFIX])
def test_remove_prefix_key_with_other_key_callback_remains(self):
OTHER_KEY = 'Other Key'
self.obj.add(self.PREFIX_CLASS, self.KEY, self.callback_mock)
self.obj.add(self.PREFIX_CLASS, OTHER_KEY, self.mock_caller)
self.obj.remove(self.PREFIX, self.KEY)
self.assertEqual(self.mock_caller,
self.obj._stack[self.PREFIX][OTHER_KEY][0][self.CALLBACK])
def test_remove_all(self):
self.obj.add(self.PREFIX_CLASS, self.KEY, self.callback_mock)
self.obj.remove_all(self.PREFIX, self.KEY)
self.assertNotIn(self.PREFIX, self.obj._stack)
def test_should_process_callback_true(self):
self.obj.add(self.PREFIX_CLASS, self.KEY, self.callback_mock)
value = self.obj._callback_dict(self.callback_mock, False, None, None)
self.assertTrue(self.obj._should_process_callback(value,
self.mock_caller, []))
def test_should_process_callback_false_argument_fail(self):
self.obj.clear()
self.obj.add(self.PREFIX_CLASS, self.KEY, self.callback_mock,
arguments={'foo': 'baz'})
self.assertFalse(self.obj._should_process_callback(self._callback_dict,
self.mock_caller,
[{'foo': 'baz'}]))
def test_should_process_callback_false_only_caller_failure(self):
self.obj.add(self.PREFIX_CLASS, self.KEY, self.callback_mock)
value = self.obj._callback_dict(self.callback_mock, False, self, None)
self.assertTrue(self.obj._should_process_callback(value,
self.mock_caller, []))
def test_should_process_callback_false_only_caller_failure(self):
self.obj.add(self.PREFIX_CLASS, self.KEY, self.callback_mock)
value = self.obj._callback_dict(self.callback_mock, False,
self.mock_caller, None)
self.assertTrue(self.obj._should_process_callback(value,
self.mock_caller, []))
def test_dict(self):
self.assertDictEqual(self.obj._callback_dict(self.callback_mock,
True, self.mock_caller,
self.ARGUMENTS_VALUE),
self._callback_dict)
def test_arguments_match_no_arguments(self):
self.assertFalse(self.obj._arguments_match(self._callback_dict, []))
def test_arguments_match_dict_argument(self):
self.assertTrue(self.obj._arguments_match(self._callback_dict,
[self.ARGUMENTS_VALUE]))
def test_arguments_match_dict_argument_no_attribute(self):
self.assertFalse(self.obj._arguments_match(self._callback_dict,
[{}]))
def test_arguments_match_dict_argument_no_match(self):
self.assertFalse(self.obj._arguments_match(self._callback_dict,
[{'foo': 'baz'}]))
def test_arguments_match_obj_argument(self):
class TestObj(object):
foo = 'bar'
test_instance = TestObj()
self.assertTrue(self.obj._arguments_match(self._callback_dict,
[test_instance]))
def test_arguments_match_obj_no_attribute(self):
class TestObj(object):
qux = 'bar'
test_instance = TestObj()
self.assertFalse(self.obj._arguments_match(self._callback_dict,
[test_instance]))
def test_arguments_match_obj_argument_no_match(self):
class TestObj(object):
foo = 'baz'
test_instance = TestObj()
self.assertFalse(self.obj._arguments_match(self._callback_dict,
[test_instance]))
def test_arguments_match_obj_argument_with_method(self):
class TestFrame(object):
method = None
class MethodObj(object):
foo = 'bar'
test_instance = TestFrame()
test_instance.method = MethodObj()
self.assertTrue(self.obj._arguments_match(self._callback_dict,
[test_instance]))
def test_arguments_match_obj_argument_with_method_no_match(self):
class TestFrame(object):
method = None
class MethodObj(object):
foo = 'baz'
test_instance = TestFrame()
test_instance.method = MethodObj()
self.assertFalse(self.obj._arguments_match(self._callback_dict,
[test_instance]))
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