def test_cancel_pending_requests(self):
"""
Ensure all the tasks in the lookup's pending_requests dict are
cancelled.
"""
lookup = Lookup(FindNode, self.target, self.node, self.event_loop)
# Sanity check
self.assertEqual(3, len(lookup.pending_requests))
tasks = lookup.pending_requests.values()
lookup._cancel_pending_requests()
self.event_loop.run_until_complete(blip())
self.assertEqual(lookup.pending_requests, {})
for task in tasks:
self.assertTrue(task.cancelled())
def test_cancel_pending_requests(self):
"""
Ensure all the tasks in the lookup's pending_requests dict are
cancelled.
"""
lookup = Lookup(FindNode, self.target, self.node, self.event_loop)
# Sanity check
self.assertEqual(3, len(lookup.pending_requests))
tasks = lookup.pending_requests.values()
lookup._cancel_pending_requests()
self.event_loop.run_until_complete(blip())
self.assertEqual(lookup.pending_requests, {})
for task in tasks:
self.assertTrue(task.cancelled())
def test_lookup_added_callbacks_work_when_cancelled(self):
"""
Ensures that the callback added to pending requests by the _lookup
method handles cancelled results. This may happen if the lookup is
finished because a suitable value has been found (so everything else
can be stopped ASAP).
"""
# Reset event_loop so we start in a clean state.
loop = asyncio.new_event_loop()
asyncio.set_event_loop(loop)
self.event_loop = asyncio.get_event_loop()
lookup = Lookup(FindValue, self.target, self.node, self.event_loop)
lookup._handle_response = mock.MagicMock()
lookup._cancel_pending_requests()
for k, v in lookup.pending_requests.items():
v.set_result('foo')
self.event_loop.run_until_complete(v)
self.assertEqual(lookup._handle_response.call_count, 0)
def test_lookup_added_callbacks_work_when_cancelled(self):
"""
Ensures that the callback added to pending requests by the _lookup
method handles cancelled results. This may happen if the lookup is
finished because a suitable value has been found (so everything else
can be stopped ASAP).
"""
# Reset event_loop so we start in a clean state.
loop = asyncio.new_event_loop()
asyncio.set_event_loop(loop)
self.event_loop = asyncio.get_event_loop()
lookup = Lookup(FindValue, self.target, self.node, self.event_loop)
lookup._handle_response = mock.MagicMock()
lookup._cancel_pending_requests()
for k, v in lookup.pending_requests.items():
v.set_result('foo')
self.event_loop.run_until_complete(v)
self.assertEqual(lookup._handle_response.call_count, 0)
def test_cancel(self):
"""
Ensure that the expected operations happen when the lookup's cancel
method is called (the pending requests also need to be cancelled).
"""
patcher = mock.patch('asyncio.Future.cancel')
mock_cancel = patcher.start()
lookup = Lookup(FindNode, self.target, self.node, self.event_loop)
lookup._cancel_pending_requests = mock.MagicMock()
result = lookup.cancel()
self.assertTrue(result)
self.assertEqual(lookup._cancel_pending_requests.call_count, 1)
self.assertEqual(mock_cancel.call_count, 1)
patcher.stop()
def test_cancel(self):
"""
Ensure that the expected operations happen when the lookup's cancel
method is called (the pending requests also need to be cancelled).
"""
patcher = mock.patch('asyncio.Future.cancel')
mock_cancel = patcher.start()
lookup = Lookup(FindNode, self.target, self.node, self.event_loop)
lookup._cancel_pending_requests = mock.MagicMock()
result = lookup.cancel()
self.assertTrue(result)
self.assertEqual(lookup._cancel_pending_requests.call_count, 1)
self.assertEqual(mock_cancel.call_count, 1)
patcher.stop()