def test_add_callbacks(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)
# test errback
rf = ResponseFuture(session, message, query, 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={})
rf._set_result(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(self.make_mock_response(expected_result))
self.assertEqual(rf.result(), expected_result)
callback.assert_called_once_with(expected_result, arg, **kwargs)
def test_add_callbacks(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)
# test errback
rf = ResponseFuture(session, message, query)
rf.send_request()
rf.add_callbacks(
callback=self.assertEquals, callback_args=([{'col': 'val'}],),
errback=self.assertIsInstance, errback_args=(Exception,))
result = Mock(spec=UnavailableErrorMessage, info={})
rf._set_result(result)
self.assertRaises(Exception, rf.result)
# test callback
rf = ResponseFuture(session, message, query)
rf.send_request()
rf.add_callbacks(
callback=self.assertEquals, callback_args=([{'col': 'val'}],),
errback=self.assertIsInstance, errback_args=(Exception,))
response = Mock(spec=ResultMessage, kind=ResultMessage.KIND_ROWS, results=[{'col': 'val'}])
rf._set_result(response)
self.assertEqual(rf.result(), [{'col': 'val'}])
def test_retry_policy_says_retry(self):
session = self.make_session()
pool = session._pools.get.return_value
query = SimpleStatement("INSERT INFO foo (a, b) VALUES (1, 2)")
query.retry_policy = Mock()
query.retry_policy.on_unavailable.return_value = (RetryPolicy.RETRY, ConsistencyLevel.ONE)
message = QueryMessage(query=query, consistency_level=ConsistencyLevel.QUORUM)
rf = ResponseFuture(session, message, query)
rf.send_request()
rf.session._pools.get.assert_called_once_with('ip1')
pool.borrow_connection.assert_called_once_with(timeout=ANY)
connection = pool.borrow_connection.return_value
connection.send_msg.assert_called_once_with(rf.message, cb=ANY)
result = Mock(spec=UnavailableErrorMessage, info={})
rf._set_result(result)
session.submit.assert_called_once_with(rf._retry_task, True)
self.assertEqual(1, rf._query_retries)
# simulate the executor running this
rf._retry_task(True)
# it should try again with the same host since this was
# an UnavailableException
rf.session._pools.get.assert_called_with('ip1')
pool.borrow_connection.assert_called_with(timeout=ANY)
connection = pool.borrow_connection.return_value
connection.send_msg.assert_called_with(rf.message, cb=ANY)
def test_multiple_errbacks(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)")
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.send_request()
callback = Mock()
arg = "positional"
kwargs = {'one': 1, 'two': 2}
rf.add_errback(callback, arg, **kwargs)
callback2 = Mock()
arg2 = "another"
kwargs2 = {'three': 3, 'four': 4}
rf.add_errback(callback2, arg2, **kwargs2)
expected_exception = Unavailable("message", 1, 2, 3)
result = Mock(spec=UnavailableErrorMessage, info={'something': 'here'})
result.to_exception.return_value = expected_exception
rf._set_result(result)
self.assertRaises(Exception, rf.result)
callback.assert_called_once_with(expected_exception, arg, **kwargs)
callback2.assert_called_once_with(expected_exception, arg2, **kwargs2)
def test_retry_policy_says_ignore(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.IGNORE, None)
message = QueryMessage(query=query, consistency_level=ConsistencyLevel.ONE)
rf = ResponseFuture(session, message, query)
rf.send_request()
result = Mock(spec=UnavailableErrorMessage, info={})
rf._set_result(result)
self.assertEqual(None, rf.result())
def test_write_timeout_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_write_timeout.return_value = (RetryPolicy.RETHROW, None)
message = QueryMessage(query=query, consistency_level=ConsistencyLevel.ONE)
rf = ResponseFuture(session, message, query)
rf.send_request()
result = Mock(spec=WriteTimeoutErrorMessage, info={})
rf._set_result(result)
self.assertRaises(Exception, rf.result)
def test_read_timeout_error_message(self):
session = self.make_session()
query = SimpleStatement("SELECT * FROM foo")
query.retry_policy = Mock()
query.retry_policy.on_read_timeout.return_value = (RetryPolicy.RETHROW, None)
message = QueryMessage(query=query, consistency_level=ConsistencyLevel.ONE)
rf = ResponseFuture(session, message, query, 1)
rf.send_request()
result = Mock(spec=ReadTimeoutErrorMessage, info={})
rf._set_result(result)
self.assertRaises(Exception, rf.result)
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_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.send_request()
result = Mock(spec=UnavailableErrorMessage, info={})
rf._set_result(None, None, None, result)
self.assertRaises(Exception, rf.result)
def test_retry_policy_says_retry(self):
session = self.make_session()
pool = session._pools.get.return_value
query = SimpleStatement("INSERT INFO foo (a, b) VALUES (1, 2)")
query.retry_policy = Mock()
query.retry_policy.on_unavailable.return_value = (RetryPolicy.RETRY,
ConsistencyLevel.ONE)
message = QueryMessage(query=query,
consistency_level=ConsistencyLevel.QUORUM)
connection = Mock(spec=Connection)
pool.borrow_connection.return_value = (connection, 1)
rf = ResponseFuture(session, message, query, 1)
rf.send_request()
rf.session._pools.get.assert_called_once_with('ip1')
pool.borrow_connection.assert_called_once_with(timeout=ANY)
connection.send_msg.assert_called_once_with(
rf.message,
1,
cb=ANY,
encoder=ProtocolHandler.encode_message,
decoder=ProtocolHandler.decode_message)
result = Mock(spec=UnavailableErrorMessage, info={})
rf._set_result(result)
session.submit.assert_called_once_with(rf._retry_task, True)
self.assertEqual(1, rf._query_retries)
connection = Mock(spec=Connection)
pool.borrow_connection.return_value = (connection, 2)
# simulate the executor running this
rf._retry_task(True)
# it should try again with the same host since this was
# an UnavailableException
rf.session._pools.get.assert_called_with('ip1')
pool.borrow_connection.assert_called_with(timeout=ANY)
connection.send_msg.assert_called_with(
rf.message,
2,
cb=ANY,
encoder=ProtocolHandler.encode_message,
decoder=ProtocolHandler.decode_message)
def test_read_timeout_error_message(self):
session = self.make_session()
query = SimpleStatement("SELECT * FROM foo")
query.retry_policy = Mock()
query.retry_policy.on_read_timeout.return_value = (RetryPolicy.RETHROW,
None)
message = QueryMessage(query=query,
consistency_level=ConsistencyLevel.ONE)
rf = ResponseFuture(session, message, query)
rf.send_request()
result = Mock(spec=ReadTimeoutErrorMessage, info={})
rf._set_result(result)
self.assertRaises(Exception, rf.result)
def test_errback(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)
rf.send_request()
rf.add_errback(self.assertIsInstance, Exception)
result = Mock(spec=UnavailableErrorMessage, info={})
rf._set_result(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)")
query.retry_policy = Mock()
query.retry_policy.on_unavailable.return_value = (RetryPolicy.RETHROW,
None)
message = QueryMessage(query=query,
consistency_level=ConsistencyLevel.ONE)
# test errback
rf = ResponseFuture(session, message, query, 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={})
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)
def test_add_callbacks(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)
# test errback
rf = ResponseFuture(session, message, query)
rf.send_request()
rf.add_callbacks(callback=self.assertEquals,
callback_args=([{
'col': 'val'
}], ),
errback=self.assertIsInstance,
errback_args=(Exception, ))
result = Mock(spec=UnavailableErrorMessage, info={})
rf._set_result(result)
self.assertRaises(Exception, rf.result)
# test callback
rf = ResponseFuture(session, message, query)
rf.send_request()
rf.add_callbacks(callback=self.assertEquals,
callback_args=([{
'col': 'val'
}], ),
errback=self.assertIsInstance,
errback_args=(Exception, ))
response = Mock(spec=ResultMessage,
kind=ResultMessage.KIND_ROWS,
results=[{
'col': 'val'
}])
rf._set_result(response)
self.assertEqual(rf.result(), [{'col': 'val'}])
def test_errback(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)
rf.send_request()
rf.add_errback(self.assertIsInstance, Exception)
result = Mock(spec=UnavailableErrorMessage, info={})
rf._set_result(result)
self.assertRaises(Exception, rf.result)
# this should get called immediately now that the error is set
rf.add_errback(self.assertIsInstance, Exception)
