stable/tests/pairlist/test_pairlist.py

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# pragma pylint: disable=missing-docstring,C0103,protected-access
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from unittest.mock import MagicMock, PropertyMock
from freqtrade import OperationalException
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from freqtrade.constants import AVAILABLE_PAIRLISTS
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from freqtrade.resolvers import PairListResolver
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from tests.conftest import get_patched_freqtradebot
import pytest
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# whitelist, blacklist
@pytest.fixture(scope="function")
def whitelist_conf(default_conf):
default_conf['stake_currency'] = 'BTC'
default_conf['exchange']['pair_whitelist'] = [
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'ETH/BTC',
'TKN/BTC',
'TRST/BTC',
'SWT/BTC',
'BCC/BTC'
]
default_conf['exchange']['pair_blacklist'] = [
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'BLK/BTC'
]
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default_conf['pairlist'] = {'method': 'StaticPairList',
'config': {'number_assets': 3}
}
return default_conf
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def test_load_pairlist_noexist(mocker, markets, default_conf):
freqtradebot = get_patched_freqtradebot(mocker, default_conf)
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mocker.patch('freqtrade.exchange.Exchange.markets', PropertyMock(return_value=markets))
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with pytest.raises(OperationalException,
match=r"Impossible to load Pairlist 'NonexistingPairList'. "
r"This class does not exist or contains Python code errors."):
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PairListResolver('NonexistingPairList', freqtradebot, default_conf).pairlist
def test_refresh_market_pair_not_in_whitelist(mocker, markets, whitelist_conf):
freqtradebot = get_patched_freqtradebot(mocker, whitelist_conf)
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mocker.patch('freqtrade.exchange.Exchange.markets', PropertyMock(return_value=markets))
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freqtradebot.pairlists.refresh_pairlist()
# List ordered by BaseVolume
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whitelist = ['ETH/BTC', 'TKN/BTC']
# Ensure all except those in whitelist are removed
assert set(whitelist) == set(freqtradebot.pairlists.whitelist)
# Ensure config dict hasn't been changed
assert (whitelist_conf['exchange']['pair_whitelist'] ==
freqtradebot.config['exchange']['pair_whitelist'])
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def test_refresh_pairlists(mocker, markets, whitelist_conf):
freqtradebot = get_patched_freqtradebot(mocker, whitelist_conf)
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mocker.patch('freqtrade.exchange.Exchange.markets', PropertyMock(return_value=markets))
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freqtradebot.pairlists.refresh_pairlist()
# List ordered by BaseVolume
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whitelist = ['ETH/BTC', 'TKN/BTC']
# Ensure all except those in whitelist are removed
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assert set(whitelist) == set(freqtradebot.pairlists.whitelist)
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assert whitelist_conf['exchange']['pair_blacklist'] == freqtradebot.pairlists.blacklist
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def test_refresh_pairlist_dynamic(mocker, markets, tickers, whitelist_conf):
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whitelist_conf['pairlist'] = {'method': 'VolumePairList',
'config': {'number_assets': 5}
}
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mocker.patch.multiple(
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'freqtrade.exchange.Exchange',
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markets=PropertyMock(return_value=markets),
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get_tickers=tickers,
exchange_has=MagicMock(return_value=True)
)
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freqtradebot = get_patched_freqtradebot(mocker, whitelist_conf)
# argument: use the whitelist dynamically by exchange-volume
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whitelist = ['ETH/BTC', 'TKN/BTC', 'LTC/BTC']
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freqtradebot.pairlists.refresh_pairlist()
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assert whitelist == freqtradebot.pairlists.whitelist
whitelist_conf['pairlist'] = {'method': 'VolumePairList',
'config': {}
}
with pytest.raises(OperationalException,
match=r'`number_assets` not specified. Please check your configuration '
r'for "pairlist.config.number_assets"'):
PairListResolver('VolumePairList', freqtradebot, whitelist_conf).pairlist
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def test_VolumePairList_refresh_empty(mocker, markets_empty, whitelist_conf):
freqtradebot = get_patched_freqtradebot(mocker, whitelist_conf)
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mocker.patch('freqtrade.exchange.Exchange.markets', PropertyMock(return_value=markets_empty))
# argument: use the whitelist dynamically by exchange-volume
whitelist = []
whitelist_conf['exchange']['pair_whitelist'] = []
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freqtradebot.pairlists.refresh_pairlist()
pairslist = whitelist_conf['exchange']['pair_whitelist']
assert set(whitelist) == set(pairslist)
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@pytest.mark.parametrize("precision_filter,base_currency,key,whitelist_result", [
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(False, "BTC", "quoteVolume", ['ETH/BTC', 'TKN/BTC', 'LTC/BTC']),
(False, "BTC", "bidVolume", ['LTC/BTC', 'TKN/BTC', 'ETH/BTC']),
(False, "USDT", "quoteVolume", ['ETH/USDT']),
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(False, "ETH", "quoteVolume", []), # this replaces tests that were removed from test_exchange
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(True, "BTC", "quoteVolume", ["LTC/BTC", "ETH/BTC", "TKN/BTC"]),
(True, "BTC", "bidVolume", ["LTC/BTC", "TKN/BTC", "ETH/BTC"])
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])
def test_VolumePairList_whitelist_gen(mocker, whitelist_conf, markets, tickers, base_currency, key,
whitelist_result, precision_filter) -> None:
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whitelist_conf['pairlist']['method'] = 'VolumePairList'
mocker.patch('freqtrade.exchange.Exchange.exchange_has', MagicMock(return_value=True))
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freqtrade = get_patched_freqtradebot(mocker, whitelist_conf)
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mocker.patch('freqtrade.exchange.Exchange.markets', PropertyMock(return_value=markets))
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mocker.patch('freqtrade.exchange.Exchange.get_tickers', tickers)
mocker.patch('freqtrade.exchange.Exchange.symbol_price_prec', lambda s, p, r: round(r, 8))
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freqtrade.pairlists._precision_filter = precision_filter
freqtrade.config['stake_currency'] = base_currency
whitelist = freqtrade.pairlists._gen_pair_whitelist(base_currency=base_currency, key=key)
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assert sorted(whitelist) == sorted(whitelist_result)
def test_gen_pair_whitelist_not_supported(mocker, default_conf, tickers) -> None:
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default_conf['pairlist'] = {'method': 'VolumePairList',
'config': {'number_assets': 10}
}
mocker.patch('freqtrade.exchange.Exchange.get_tickers', tickers)
mocker.patch('freqtrade.exchange.Exchange.exchange_has', MagicMock(return_value=False))
with pytest.raises(OperationalException):
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get_patched_freqtradebot(mocker, default_conf)
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@pytest.mark.parametrize("pairlist", AVAILABLE_PAIRLISTS)
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def test_pairlist_class(mocker, whitelist_conf, markets, pairlist):
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whitelist_conf['pairlist']['method'] = pairlist
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mocker.patch('freqtrade.exchange.Exchange.markets', PropertyMock(return_value=markets))
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mocker.patch('freqtrade.exchange.Exchange.exchange_has', MagicMock(return_value=True))
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freqtrade = get_patched_freqtradebot(mocker, whitelist_conf)
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assert freqtrade.pairlists.name == pairlist
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assert pairlist in freqtrade.pairlists.short_desc()
assert isinstance(freqtrade.pairlists.whitelist, list)
assert isinstance(freqtrade.pairlists.blacklist, list)
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@pytest.mark.parametrize("pairlist", AVAILABLE_PAIRLISTS)
@pytest.mark.parametrize("whitelist,log_message", [
(['ETH/BTC', 'TKN/BTC'], ""),
(['ETH/BTC', 'TKN/BTC', 'TRX/ETH'], "is not compatible with exchange"), # TRX/ETH wrong stake
(['ETH/BTC', 'TKN/BTC', 'BCH/BTC'], "is not compatible with exchange"), # BCH/BTC not available
(['ETH/BTC', 'TKN/BTC', 'BLK/BTC'], "is not compatible with exchange"), # BLK/BTC in blacklist
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(['ETH/BTC', 'TKN/BTC', 'BTT/BTC'], "Market is not active") # BTT/BTC is inactive
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])
def test_validate_whitelist(mocker, whitelist_conf, markets, pairlist, whitelist, caplog,
log_message):
whitelist_conf['pairlist']['method'] = pairlist
mocker.patch('freqtrade.exchange.Exchange.markets', PropertyMock(return_value=markets))
mocker.patch('freqtrade.exchange.Exchange.exchange_has', MagicMock(return_value=True))
freqtrade = get_patched_freqtradebot(mocker, whitelist_conf)
caplog.clear()
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new_whitelist = freqtrade.pairlists._validate_whitelist(whitelist)
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assert set(new_whitelist) == set(['ETH/BTC', 'TKN/BTC'])
assert log_message in caplog.text