def test_next_page(self, mock_session, mock_executor):
mock_page1 = {
'Values': [{
'IonBinary': 1
}, {
'IonBinary': 2
}],
'NextPageToken': 'token'
}
mock_page2 = {
'Values': [{
'IonBinary': 2
}, {
'IonBinary': 3
}],
'NextPageToken': None
}
mock_statement_result1 = {'Page': mock_page1}
mock_statement_result2 = {'Page': mock_page2}
mock_session.return_value = None
mock_session._fetch_page.return_value = mock_statement_result2
read_ahead_cursor = ReadAheadCursor(mock_statement_result1,
mock_session, MOCK_TRANSACTION_ID,
MOCK_READ_AHEAD, mock_executor)
read_ahead_cursor._queue = Queue()
read_ahead_cursor._queue.put(mock_statement_result2)
read_ahead_cursor._next_page()
self.assertEqual(read_ahead_cursor._page, mock_page2)
self.assertEqual(read_ahead_cursor._index, 0)
def test_next_page_client_error(self, mock_session, mock_executor):
mock_session.return_value = None
mock_session._fetch_page.return_value = {'Page': MOCK_STATEMENT_RESULT}
read_ahead_cursor = ReadAheadCursor(MOCK_STATEMENT_RESULT,
mock_session, MOCK_TRANSACTION_ID,
MOCK_READ_AHEAD, mock_executor)
read_ahead_cursor._queue = Queue()
read_ahead_cursor._queue.put(
ClientError(MOCK_CLIENT_ERROR_MESSAGE, MOCK_MESSAGE))
self.assertRaises(ClientError, read_ahead_cursor._next_page)
def test_next_with_next_page_returns_empty_values_and_not_none_token(
self, mock_session, mock_executor):
read_ahead_cursor = ReadAheadCursor(MOCK_STATEMENT_RESULT,
mock_session, MOCK_TRANSACTION_ID,
MOCK_READ_AHEAD, mock_executor)
read_ahead_cursor._queue = Queue()
read_ahead_cursor._queue.put({'NextPageToken': 'token', 'Values': []})
read_ahead_cursor._queue.put({'NextPageToken': None, 'Values': []})
read_ahead_cursor._index = len(MOCK_ION_BINARY_VALUES)
self.assertRaises(StopIteration, next, read_ahead_cursor)
def test_next_page(self, mock_session, mock_executor):
mock_session.return_value = None
mock_session._fetch_page.return_value = {'Page': MOCK_STATEMENT_RESULT}
read_ahead_cursor = ReadAheadCursor(MOCK_STATEMENT_RESULT,
mock_session, MOCK_TRANSACTION_ID,
MOCK_READ_AHEAD, mock_executor)
read_ahead_cursor._queue = Queue()
read_ahead_cursor._queue.put(MOCK_STATEMENT_RESULT)
read_ahead_cursor._next_page()
self.assertEqual(read_ahead_cursor._page, MOCK_STATEMENT_RESULT)
self.assertEqual(read_ahead_cursor._index, 0)
def test_are_there_more_results(self, mock_session, mock_executor):
mock_session.return_value = None
read_ahead_cursor = ReadAheadCursor(MOCK_STATEMENT_RESULT,
mock_session, MOCK_TRANSACTION_ID,
MOCK_READ_AHEAD, mock_executor)
read_ahead_cursor._page = {'NextPageToken': 'token', 'Values': []}
self.assertTrue(read_ahead_cursor._are_there_more_results())
read_ahead_cursor._page = {'NextPageToken': None, 'Values': []}
read_ahead_cursor._queue = Queue()
self.assertFalse(read_ahead_cursor._are_there_more_results())
def test_populate_queue(self, mock_queue, mock_session, mock_executor):
mock_session.return_value = None
mock_queue.return_value = mock_queue
mock_page = {'NextPageToken': None, 'Values': []}
mock_session._fetch_page.return_value = {'Page': mock_page}
mock_queue.full.return_value = False
read_ahead_cursor = ReadAheadCursor(MOCK_STATEMENT_RESULT,
mock_session, MOCK_TRANSACTION_ID,
MOCK_READ_AHEAD, mock_executor)
read_ahead_cursor._queue = mock_queue
read_ahead_cursor._populate_queue()
mock_session._fetch_page.assert_called_once_with(
MOCK_TRANSACTION_ID, MOCK_STATEMENT_RESULT.get('NextPageToken'))
mock_queue.put.assert_called_once_with(mock_page, timeout=0.05)
def test_populate_queue_client_error(self, mock_session, mock_logger_debug,
mock_executor):
mock_logger_debug.return_value = None
mock_session.return_value = None
mock_session._fetch_page.side_effect = ClientError(
MOCK_CLIENT_ERROR_MESSAGE, MOCK_MESSAGE)
read_ahead_cursor = ReadAheadCursor(MOCK_STATEMENT_RESULT,
mock_session, MOCK_TRANSACTION_ID,
MOCK_READ_AHEAD, mock_executor)
read_ahead_cursor._queue = Queue(1)
read_ahead_cursor._queue.put('value to be removed')
read_ahead_cursor._populate_queue()
mock_logger_debug.assert_called_once()
self.assertIsInstance(read_ahead_cursor._queue.get(), ClientError)
self.assertEqual(read_ahead_cursor._queue.qsize(), 0)
def test_populate_queue(self, mock_queue, mock_session, mock_executor):
mock_session.return_value = None
mock_queue.return_value = mock_queue
mock_session._fetch_page.return_value = MOCK_FETCH_PAGE_RESULT_WITHOUT_TOKEN
mock_queue.full.return_value = False
read_ahead_cursor = ReadAheadCursor(MOCK_STATEMENT_RESULT,
mock_session, MOCK_TRANSACTION_ID,
MOCK_READ_AHEAD, mock_executor)
read_ahead_cursor._queue = mock_queue
read_ahead_cursor._populate_queue()
next_page_token = MOCK_STATEMENT_RESULT.get('FirstPage').get(
'NextPageToken')
mock_session._fetch_page.assert_called_once_with(
MOCK_TRANSACTION_ID, next_page_token)
mock_queue.put.assert_called_once_with(
MOCK_FETCH_PAGE_RESULT_WITHOUT_TOKEN, timeout=0.05)
def test_populate_queue_result_closed_error(self, mock_session,
mock_logger_debug,
mock_executor):
def close_parent_txn(txn_id, token):
read_ahead_cursor._is_open = False
return MOCK_STATEMENT_RESULT
mock_logger_debug.return_value = None
mock_session.return_value = None
mock_session._fetch_page.side_effect = close_parent_txn
read_ahead_cursor = ReadAheadCursor(MOCK_STATEMENT_RESULT,
mock_session, MOCK_TRANSACTION_ID,
MOCK_READ_AHEAD, mock_executor)
read_ahead_cursor._queue = Queue(1)
read_ahead_cursor._queue.put('value to be removed')
read_ahead_cursor._populate_queue()
self.assertEqual(mock_logger_debug.call_count, 2)
self.assertIsInstance(read_ahead_cursor._queue.get(),
ResultClosedError)
self.assertEqual(read_ahead_cursor._queue.qsize(), 0)