stable/freqtrade/tests/exchange/test_exchange.py

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# pragma pylint: disable=missing-docstring, C0103, bad-continuation, global-statement
# pragma pylint: disable=protected-access
import logging
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from copy import deepcopy
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from random import randint
from unittest.mock import MagicMock, PropertyMock
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import ccxt
import pytest
import freqtrade.exchange as exchange
from freqtrade import OperationalException, DependencyException, TemporaryError
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from freqtrade.exchange import (init, validate_pairs, buy, sell, get_balance, get_balances,
get_ticker, get_ticker_history, cancel_order, get_name, get_fee,
get_id, get_pair_detail_url, get_amount_lots)
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from freqtrade.tests.conftest import log_has
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API_INIT = False
def maybe_init_api(conf, mocker, force=False):
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global API_INIT
if force or not API_INIT:
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mocker.patch('freqtrade.exchange.validate_pairs',
side_effect=lambda s: True)
init(config=conf)
API_INIT = True
def test_init(default_conf, mocker, caplog):
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caplog.set_level(logging.INFO)
maybe_init_api(default_conf, mocker, True)
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assert log_has('Instance is running with dry_run enabled', caplog.record_tuples)
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def test_init_exception(default_conf):
default_conf['exchange']['name'] = 'wrong_exchange_name'
with pytest.raises(
OperationalException,
match='Exchange {} is not supported'.format(default_conf['exchange']['name'])):
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init(config=default_conf)
def test_validate_pairs(default_conf, mocker):
api_mock = MagicMock()
api_mock.load_markets = MagicMock(return_value={
'ETH/BTC': '', 'LTC/BTC': '', 'XRP/BTC': '', 'NEO/BTC': ''
})
id_mock = PropertyMock(return_value='test_exchange')
type(api_mock).id = id_mock
mocker.patch('freqtrade.exchange._API', api_mock)
mocker.patch.dict('freqtrade.exchange._CONF', default_conf)
validate_pairs(default_conf['exchange']['pair_whitelist'])
def test_validate_pairs_not_available(default_conf, mocker):
api_mock = MagicMock()
api_mock.load_markets = MagicMock(return_value={})
mocker.patch('freqtrade.exchange._API', api_mock)
mocker.patch.dict('freqtrade.exchange._CONF', default_conf)
with pytest.raises(OperationalException, match=r'not available'):
validate_pairs(default_conf['exchange']['pair_whitelist'])
def test_validate_pairs_not_compatible(default_conf, mocker):
api_mock = MagicMock()
api_mock.load_markets = MagicMock(return_value={
'ETH/BTC': '', 'TKN/BTC': '', 'TRST/BTC': '', 'SWT/BTC': '', 'BCC/BTC': ''
})
conf = deepcopy(default_conf)
conf['stake_currency'] = 'ETH'
mocker.patch('freqtrade.exchange._API', api_mock)
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mocker.patch.dict('freqtrade.exchange._CONF', conf)
with pytest.raises(OperationalException, match=r'not compatible'):
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validate_pairs(conf['exchange']['pair_whitelist'])
def test_validate_pairs_exception(default_conf, mocker, caplog):
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caplog.set_level(logging.INFO)
api_mock = MagicMock()
api_mock.name = 'Binance'
mocker.patch('freqtrade.exchange._API', api_mock)
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mocker.patch.dict('freqtrade.exchange._CONF', default_conf)
api_mock.load_markets = MagicMock(return_value={})
with pytest.raises(OperationalException, match=r'Pair ETH/BTC is not available at Binance'):
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validate_pairs(default_conf['exchange']['pair_whitelist'])
api_mock.load_markets = MagicMock(side_effect=ccxt.BaseError())
validate_pairs(default_conf['exchange']['pair_whitelist'])
assert log_has('Unable to validate pairs (assuming they are correct). Reason: ',
caplog.record_tuples)
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def test_validate_pairs_stake_exception(default_conf, mocker, caplog):
caplog.set_level(logging.INFO)
conf = deepcopy(default_conf)
conf['stake_currency'] = 'ETH'
api_mock = MagicMock()
api_mock.name = 'binance'
mocker.patch('freqtrade.exchange._API', api_mock)
mocker.patch.dict('freqtrade.exchange._CONF', conf)
with pytest.raises(
OperationalException,
match=r'Pair ETH/BTC not compatible with stake_currency: ETH'
):
validate_pairs(default_conf['exchange']['pair_whitelist'])
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def test_buy_dry_run(default_conf, mocker):
default_conf['dry_run'] = True
mocker.patch.dict('freqtrade.exchange._CONF', default_conf)
order = buy(pair='ETH/BTC', rate=200, amount=1)
assert 'id' in order
assert 'dry_run_buy_' in order['id']
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def test_buy_prod(default_conf, mocker):
api_mock = MagicMock()
order_id = 'test_prod_buy_{}'.format(randint(0, 10 ** 6))
api_mock.create_limit_buy_order = MagicMock(return_value={
'id': order_id,
'info': {
'foo': 'bar'
}
})
mocker.patch('freqtrade.exchange._API', api_mock)
default_conf['dry_run'] = False
mocker.patch.dict('freqtrade.exchange._CONF', default_conf)
order = buy(pair='ETH/BTC', rate=200, amount=1)
assert 'id' in order
assert 'info' in order
assert order['id'] == order_id
# test exception handling
with pytest.raises(DependencyException):
api_mock.create_limit_buy_order = MagicMock(side_effect=ccxt.InsufficientFunds)
mocker.patch('freqtrade.exchange._API', api_mock)
buy(pair='ETH/BTC', rate=200, amount=1)
with pytest.raises(DependencyException):
api_mock.create_limit_buy_order = MagicMock(side_effect=ccxt.InvalidOrder)
mocker.patch('freqtrade.exchange._API', api_mock)
buy(pair='ETH/BTC', rate=200, amount=1)
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with pytest.raises(TemporaryError):
api_mock.create_limit_buy_order = MagicMock(side_effect=ccxt.NetworkError)
mocker.patch('freqtrade.exchange._API', api_mock)
buy(pair='ETH/BTC', rate=200, amount=1)
with pytest.raises(OperationalException):
api_mock.create_limit_buy_order = MagicMock(side_effect=ccxt.BaseError)
mocker.patch('freqtrade.exchange._API', api_mock)
buy(pair='ETH/BTC', rate=200, amount=1)
def test_sell_dry_run(default_conf, mocker):
default_conf['dry_run'] = True
mocker.patch.dict('freqtrade.exchange._CONF', default_conf)
order = sell(pair='ETH/BTC', rate=200, amount=1)
assert 'id' in order
assert 'dry_run_sell_' in order['id']
def test_sell_prod(default_conf, mocker):
api_mock = MagicMock()
order_id = 'test_prod_sell_{}'.format(randint(0, 10 ** 6))
api_mock.create_limit_sell_order = MagicMock(return_value={
'id': order_id,
'info': {
'foo': 'bar'
}
})
mocker.patch('freqtrade.exchange._API', api_mock)
default_conf['dry_run'] = False
mocker.patch.dict('freqtrade.exchange._CONF', default_conf)
order = sell(pair='ETH/BTC', rate=200, amount=1)
assert 'id' in order
assert 'info' in order
assert order['id'] == order_id
# test exception handling
with pytest.raises(DependencyException):
api_mock.create_limit_sell_order = MagicMock(side_effect=ccxt.InsufficientFunds)
mocker.patch('freqtrade.exchange._API', api_mock)
sell(pair='ETH/BTC', rate=200, amount=1)
with pytest.raises(DependencyException):
api_mock.create_limit_sell_order = MagicMock(side_effect=ccxt.InvalidOrder)
mocker.patch('freqtrade.exchange._API', api_mock)
sell(pair='ETH/BTC', rate=200, amount=1)
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with pytest.raises(TemporaryError):
api_mock.create_limit_sell_order = MagicMock(side_effect=ccxt.NetworkError)
mocker.patch('freqtrade.exchange._API', api_mock)
sell(pair='ETH/BTC', rate=200, amount=1)
with pytest.raises(OperationalException):
api_mock.create_limit_sell_order = MagicMock(side_effect=ccxt.BaseError)
mocker.patch('freqtrade.exchange._API', api_mock)
sell(pair='ETH/BTC', rate=200, amount=1)
def test_get_balance_dry_run(default_conf, mocker):
default_conf['dry_run'] = True
mocker.patch.dict('freqtrade.exchange._CONF', default_conf)
assert get_balance(currency='BTC') == 999.9
def test_get_balance_prod(default_conf, mocker):
api_mock = MagicMock()
api_mock.fetch_balance = MagicMock(return_value={'BTC': {'free': 123.4}})
mocker.patch('freqtrade.exchange._API', api_mock)
default_conf['dry_run'] = False
mocker.patch.dict('freqtrade.exchange._CONF', default_conf)
assert get_balance(currency='BTC') == 123.4
with pytest.raises(OperationalException):
api_mock.fetch_balance = MagicMock(side_effect=ccxt.BaseError)
mocker.patch('freqtrade.exchange._API', api_mock)
get_balance(currency='BTC')
def test_get_balances_dry_run(default_conf, mocker):
default_conf['dry_run'] = True
mocker.patch.dict('freqtrade.exchange._CONF', default_conf)
assert get_balances() == {}
def test_get_balances_prod(default_conf, mocker):
balance_item = {
'free': 10.0,
'total': 10.0,
'used': 0.0
}
api_mock = MagicMock()
api_mock.fetch_balance = MagicMock(return_value={
'1ST': balance_item,
'2ST': balance_item,
'3ST': balance_item
})
mocker.patch('freqtrade.exchange._API', api_mock)
default_conf['dry_run'] = False
mocker.patch.dict('freqtrade.exchange._CONF', default_conf)
assert len(get_balances()) == 3
assert get_balances()['1ST']['free'] == 10.0
assert get_balances()['1ST']['total'] == 10.0
assert get_balances()['1ST']['used'] == 0.0
with pytest.raises(TemporaryError):
api_mock.fetch_balance = MagicMock(side_effect=ccxt.NetworkError)
mocker.patch('freqtrade.exchange._API', api_mock)
get_balances()
assert api_mock.fetch_balance.call_count == exchange.API_RETRY_COUNT + 1
with pytest.raises(OperationalException):
api_mock.fetch_balance = MagicMock(side_effect=ccxt.BaseError)
mocker.patch('freqtrade.exchange._API', api_mock)
get_balances()
assert api_mock.fetch_balance.call_count == 1
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# This test is somewhat redundant with
# test_exchange_bittrex.py::test_exchange_bittrex_get_ticker
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def test_get_ticker(default_conf, mocker):
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maybe_init_api(default_conf, mocker)
api_mock = MagicMock()
tick = {
'symbol': 'ETH/BTC',
'bid': 0.00001098,
'ask': 0.00001099,
'last': 0.0001,
}
api_mock.fetch_ticker = MagicMock(return_value=tick)
mocker.patch('freqtrade.exchange._API', api_mock)
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# retrieve original ticker
ticker = get_ticker(pair='ETH/BTC')
assert ticker['bid'] == 0.00001098
assert ticker['ask'] == 0.00001099
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# change the ticker
tick = {
'symbol': 'ETH/BTC',
'bid': 0.5,
'ask': 1,
'last': 42,
}
api_mock.fetch_ticker = MagicMock(return_value=tick)
mocker.patch('freqtrade.exchange._API', api_mock)
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# if not caching the result we should get the same ticker
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# if not fetching a new result we should get the cached ticker
ticker = get_ticker(pair='ETH/BTC')
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assert ticker['bid'] == 0.5
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assert ticker['ask'] == 1
with pytest.raises(TemporaryError): # test retrier
api_mock.fetch_ticker = MagicMock(side_effect=ccxt.NetworkError)
mocker.patch('freqtrade.exchange._API', api_mock)
get_ticker(pair='ETH/BTC', refresh=True)
with pytest.raises(OperationalException):
api_mock.fetch_ticker = MagicMock(side_effect=ccxt.BaseError)
mocker.patch('freqtrade.exchange._API', api_mock)
get_ticker(pair='ETH/BTC', refresh=True)
def make_fetch_ohlcv_mock(data):
def fetch_ohlcv_mock(pair, timeframe, since):
if since:
assert since > data[-1][0]
return []
return data
return fetch_ohlcv_mock
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def test_get_ticker_history(default_conf, mocker):
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api_mock = MagicMock()
tick = [
[
1511686200000, # unix timestamp ms
1, # open
2, # high
3, # low
4, # close
5, # volume (in quote currency)
]
]
type(api_mock).has = PropertyMock(return_value={'fetchOHLCV': True})
api_mock.fetch_ohlcv = MagicMock(side_effect=make_fetch_ohlcv_mock(tick))
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mocker.patch('freqtrade.exchange._API', api_mock)
# retrieve original ticker
ticks = get_ticker_history('ETH/BTC', default_conf['ticker_interval'])
assert ticks[0][0] == 1511686200000
assert ticks[0][1] == 1
assert ticks[0][2] == 2
assert ticks[0][3] == 3
assert ticks[0][4] == 4
assert ticks[0][5] == 5
# change ticker and ensure tick changes
new_tick = [
[
1511686210000, # unix timestamp ms
6, # open
7, # high
8, # low
9, # close
10, # volume (in quote currency)
]
]
api_mock.fetch_ohlcv = MagicMock(side_effect=make_fetch_ohlcv_mock(new_tick))
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mocker.patch('freqtrade.exchange._API', api_mock)
ticks = get_ticker_history('ETH/BTC', default_conf['ticker_interval'])
assert ticks[0][0] == 1511686210000
assert ticks[0][1] == 6
assert ticks[0][2] == 7
assert ticks[0][3] == 8
assert ticks[0][4] == 9
assert ticks[0][5] == 10
with pytest.raises(TemporaryError): # test retrier
api_mock.fetch_ohlcv = MagicMock(side_effect=ccxt.NetworkError)
mocker.patch('freqtrade.exchange._API', api_mock)
# new symbol to get around cache
get_ticker_history('ABCD/BTC', default_conf['ticker_interval'])
with pytest.raises(OperationalException):
api_mock.fetch_ohlcv = MagicMock(side_effect=ccxt.BaseError)
mocker.patch('freqtrade.exchange._API', api_mock)
# new symbol to get around cache
get_ticker_history('EFGH/BTC', default_conf['ticker_interval'])
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def test_cancel_order_dry_run(default_conf, mocker):
default_conf['dry_run'] = True
mocker.patch.dict('freqtrade.exchange._CONF', default_conf)
assert cancel_order(order_id='123', pair='TKN/BTC') is None
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# Ensure that if not dry_run, we should call API
def test_cancel_order(default_conf, mocker):
default_conf['dry_run'] = False
mocker.patch.dict('freqtrade.exchange._CONF', default_conf)
api_mock = MagicMock()
api_mock.cancel_order = MagicMock(return_value=123)
mocker.patch('freqtrade.exchange._API', api_mock)
assert cancel_order(order_id='_', pair='TKN/BTC') == 123
with pytest.raises(TemporaryError):
api_mock.cancel_order = MagicMock(side_effect=ccxt.NetworkError)
mocker.patch('freqtrade.exchange._API', api_mock)
cancel_order(order_id='_', pair='TKN/BTC')
assert api_mock.cancel_order.call_count == exchange.API_RETRY_COUNT + 1
with pytest.raises(DependencyException):
api_mock.cancel_order = MagicMock(side_effect=ccxt.InvalidOrder)
mocker.patch('freqtrade.exchange._API', api_mock)
cancel_order(order_id='_', pair='TKN/BTC')
assert api_mock.cancel_order.call_count == exchange.API_RETRY_COUNT + 1
with pytest.raises(OperationalException):
api_mock.cancel_order = MagicMock(side_effect=ccxt.BaseError)
mocker.patch('freqtrade.exchange._API', api_mock)
cancel_order(order_id='_', pair='TKN/BTC')
assert api_mock.cancel_order.call_count == 1
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def test_get_order(default_conf, mocker):
default_conf['dry_run'] = True
mocker.patch.dict('freqtrade.exchange._CONF', default_conf)
order = MagicMock()
order.myid = 123
exchange._DRY_RUN_OPEN_ORDERS['X'] = order
print(exchange.get_order('X', 'TKN/BTC'))
assert exchange.get_order('X', 'TKN/BTC').myid == 123
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default_conf['dry_run'] = False
mocker.patch.dict('freqtrade.exchange._CONF', default_conf)
api_mock = MagicMock()
api_mock.fetch_order = MagicMock(return_value=456)
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mocker.patch('freqtrade.exchange._API', api_mock)
assert exchange.get_order('X', 'TKN/BTC') == 456
with pytest.raises(TemporaryError):
api_mock.fetch_order = MagicMock(side_effect=ccxt.NetworkError)
mocker.patch('freqtrade.exchange._API', api_mock)
exchange.get_order(order_id='_', pair='TKN/BTC')
assert api_mock.fetch_order.call_count == exchange.API_RETRY_COUNT + 1
with pytest.raises(DependencyException):
api_mock.fetch_order = MagicMock(side_effect=ccxt.InvalidOrder)
mocker.patch('freqtrade.exchange._API', api_mock)
exchange.get_order(order_id='_', pair='TKN/BTC')
assert api_mock.fetch_order.call_count == exchange.API_RETRY_COUNT + 1
with pytest.raises(OperationalException):
api_mock.fetch_order = MagicMock(side_effect=ccxt.BaseError)
mocker.patch('freqtrade.exchange._API', api_mock)
exchange.get_order(order_id='_', pair='TKN/BTC')
assert api_mock.fetch_order.call_count == 1
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def test_get_name(default_conf, mocker):
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mocker.patch('freqtrade.exchange.validate_pairs',
side_effect=lambda s: True)
default_conf['exchange']['name'] = 'binance'
init(default_conf)
assert get_name() == 'Binance'
def test_get_id(default_conf, mocker):
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mocker.patch('freqtrade.exchange.validate_pairs',
side_effect=lambda s: True)
default_conf['exchange']['name'] = 'binance'
init(default_conf)
assert get_id() == 'binance'
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def test_get_pair_detail_url(default_conf, mocker):
mocker.patch('freqtrade.exchange.validate_pairs',
side_effect=lambda s: True)
default_conf['exchange']['name'] = 'binance'
init(default_conf)
url = get_pair_detail_url('TKN/ETH')
assert 'TKN' in url
assert 'ETH' in url
url = get_pair_detail_url('LOOONG/BTC')
assert 'LOOONG' in url
assert 'BTC' in url
default_conf['exchange']['name'] = 'bittrex'
init(default_conf)
url = get_pair_detail_url('TKN/ETH')
assert 'TKN' in url
assert 'ETH' in url
url = get_pair_detail_url('LOOONG/BTC')
assert 'LOOONG' in url
assert 'BTC' in url
def test_get_fee(default_conf, mocker):
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api_mock = MagicMock()
api_mock.calculate_fee = MagicMock(return_value={
'type': 'taker',
'currency': 'BTC',
'rate': 0.025,
'cost': 0.05
})
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mocker.patch('freqtrade.exchange._API', api_mock)
assert get_fee() == 0.025
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def test_get_amount_lots(default_conf, mocker):
api_mock = MagicMock()
api_mock.amount_to_lots = MagicMock(return_value=1.0)
mocker.patch('freqtrade.exchange._API', api_mock)
assert get_amount_lots('LTC/BTC', 1.54) == 1