def test_request_error_with_prepare_message(self):
session = self.make_session()
query = SimpleStatement("SELECT * FROM foobar")
retry_policy = Mock()
retry_policy.on_request_error.return_value = (RetryPolicy.RETHROW,
None)
message = PrepareMessage(query=query)
rf = ResponseFuture(session,
message,
query,
1,
retry_policy=retry_policy)
rf._query_retries = 1
rf.send_request()
result = Mock(spec=OverloadedErrorMessage)
result.to_exception.return_value = result
rf._set_result(None, None, None, result)
self.assertIsInstance(rf._final_exception, OverloadedErrorMessage)
rf = ResponseFuture(session,
message,
query,
1,
retry_policy=retry_policy)
rf._query_retries = 1
rf.send_request()
result = Mock(spec=ConnectionException)
rf._set_result(None, None, None, result)
self.assertIsInstance(rf._final_exception, ConnectionException)
def test_errback(self):
session = self.make_session()
pool = session._pools.get.return_value
connection = Mock(spec=Connection)
pool.borrow_connection.return_value = (connection, 1)
query = SimpleStatement("INSERT INFO foo (a, b) VALUES (1, 2)")
message = QueryMessage(query=query,
consistency_level=ConsistencyLevel.ONE)
rf = ResponseFuture(session, message, query, 1)
rf._query_retries = 1
rf.send_request()
rf.add_errback(self.assertIsInstance, Exception)
result = Mock(spec=UnavailableErrorMessage,
info={
"required_replicas": 2,
"alive_replicas": 1,
"consistency": 1
})
result.to_exception.return_value = Exception()
rf._set_result(None, None, None, result)
self.assertRaises(Exception, rf.result)
# this should get called immediately now that the error is set
rf.add_errback(self.assertIsInstance, Exception)
def test_unavailable_error_message(self):
session = self.make_session()
query = SimpleStatement("INSERT INFO foo (a, b) VALUES (1, 2)")
query.retry_policy = Mock()
query.retry_policy.on_unavailable.return_value = (RetryPolicy.RETHROW, None)
message = QueryMessage(query=query, consistency_level=ConsistencyLevel.ONE)
rf = ResponseFuture(session, message, query, 1)
rf._query_retries = 1
rf.send_request()
result = Mock(spec=UnavailableErrorMessage, info={"required_replicas":2, "alive_replicas": 1, "consistency": 1})
rf._set_result(None, None, None, result)
self.assertRaises(Exception, rf.result)
def test_add_callbacks(self):
session = self.make_session()
query = SimpleStatement("INSERT INFO foo (a, b) VALUES (1, 2)")
message = QueryMessage(query=query,
consistency_level=ConsistencyLevel.ONE)
# test errback
rf = ResponseFuture(session, message, query, 1)
rf._query_retries = 1
rf.send_request()
rf.add_callbacks(callback=self.assertEqual,
callback_args=([{
'col': 'val'
}], ),
errback=self.assertIsInstance,
errback_args=(Exception, ))
result = Mock(spec=UnavailableErrorMessage,
info={
"required_replicas": 2,
"alive_replicas": 1,
"consistency": 1
})
result.to_exception.return_value = Exception()
rf._set_result(None, None, None, result)
self.assertRaises(Exception, rf.result)
# test callback
rf = ResponseFuture(session, message, query, 1)
rf.send_request()
callback = Mock()
expected_result = (object(), object())
arg = "positional"
kwargs = {'one': 1, 'two': 2}
rf.add_callbacks(callback=callback,
callback_args=(arg, ),
callback_kwargs=kwargs,
errback=self.assertIsInstance,
errback_args=(Exception, ))
rf._set_result(
None, None, None,
self.make_mock_response(expected_result[0], expected_result[1]))
self.assertEqual(rf.result()[0], expected_result)
callback.assert_called_once_with([expected_result], arg, **kwargs)
def test_unavailable_error_message(self):
session = self.make_session()
query = SimpleStatement("INSERT INFO foo (a, b) VALUES (1, 2)")
query.retry_policy = Mock()
query.retry_policy.on_unavailable.return_value = (RetryPolicy.RETHROW,
None)
message = QueryMessage(query=query,
consistency_level=ConsistencyLevel.ONE)
rf = ResponseFuture(session, message, query, 1)
rf._query_retries = 1
rf.send_request()
result = Mock(spec=UnavailableErrorMessage,
info={
"required_replicas": 2,
"alive_replicas": 1,
"consistency": 1
})
rf._set_result(None, None, None, result)
self.assertRaises(Exception, rf.result)
def test_errback(self):
session = self.make_session()
pool = session._pools.get.return_value
connection = Mock(spec=Connection)
pool.borrow_connection.return_value = (connection, 1)
query = SimpleStatement("INSERT INFO foo (a, b) VALUES (1, 2)")
message = QueryMessage(query=query, consistency_level=ConsistencyLevel.ONE)
rf = ResponseFuture(session, message, query, 1)
rf._query_retries = 1
rf.send_request()
rf.add_errback(self.assertIsInstance, Exception)
result = Mock(spec=UnavailableErrorMessage, info={"required_replicas":2, "alive_replicas": 1, "consistency": 1})
result.to_exception.return_value = Exception()
rf._set_result(None, None, None, result)
self.assertRaises(Exception, rf.result)
# this should get called immediately now that the error is set
rf.add_errback(self.assertIsInstance, Exception)
def test_add_callbacks(self):
session = self.make_session()
query = SimpleStatement("INSERT INFO foo (a, b) VALUES (1, 2)")
message = QueryMessage(query=query, consistency_level=ConsistencyLevel.ONE)
# test errback
rf = ResponseFuture(session, message, query, 1)
rf._query_retries = 1
rf.send_request()
rf.add_callbacks(
callback=self.assertEqual, callback_args=([{'col': 'val'}],),
errback=self.assertIsInstance, errback_args=(Exception,))
result = Mock(spec=UnavailableErrorMessage,
info={"required_replicas":2, "alive_replicas": 1, "consistency": 1})
result.to_exception.return_value = Exception()
rf._set_result(None, None, None, result)
self.assertRaises(Exception, rf.result)
# test callback
rf = ResponseFuture(session, message, query, 1)
rf.send_request()
callback = Mock()
expected_result = [{'col': 'val'}]
arg = "positional"
kwargs = {'one': 1, 'two': 2}
rf.add_callbacks(
callback=callback, callback_args=(arg,), callback_kwargs=kwargs,
errback=self.assertIsInstance, errback_args=(Exception,))
rf._set_result(None, None, None, self.make_mock_response(expected_result))
self.assertEqual(rf.result(), expected_result)
callback.assert_called_once_with(expected_result, arg, **kwargs)
