class TestKucoinAPIOrderBookDataSource(unittest.TestCase):
# logging.Level required to receive logs from the data source logger
level = 0
@classmethod
def setUpClass(cls) -> None:
super().setUpClass()
cls.ev_loop = asyncio.get_event_loop()
cls.base_asset = "COINALPHA"
cls.quote_asset = "HBOT"
cls.trading_pair = f"{cls.base_asset}-{cls.quote_asset}"
cls.ws_endpoint = "ws://someEndpoint"
cls.api_key = "someKey"
cls.api_passphrase = "somePassPhrase"
cls.api_secret_key = "someSecretKey"
def setUp(self) -> None:
super().setUp()
self.log_records = []
self.async_task = None
self.mocking_assistant = NetworkMockingAssistant()
self.throttler = AsyncThrottler(CONSTANTS.RATE_LIMITS)
self.time_synchronnizer = TimeSynchronizer()
self.time_synchronnizer.add_time_offset_ms_sample(1000)
self.ob_data_source = KucoinAPIOrderBookDataSource(
trading_pairs=[self.trading_pair],
throttler=self.throttler,
time_synchronizer=self.time_synchronnizer)
self.ob_data_source.logger().setLevel(1)
self.ob_data_source.logger().addHandler(self)
KucoinAPIOrderBookDataSource._trading_pair_symbol_map = {
CONSTANTS.DEFAULT_DOMAIN:
bidict({self.trading_pair: self.trading_pair})
}
def tearDown(self) -> None:
self.async_task and self.async_task.cancel()
KucoinAPIOrderBookDataSource._trading_pair_symbol_map = {}
super().tearDown()
def handle(self, record):
self.log_records.append(record)
def _is_logged(self, log_level: str, message: str) -> bool:
return any(
record.levelname == log_level and record.getMessage() == message
for record in self.log_records)
def async_run_with_timeout(self, coroutine: Awaitable, timeout: int = 1):
ret = self.ev_loop.run_until_complete(
asyncio.wait_for(coroutine, timeout))
return ret
@staticmethod
def get_snapshot_mock() -> Dict:
snapshot = {
"code": "200000",
"data": {
"time": 1630556205455,
"sequence": "1630556205456",
"bids": [["0.3003", "4146.5645"]],
"asks": [["0.3004", "1553.6412"]]
}
}
return snapshot
@aioresponses()
def test_get_last_traded_prices(self, mock_api):
KucoinAPIOrderBookDataSource._trading_pair_symbol_map[
CONSTANTS.DEFAULT_DOMAIN]["TKN1-TKN2"] = "TKN1-TKN2"
url1 = web_utils.rest_url(
path_url=CONSTANTS.TICKER_PRICE_CHANGE_PATH_URL,
domain=CONSTANTS.DEFAULT_DOMAIN)
url1 = f"{url1}?symbol={self.trading_pair}"
regex_url = re.compile(f"^{url1}".replace(".",
r"\.").replace("?", r"\?"))
resp = {
"code": "200000",
"data": {
"sequence": "1550467636704",
"bestAsk": "0.03715004",
"size": "0.17",
"price": "100",
"bestBidSize": "3.803",
"bestBid": "0.03710768",
"bestAskSize": "1.788",
"time": 1550653727731
}
}
mock_api.get(regex_url, body=json.dumps(resp))
url2 = web_utils.rest_url(
path_url=CONSTANTS.TICKER_PRICE_CHANGE_PATH_URL,
domain=CONSTANTS.DEFAULT_DOMAIN)
url2 = f"{url2}?symbol=TKN1-TKN2"
regex_url = re.compile(f"^{url2}".replace(".",
r"\.").replace("?", r"\?"))
resp = {
"code": "200000",
"data": {
"sequence": "1550467636704",
"bestAsk": "0.03715004",
"size": "0.17",
"price": "200",
"bestBidSize": "3.803",
"bestBid": "0.03710768",
"bestAskSize": "1.788",
"time": 1550653727731
}
}
mock_api.get(regex_url, body=json.dumps(resp))
ret = self.async_run_with_timeout(
coroutine=KucoinAPIOrderBookDataSource.get_last_traded_prices(
[self.trading_pair, "TKN1-TKN2"]))
ticker_requests = [(key, value)
for key, value in mock_api.requests.items()
if key[1].human_repr().startswith(url1)
or key[1].human_repr().startswith(url2)]
request_params = ticker_requests[0][1][0].kwargs["params"]
self.assertEqual(f"{self.base_asset}-{self.quote_asset}",
request_params["symbol"])
request_params = ticker_requests[1][1][0].kwargs["params"]
self.assertEqual("TKN1-TKN2", request_params["symbol"])
self.assertEqual(ret[self.trading_pair], 100)
self.assertEqual(ret["TKN1-TKN2"], 200)
@aioresponses()
def test_fetch_trading_pairs(self, mock_api):
KucoinAPIOrderBookDataSource._trading_pair_symbol_map = {}
url = web_utils.rest_url(path_url=CONSTANTS.EXCHANGE_INFO_PATH_URL)
resp = {
"data": [{
"symbol": self.trading_pair,
"name": self.trading_pair,
"baseCurrency": self.base_asset,
"quoteCurrency": self.quote_asset,
"enableTrading": True,
}, {
"symbol": "SOME-PAIR",
"name": "SOME-PAIR",
"baseCurrency": "SOME",
"quoteCurrency": "PAIR",
"enableTrading": False,
}]
}
mock_api.get(url, body=json.dumps(resp))
ret = self.async_run_with_timeout(
coroutine=KucoinAPIOrderBookDataSource.fetch_trading_pairs(
throttler=self.throttler,
time_synchronizer=self.time_synchronnizer,
))
self.assertEqual(1, len(ret))
self.assertEqual(self.trading_pair, ret[0])
@aioresponses()
def test_fetch_trading_pairs_exception_raised(self, mock_api):
KucoinAPIOrderBookDataSource._trading_pair_symbol_map = {}
url = web_utils.rest_url(path_url=CONSTANTS.EXCHANGE_INFO_PATH_URL)
regex_url = re.compile(f"^{url}".replace(".",
r"\.").replace("?", r"\?"))
mock_api.get(regex_url, exception=Exception)
result: Dict[str] = self.async_run_with_timeout(
self.ob_data_source.fetch_trading_pairs())
self.assertEqual(0, len(result))
@aioresponses()
def test_get_snapshot_raises(self, mock_api):
url = web_utils.rest_url(path_url=CONSTANTS.SNAPSHOT_NO_AUTH_PATH_URL)
regex_url = re.compile(f"^{url}".replace(".",
r"\.").replace("?", r"\?"))
mock_api.get(regex_url, status=500)
with self.assertRaises(IOError):
self.async_run_with_timeout(
coroutine=self.ob_data_source.get_snapshot(self.trading_pair))
@aioresponses()
def test_get_snapshot(self, mock_api):
url = web_utils.rest_url(path_url=CONSTANTS.SNAPSHOT_NO_AUTH_PATH_URL)
regex_url = re.compile(f"^{url}".replace(".",
r"\.").replace("?", r"\?"))
resp = self.get_snapshot_mock()
mock_api.get(regex_url, body=json.dumps(resp))
ret = self.async_run_with_timeout(
coroutine=self.ob_data_source.get_snapshot(self.trading_pair))
self.assertEqual(ret, resp) # shallow comparison ok
@aioresponses()
def test_get_new_order_book(self, mock_api):
url = web_utils.rest_url(path_url=CONSTANTS.SNAPSHOT_NO_AUTH_PATH_URL)
regex_url = re.compile(f"^{url}".replace(".",
r"\.").replace("?", r"\?"))
resp = self.get_snapshot_mock()
mock_api.get(regex_url, body=json.dumps(resp))
ret = self.async_run_with_timeout(
coroutine=self.ob_data_source.get_new_order_book(
self.trading_pair))
bid_entries = list(ret.bid_entries())
ask_entries = list(ret.ask_entries())
self.assertEqual(1, len(bid_entries))
self.assertEqual(0.3003, bid_entries[0].price)
self.assertEqual(4146.5645, bid_entries[0].amount)
self.assertEqual(int(resp["data"]["sequence"]),
bid_entries[0].update_id)
self.assertEqual(1, len(ask_entries))
self.assertEqual(0.3004, ask_entries[0].price)
self.assertEqual(1553.6412, ask_entries[0].amount)
self.assertEqual(int(resp["data"]["sequence"]),
ask_entries[0].update_id)
@aioresponses()
@patch("aiohttp.ClientSession.ws_connect", new_callable=AsyncMock)
@patch(
"hummingbot.connector.exchange.kucoin.kucoin_web_utils.next_message_id"
)
def test_listen_for_subscriptions_subscribes_to_trades_and_order_diffs(
self, mock_api, id_mock, ws_connect_mock):
id_mock.side_effect = [1, 2]
url = web_utils.rest_url(path_url=CONSTANTS.PUBLIC_WS_DATA_PATH_URL)
resp = {
"code": "200000",
"data": {
"instanceServers": [{
"endpoint": "wss://test.url/endpoint",
"protocol": "websocket",
"encrypt": True,
"pingInterval": 50000,
"pingTimeout": 10000
}],
"token":
"testToken"
}
}
mock_api.post(url, body=json.dumps(resp))
ws_connect_mock.return_value = self.mocking_assistant.create_websocket_mock(
)
result_subscribe_trades = {"type": "ack", "id": 1}
result_subscribe_diffs = {"type": "ack", "id": 2}
self.mocking_assistant.add_websocket_aiohttp_message(
websocket_mock=ws_connect_mock.return_value,
message=json.dumps(result_subscribe_trades))
self.mocking_assistant.add_websocket_aiohttp_message(
websocket_mock=ws_connect_mock.return_value,
message=json.dumps(result_subscribe_diffs))
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_subscriptions())
self.mocking_assistant.run_until_all_aiohttp_messages_delivered(
ws_connect_mock.return_value)
sent_subscription_messages = self.mocking_assistant.json_messages_sent_through_websocket(
websocket_mock=ws_connect_mock.return_value)
self.assertEqual(2, len(sent_subscription_messages))
expected_trade_subscription = {
"id": 1,
"type": "subscribe",
"topic": f"/market/match:{self.trading_pair}",
"privateChannel": False,
"response": False
}
self.assertEqual(expected_trade_subscription,
sent_subscription_messages[0])
expected_diff_subscription = {
"id": 2,
"type": "subscribe",
"topic": f"/market/level2:{self.trading_pair}",
"privateChannel": False,
"response": False
}
self.assertEqual(expected_diff_subscription,
sent_subscription_messages[1])
self.assertTrue(
self._is_logged(
"INFO",
"Subscribed to public order book and trade channels..."))
@aioresponses()
@patch("aiohttp.ClientSession.ws_connect", new_callable=AsyncMock)
@patch(
"hummingbot.connector.exchange.kucoin.kucoin_web_utils.next_message_id"
)
@patch(
"hummingbot.connector.exchange.kucoin.kucoin_api_order_book_data_source.KucoinAPIOrderBookDataSource._time"
)
def test_listen_for_subscriptions_sends_ping_message_before_ping_interval_finishes(
self, mock_api, time_mock, id_mock, ws_connect_mock):
id_mock.side_effect = [1, 2, 3, 4]
time_mock.side_effect = [
1000, 1100, 1101, 1102
] # Simulate first ping interval is already due
url = web_utils.rest_url(path_url=CONSTANTS.PUBLIC_WS_DATA_PATH_URL)
resp = {
"code": "200000",
"data": {
"instanceServers": [{
"endpoint": "wss://test.url/endpoint",
"protocol": "websocket",
"encrypt": True,
"pingInterval": 20000,
"pingTimeout": 10000
}],
"token":
"testToken"
}
}
mock_api.post(url, body=json.dumps(resp))
ws_connect_mock.return_value = self.mocking_assistant.create_websocket_mock(
)
result_subscribe_trades = {"type": "ack", "id": 1}
result_subscribe_diffs = {"type": "ack", "id": 2}
self.mocking_assistant.add_websocket_aiohttp_message(
websocket_mock=ws_connect_mock.return_value,
message=json.dumps(result_subscribe_trades))
self.mocking_assistant.add_websocket_aiohttp_message(
websocket_mock=ws_connect_mock.return_value,
message=json.dumps(result_subscribe_diffs))
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_subscriptions())
self.mocking_assistant.run_until_all_aiohttp_messages_delivered(
ws_connect_mock.return_value)
sent_messages = self.mocking_assistant.json_messages_sent_through_websocket(
websocket_mock=ws_connect_mock.return_value)
expected_ping_message = {
"id": 3,
"type": "ping",
}
self.assertEqual(expected_ping_message, sent_messages[-1])
@aioresponses()
@patch("aiohttp.ClientSession.ws_connect", new_callable=AsyncMock)
@patch(
"hummingbot.core.data_type.order_book_tracker_data_source.OrderBookTrackerDataSource._sleep"
)
def test_listen_for_subscriptions_raises_cancel_exception(
self, mock_api, _, ws_connect_mock):
url = web_utils.rest_url(path_url=CONSTANTS.PUBLIC_WS_DATA_PATH_URL)
resp = {
"code": "200000",
"data": {
"instanceServers": [{
"endpoint": "wss://test.url/endpoint",
"protocol": "websocket",
"encrypt": True,
"pingInterval": 50000,
"pingTimeout": 10000
}],
"token":
"testToken"
}
}
mock_api.post(url, body=json.dumps(resp))
ws_connect_mock.side_effect = asyncio.CancelledError
with self.assertRaises(asyncio.CancelledError):
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_subscriptions())
self.async_run_with_timeout(self.listening_task)
@aioresponses()
@patch("aiohttp.ClientSession.ws_connect", new_callable=AsyncMock)
@patch(
"hummingbot.core.data_type.order_book_tracker_data_source.OrderBookTrackerDataSource._sleep"
)
def test_listen_for_subscriptions_logs_exception_details(
self, mock_api, sleep_mock, ws_connect_mock):
url = web_utils.rest_url(path_url=CONSTANTS.PUBLIC_WS_DATA_PATH_URL)
resp = {
"code": "200000",
"data": {
"instanceServers": [{
"endpoint": "wss://test.url/endpoint",
"protocol": "websocket",
"encrypt": True,
"pingInterval": 50000,
"pingTimeout": 10000
}],
"token":
"testToken"
}
}
mock_api.post(url, body=json.dumps(resp))
sleep_mock.side_effect = asyncio.CancelledError
ws_connect_mock.side_effect = Exception("TEST ERROR.")
with self.assertRaises(asyncio.CancelledError):
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_subscriptions())
self.async_run_with_timeout(self.listening_task)
self.assertTrue(
self._is_logged(
"ERROR",
"Unexpected error occurred when listening to order book streams. Retrying in 5 seconds..."
))
def test_listen_for_trades_cancelled_when_listening(self):
mock_queue = MagicMock()
mock_queue.get.side_effect = asyncio.CancelledError()
self.ob_data_source._message_queue[
CONSTANTS.TRADE_EVENT_TYPE] = mock_queue
msg_queue: asyncio.Queue = asyncio.Queue()
with self.assertRaises(asyncio.CancelledError):
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_trades(self.ev_loop, msg_queue))
self.async_run_with_timeout(self.listening_task)
def test_listen_for_trades_logs_exception(self):
incomplete_resp = {
"type": "message",
"topic": f"/market/match:{self.trading_pair}",
}
mock_queue = AsyncMock()
mock_queue.get.side_effect = [
incomplete_resp, asyncio.CancelledError()
]
self.ob_data_source._message_queue[
CONSTANTS.TRADE_EVENT_TYPE] = mock_queue
msg_queue: asyncio.Queue = asyncio.Queue()
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_trades(self.ev_loop, msg_queue))
try:
self.async_run_with_timeout(self.listening_task)
except asyncio.CancelledError:
pass
self.assertTrue(
self._is_logged(
"ERROR",
"Unexpected error when processing public trade updates from exchange"
))
def test_listen_for_trades_successful(self):
mock_queue = AsyncMock()
trade_event = {
"type": "message",
"topic": f"/market/match:{self.trading_pair}",
"subject": "trade.l3match",
"data": {
"sequence": "1545896669145",
"type": "match",
"symbol": self.trading_pair,
"side": "buy",
"price": "0.08200000000000000000",
"size": "0.01022222000000000000",
"tradeId": "5c24c5da03aa673885cd67aa",
"takerOrderId": "5c24c5d903aa6772d55b371e",
"makerOrderId": "5c2187d003aa677bd09d5c93",
"time": "1545913818099033203"
}
}
mock_queue.get.side_effect = [trade_event, asyncio.CancelledError()]
self.ob_data_source._message_queue[
CONSTANTS.TRADE_EVENT_TYPE] = mock_queue
msg_queue: asyncio.Queue = asyncio.Queue()
try:
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_trades(self.ev_loop, msg_queue))
except asyncio.CancelledError:
pass
msg: OrderBookMessage = self.async_run_with_timeout(msg_queue.get())
self.assertTrue(trade_event["data"]["tradeId"], msg.trade_id)
def test_listen_for_order_book_diffs_cancelled(self):
mock_queue = AsyncMock()
mock_queue.get.side_effect = asyncio.CancelledError()
self.ob_data_source._message_queue[
CONSTANTS.DIFF_EVENT_TYPE] = mock_queue
msg_queue: asyncio.Queue = asyncio.Queue()
with self.assertRaises(asyncio.CancelledError):
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_order_book_diffs(
self.ev_loop, msg_queue))
self.async_run_with_timeout(self.listening_task)
def test_listen_for_order_book_diffs_logs_exception(self):
incomplete_resp = {
"type": "message",
"topic": f"/market/level2:{self.trading_pair}",
}
mock_queue = AsyncMock()
mock_queue.get.side_effect = [
incomplete_resp, asyncio.CancelledError()
]
self.ob_data_source._message_queue[
CONSTANTS.DIFF_EVENT_TYPE] = mock_queue
msg_queue: asyncio.Queue = asyncio.Queue()
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_order_book_diffs(
self.ev_loop, msg_queue))
try:
self.async_run_with_timeout(self.listening_task)
except asyncio.CancelledError:
pass
self.assertTrue(
self._is_logged(
"ERROR",
"Unexpected error when processing public order book updates from exchange"
))
def test_listen_for_order_book_diffs_successful(self):
mock_queue = AsyncMock()
diff_event = {
"type": "message",
"topic": "/market/level2:BTC-USDT",
"subject": "trade.l2update",
"data": {
"sequenceStart": 1545896669105,
"sequenceEnd": 1545896669106,
"symbol": f"{self.trading_pair}",
"changes": {
"asks": [["6", "1", "1545896669105"]],
"bids": [["4", "1", "1545896669106"]]
}
}
}
mock_queue.get.side_effect = [diff_event, asyncio.CancelledError()]
self.ob_data_source._message_queue[
CONSTANTS.DIFF_EVENT_TYPE] = mock_queue
msg_queue: asyncio.Queue = asyncio.Queue()
try:
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_order_book_diffs(
self.ev_loop, msg_queue))
except asyncio.CancelledError:
pass
msg: OrderBookMessage = self.async_run_with_timeout(msg_queue.get())
self.assertTrue(diff_event["data"]["sequenceEnd"], msg.update_id)
@aioresponses()
def test_listen_for_order_book_snapshots_cancelled_when_fetching_snapshot(
self, mock_api):
url = web_utils.rest_url(path_url=CONSTANTS.SNAPSHOT_NO_AUTH_PATH_URL)
regex_url = re.compile(f"^{url}".replace(".",
r"\.").replace("?", r"\?"))
mock_api.get(regex_url, exception=asyncio.CancelledError)
with self.assertRaises(asyncio.CancelledError):
self.async_run_with_timeout(
self.ob_data_source.listen_for_order_book_snapshots(
self.ev_loop, asyncio.Queue()))
@aioresponses()
@patch(
"hummingbot.connector.exchange.kucoin.kucoin_api_order_book_data_source"
".KucoinAPIOrderBookDataSource._sleep")
def test_listen_for_order_book_snapshots_log_exception(
self, mock_api, sleep_mock):
msg_queue: asyncio.Queue = asyncio.Queue()
sleep_mock.side_effect = asyncio.CancelledError
url = web_utils.rest_url(path_url=CONSTANTS.SNAPSHOT_NO_AUTH_PATH_URL)
regex_url = re.compile(f"^{url}".replace(".",
r"\.").replace("?", r"\?"))
mock_api.get(regex_url, exception=Exception)
try:
self.async_run_with_timeout(
self.ob_data_source.listen_for_order_book_snapshots(
self.ev_loop, msg_queue))
except asyncio.CancelledError:
pass
self.assertTrue(
self._is_logged(
"ERROR",
f"Unexpected error fetching order book snapshot for {self.trading_pair}."
))
@aioresponses()
def test_listen_for_order_book_snapshots_successful(
self,
mock_api,
):
msg_queue: asyncio.Queue = asyncio.Queue()
url = web_utils.rest_url(path_url=CONSTANTS.SNAPSHOT_NO_AUTH_PATH_URL)
regex_url = re.compile(f"^{url}".replace(".",
r"\.").replace("?", r"\?"))
snapshot_data = {
"code": "200000",
"data": {
"sequence": "3262786978",
"time": 1550653727731,
"bids": [["6500.12", "0.45054140"], ["6500.11", "0.45054140"]],
"asks": [["6500.16", "0.57753524"], ["6500.15", "0.57753524"]]
}
}
mock_api.get(regex_url, body=json.dumps(snapshot_data))
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_order_book_snapshots(
self.ev_loop, msg_queue))
msg: OrderBookMessage = self.async_run_with_timeout(msg_queue.get())
self.assertEqual(int(snapshot_data["data"]["sequence"]), msg.update_id)
class TestKucoinAPIOrderBookDataSource(unittest.TestCase):
# logging.Level required to receive logs from the data source logger
level = 0
@classmethod
def setUpClass(cls) -> None:
super().setUpClass()
cls.ev_loop = asyncio.get_event_loop()
cls.base_asset = "COINALPHA"
cls.quote_asset = "HBOT"
cls.trading_pair = f"{cls.base_asset}-{cls.quote_asset}"
cls.ws_endpoint = "ws://someEndpoint"
def setUp(self) -> None:
super().setUp()
self.log_records = []
self.async_task = None
self.mocking_assistant = NetworkMockingAssistant()
client_config_map = ClientConfigAdapter(ClientConfigMap())
self.connector = KucoinExchange(client_config_map=client_config_map,
kucoin_api_key="",
kucoin_passphrase="",
kucoin_secret_key="",
trading_pairs=[],
trading_required=False)
self.ob_data_source = KucoinAPIOrderBookDataSource(
trading_pairs=[self.trading_pair],
connector=self.connector,
api_factory=self.connector._web_assistants_factory)
self.ob_data_source.logger().setLevel(1)
self.ob_data_source.logger().addHandler(self)
self.connector._set_trading_pair_symbol_map(
bidict({self.trading_pair: self.trading_pair}))
def tearDown(self) -> None:
self.async_task and self.async_task.cancel()
super().tearDown()
def handle(self, record):
self.log_records.append(record)
def _is_logged(self, log_level: str, message: str) -> bool:
return any(
record.levelname == log_level and record.getMessage() == message
for record in self.log_records)
def async_run_with_timeout(self, coroutine: Awaitable, timeout: int = 1):
ret = self.ev_loop.run_until_complete(
asyncio.wait_for(coroutine, timeout))
return ret
@staticmethod
def get_snapshot_mock() -> Dict:
snapshot = {
"code": "200000",
"data": {
"time": 1630556205455,
"sequence": "1630556205456",
"bids": [["0.3003", "4146.5645"]],
"asks": [["0.3004", "1553.6412"]]
}
}
return snapshot
@aioresponses()
def test_get_new_order_book(self, mock_api):
url = web_utils.public_rest_url(
path_url=CONSTANTS.SNAPSHOT_NO_AUTH_PATH_URL)
regex_url = re.compile(f"^{url}".replace(".",
r"\.").replace("?", r"\?"))
resp = self.get_snapshot_mock()
mock_api.get(regex_url, body=json.dumps(resp))
ret = self.async_run_with_timeout(
coroutine=self.ob_data_source.get_new_order_book(
self.trading_pair))
bid_entries = list(ret.bid_entries())
ask_entries = list(ret.ask_entries())
self.assertEqual(1, len(bid_entries))
self.assertEqual(0.3003, bid_entries[0].price)
self.assertEqual(4146.5645, bid_entries[0].amount)
self.assertEqual(int(resp["data"]["sequence"]),
bid_entries[0].update_id)
self.assertEqual(1, len(ask_entries))
self.assertEqual(0.3004, ask_entries[0].price)
self.assertEqual(1553.6412, ask_entries[0].amount)
self.assertEqual(int(resp["data"]["sequence"]),
ask_entries[0].update_id)
@aioresponses()
@patch("aiohttp.ClientSession.ws_connect", new_callable=AsyncMock)
@patch(
"hummingbot.connector.exchange.kucoin.kucoin_web_utils.next_message_id"
)
def test_listen_for_subscriptions_subscribes_to_trades_and_order_diffs(
self, mock_api, id_mock, ws_connect_mock):
id_mock.side_effect = [1, 2]
url = web_utils.public_rest_url(
path_url=CONSTANTS.PUBLIC_WS_DATA_PATH_URL)
resp = {
"code": "200000",
"data": {
"instanceServers": [{
"endpoint": "wss://test.url/endpoint",
"protocol": "websocket",
"encrypt": True,
"pingInterval": 50000,
"pingTimeout": 10000
}],
"token":
"testToken"
}
}
mock_api.post(url, body=json.dumps(resp))
ws_connect_mock.return_value = self.mocking_assistant.create_websocket_mock(
)
result_subscribe_trades = {"type": "ack", "id": 1}
result_subscribe_diffs = {"type": "ack", "id": 2}
self.mocking_assistant.add_websocket_aiohttp_message(
websocket_mock=ws_connect_mock.return_value,
message=json.dumps(result_subscribe_trades))
self.mocking_assistant.add_websocket_aiohttp_message(
websocket_mock=ws_connect_mock.return_value,
message=json.dumps(result_subscribe_diffs))
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_subscriptions())
self.mocking_assistant.run_until_all_aiohttp_messages_delivered(
ws_connect_mock.return_value)
sent_subscription_messages = self.mocking_assistant.json_messages_sent_through_websocket(
websocket_mock=ws_connect_mock.return_value)
self.assertEqual(2, len(sent_subscription_messages))
expected_trade_subscription = {
"id": 1,
"type": "subscribe",
"topic": f"/market/match:{self.trading_pair}",
"privateChannel": False,
"response": False
}
self.assertEqual(expected_trade_subscription,
sent_subscription_messages[0])
expected_diff_subscription = {
"id": 2,
"type": "subscribe",
"topic": f"/market/level2:{self.trading_pair}",
"privateChannel": False,
"response": False
}
self.assertEqual(expected_diff_subscription,
sent_subscription_messages[1])
self.assertTrue(
self._is_logged(
"INFO",
"Subscribed to public order book and trade channels..."))
@aioresponses()
@patch("aiohttp.ClientSession.ws_connect", new_callable=AsyncMock)
@patch(
"hummingbot.connector.exchange.kucoin.kucoin_web_utils.next_message_id"
)
@patch(
"hummingbot.connector.exchange.kucoin.kucoin_api_order_book_data_source.KucoinAPIOrderBookDataSource._time"
)
def test_listen_for_subscriptions_sends_ping_message_before_ping_interval_finishes(
self, mock_api, time_mock, id_mock, ws_connect_mock):
id_mock.side_effect = [1, 2, 3, 4]
time_mock.side_effect = [
1000, 1100, 1101, 1102
] # Simulate first ping interval is already due
url = web_utils.public_rest_url(
path_url=CONSTANTS.PUBLIC_WS_DATA_PATH_URL)
resp = {
"code": "200000",
"data": {
"instanceServers": [{
"endpoint": "wss://test.url/endpoint",
"protocol": "websocket",
"encrypt": True,
"pingInterval": 20000,
"pingTimeout": 10000
}],
"token":
"testToken"
}
}
mock_api.post(url, body=json.dumps(resp))
ws_connect_mock.return_value = self.mocking_assistant.create_websocket_mock(
)
result_subscribe_trades = {"type": "ack", "id": 1}
result_subscribe_diffs = {"type": "ack", "id": 2}
self.mocking_assistant.add_websocket_aiohttp_message(
websocket_mock=ws_connect_mock.return_value,
message=json.dumps(result_subscribe_trades))
self.mocking_assistant.add_websocket_aiohttp_message(
websocket_mock=ws_connect_mock.return_value,
message=json.dumps(result_subscribe_diffs))
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_subscriptions())
self.mocking_assistant.run_until_all_aiohttp_messages_delivered(
ws_connect_mock.return_value)
sent_messages = self.mocking_assistant.json_messages_sent_through_websocket(
websocket_mock=ws_connect_mock.return_value)
expected_ping_message = {
"id": 3,
"type": "ping",
}
self.assertEqual(expected_ping_message, sent_messages[-1])
@aioresponses()
@patch("aiohttp.ClientSession.ws_connect", new_callable=AsyncMock)
@patch(
"hummingbot.core.data_type.order_book_tracker_data_source.OrderBookTrackerDataSource._sleep"
)
def test_listen_for_subscriptions_raises_cancel_exception(
self, mock_api, _, ws_connect_mock):
url = web_utils.public_rest_url(
path_url=CONSTANTS.PUBLIC_WS_DATA_PATH_URL)
resp = {
"code": "200000",
"data": {
"instanceServers": [{
"endpoint": "wss://test.url/endpoint",
"protocol": "websocket",
"encrypt": True,
"pingInterval": 50000,
"pingTimeout": 10000
}],
"token":
"testToken"
}
}
mock_api.post(url, body=json.dumps(resp))
ws_connect_mock.side_effect = asyncio.CancelledError
with self.assertRaises(asyncio.CancelledError):
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_subscriptions())
self.async_run_with_timeout(self.listening_task)
@aioresponses()
@patch("aiohttp.ClientSession.ws_connect", new_callable=AsyncMock)
@patch(
"hummingbot.core.data_type.order_book_tracker_data_source.OrderBookTrackerDataSource._sleep"
)
def test_listen_for_subscriptions_logs_exception_details(
self, mock_api, sleep_mock, ws_connect_mock):
url = web_utils.public_rest_url(
path_url=CONSTANTS.PUBLIC_WS_DATA_PATH_URL)
resp = {
"code": "200000",
"data": {
"instanceServers": [{
"endpoint": "wss://test.url/endpoint",
"protocol": "websocket",
"encrypt": True,
"pingInterval": 50000,
"pingTimeout": 10000
}],
"token":
"testToken"
}
}
mock_api.post(url, body=json.dumps(resp))
sleep_mock.side_effect = asyncio.CancelledError
ws_connect_mock.side_effect = Exception("TEST ERROR.")
with self.assertRaises(asyncio.CancelledError):
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_subscriptions())
self.async_run_with_timeout(self.listening_task)
self.assertTrue(
self._is_logged(
"ERROR",
"Unexpected error occurred when listening to order book streams. Retrying in 5 seconds..."
))
def test_listen_for_trades_cancelled_when_listening(self):
mock_queue = MagicMock()
mock_queue.get.side_effect = asyncio.CancelledError()
self.ob_data_source._message_queue[
self.ob_data_source._trade_messages_queue_key] = mock_queue
msg_queue: asyncio.Queue = asyncio.Queue()
with self.assertRaises(asyncio.CancelledError):
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_trades(self.ev_loop, msg_queue))
self.async_run_with_timeout(self.listening_task)
def test_listen_for_trades_logs_exception(self):
incomplete_resp = {
"type": "message",
"topic": f"/market/match:{self.trading_pair}",
}
mock_queue = AsyncMock()
mock_queue.get.side_effect = [
incomplete_resp, asyncio.CancelledError()
]
self.ob_data_source._message_queue[
self.ob_data_source._trade_messages_queue_key] = mock_queue
msg_queue: asyncio.Queue = asyncio.Queue()
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_trades(self.ev_loop, msg_queue))
try:
self.async_run_with_timeout(self.listening_task)
except asyncio.CancelledError:
pass
self.assertTrue(
self._is_logged(
"ERROR",
"Unexpected error when processing public trade updates from exchange"
))
def test_listen_for_trades_successful(self):
mock_queue = AsyncMock()
trade_event = {
"type": "message",
"topic": f"/market/match:{self.trading_pair}",
"subject": "trade.l3match",
"data": {
"sequence": "1545896669145",
"type": "match",
"symbol": self.trading_pair,
"side": "buy",
"price": "0.08200000000000000000",
"size": "0.01022222000000000000",
"tradeId": "5c24c5da03aa673885cd67aa",
"takerOrderId": "5c24c5d903aa6772d55b371e",
"makerOrderId": "5c2187d003aa677bd09d5c93",
"time": "1545913818099033203"
}
}
mock_queue.get.side_effect = [trade_event, asyncio.CancelledError()]
self.ob_data_source._message_queue[
self.ob_data_source._trade_messages_queue_key] = mock_queue
msg_queue: asyncio.Queue = asyncio.Queue()
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_trades(self.ev_loop, msg_queue))
msg: OrderBookMessage = self.async_run_with_timeout(msg_queue.get())
self.assertTrue(trade_event["data"]["tradeId"], msg.trade_id)
def test_listen_for_order_book_diffs_cancelled(self):
mock_queue = AsyncMock()
mock_queue.get.side_effect = asyncio.CancelledError()
self.ob_data_source._message_queue[
self.ob_data_source._diff_messages_queue_key] = mock_queue
msg_queue: asyncio.Queue = asyncio.Queue()
with self.assertRaises(asyncio.CancelledError):
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_order_book_diffs(
self.ev_loop, msg_queue))
self.async_run_with_timeout(self.listening_task)
def test_listen_for_order_book_diffs_logs_exception(self):
incomplete_resp = {
"type": "message",
"topic": f"/market/level2:{self.trading_pair}",
}
mock_queue = AsyncMock()
mock_queue.get.side_effect = [
incomplete_resp, asyncio.CancelledError()
]
self.ob_data_source._message_queue[
self.ob_data_source._diff_messages_queue_key] = mock_queue
msg_queue: asyncio.Queue = asyncio.Queue()
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_order_book_diffs(
self.ev_loop, msg_queue))
try:
self.async_run_with_timeout(self.listening_task)
except asyncio.CancelledError:
pass
self.assertTrue(
self._is_logged(
"ERROR",
"Unexpected error when processing public order book updates from exchange"
))
def test_listen_for_order_book_diffs_successful(self):
mock_queue = AsyncMock()
diff_event = {
"type": "message",
"topic": "/market/level2:BTC-USDT",
"subject": "trade.l2update",
"data": {
"sequenceStart": 1545896669105,
"sequenceEnd": 1545896669106,
"symbol": f"{self.trading_pair}",
"changes": {
"asks": [["6", "1", "1545896669105"]],
"bids": [["4", "1", "1545896669106"]]
}
}
}
mock_queue.get.side_effect = [diff_event, asyncio.CancelledError()]
self.ob_data_source._message_queue[
self.ob_data_source._diff_messages_queue_key] = mock_queue
msg_queue: asyncio.Queue = asyncio.Queue()
try:
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_order_book_diffs(
self.ev_loop, msg_queue))
except asyncio.CancelledError:
pass
msg: OrderBookMessage = self.async_run_with_timeout(msg_queue.get())
self.assertTrue(diff_event["data"]["sequenceEnd"], msg.update_id)
@aioresponses()
def test_listen_for_order_book_snapshots_cancelled_when_fetching_snapshot(
self, mock_api):
url = web_utils.public_rest_url(
path_url=CONSTANTS.SNAPSHOT_NO_AUTH_PATH_URL)
regex_url = re.compile(f"^{url}".replace(".",
r"\.").replace("?", r"\?"))
mock_api.get(regex_url, exception=asyncio.CancelledError)
with self.assertRaises(asyncio.CancelledError):
self.async_run_with_timeout(
self.ob_data_source.listen_for_order_book_snapshots(
self.ev_loop, asyncio.Queue()))
@aioresponses()
@patch(
"hummingbot.connector.exchange.kucoin.kucoin_api_order_book_data_source"
".KucoinAPIOrderBookDataSource._sleep")
def test_listen_for_order_book_snapshots_log_exception(
self, mock_api, sleep_mock):
msg_queue: asyncio.Queue = asyncio.Queue()
sleep_mock.side_effect = asyncio.CancelledError
url = web_utils.public_rest_url(
path_url=CONSTANTS.SNAPSHOT_NO_AUTH_PATH_URL)
regex_url = re.compile(f"^{url}".replace(".",
r"\.").replace("?", r"\?"))
mock_api.get(regex_url, exception=Exception)
try:
self.async_run_with_timeout(
self.ob_data_source.listen_for_order_book_snapshots(
self.ev_loop, msg_queue))
except asyncio.CancelledError:
pass
self.assertTrue(
self._is_logged(
"ERROR",
f"Unexpected error fetching order book snapshot for {self.trading_pair}."
))
@aioresponses()
def test_listen_for_order_book_snapshots_successful(
self,
mock_api,
):
msg_queue: asyncio.Queue = asyncio.Queue()
url = web_utils.public_rest_url(
path_url=CONSTANTS.SNAPSHOT_NO_AUTH_PATH_URL)
regex_url = re.compile(f"^{url}".replace(".",
r"\.").replace("?", r"\?"))
snapshot_data = {
"code": "200000",
"data": {
"sequence": "3262786978",
"time": 1550653727731,
"bids": [["6500.12", "0.45054140"], ["6500.11", "0.45054140"]],
"asks": [["6500.16", "0.57753524"], ["6500.15", "0.57753524"]]
}
}
mock_api.get(regex_url, body=json.dumps(snapshot_data))
self.listening_task = self.ev_loop.create_task(
self.ob_data_source.listen_for_order_book_snapshots(
self.ev_loop, msg_queue))
msg: OrderBookMessage = self.async_run_with_timeout(msg_queue.get())
self.assertEqual(int(snapshot_data["data"]["sequence"]), msg.update_id)