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Merge pull request #2763 from freqtrade/fix/precision_rounding

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Fix/precision rounding
This commit is contained in:
hroff-1902
2020-01-17 01:25:30 +03:00
committed by GitHub
parent 889929f782 4c823f12e3
commit 2f82122fc4
9 changed files with 135 additions and 68 deletions
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1
tests/conftest.py
View File

@@ -63,6 +63,7 @@ def patch_exchange(mocker, api_mock=None, id='bittrex', mock_markets=True) -> No
mocker.patch('freqtrade.exchange.Exchange.validate_stakecurrency', MagicMock())
mocker.patch('freqtrade.exchange.Exchange.id', PropertyMock(return_value=id))
mocker.patch('freqtrade.exchange.Exchange.name', PropertyMock(return_value=id.title()))
mocker.patch('freqtrade.exchange.Exchange.precisionMode', PropertyMock(return_value=2))
if mock_markets:
mocker.patch('freqtrade.exchange.Exchange.markets',
PropertyMock(return_value=get_markets()))

8
tests/exchange/test_binance.py
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@@ -22,8 +22,8 @@ def test_stoploss_limit_order(default_conf, mocker):
})
default_conf['dry_run'] = False
mocker.patch('freqtrade.exchange.Exchange.symbol_amount_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.symbol_price_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.amount_to_precision', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.price_to_precision', lambda s, x, y: y)
exchange = get_patched_exchange(mocker, default_conf, api_mock, 'binance')
@@ -71,8 +71,8 @@ def test_stoploss_limit_order_dry_run(default_conf, mocker):
api_mock = MagicMock()
order_type = 'stop_loss_limit'
default_conf['dry_run'] = True
mocker.patch('freqtrade.exchange.Exchange.symbol_amount_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.symbol_price_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.amount_to_precision', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.price_to_precision', lambda s, x, y: y)
exchange = get_patched_exchange(mocker, default_conf, api_mock, 'binance')

105
tests/exchange/test_exchange.py
View File

@@ -175,35 +175,78 @@ def test_validate_order_time_in_force(default_conf, mocker, caplog):
ex.validate_order_time_in_force(tif2)
def test_symbol_amount_prec(default_conf, mocker):
@pytest.mark.parametrize("amount,precision_mode,precision,expected", [
(2.34559, 2, 4, 2.3455),
(2.34559, 2, 5, 2.34559),
(2.34559, 2, 3, 2.345),
(2.9999, 2, 3, 2.999),
(2.9909, 2, 3, 2.990),
# Tests for Tick-size
(2.34559, 4, 0.0001, 2.3455),
(2.34559, 4, 0.00001, 2.34559),
(2.34559, 4, 0.001, 2.345),
(2.9999, 4, 0.001, 2.999),
(2.9909, 4, 0.001, 2.990),
(2.9909, 4, 0.005, 2.990),
(2.9999, 4, 0.005, 2.995),
])
def test_amount_to_precision(default_conf, mocker, amount, precision_mode, precision, expected):
'''
Test rounds down to 4 Decimal places
Test rounds down
'''
markets = PropertyMock(return_value={'ETH/BTC': {'precision': {'amount': 4}}})
markets = PropertyMock(return_value={'ETH/BTC': {'precision': {'amount': precision}}})
exchange = get_patched_exchange(mocker, default_conf, id="binance")
# digits counting mode
# DECIMAL_PLACES = 2
# SIGNIFICANT_DIGITS = 3
# TICK_SIZE = 4
mocker.patch('freqtrade.exchange.Exchange.precisionMode',
PropertyMock(return_value=precision_mode))
mocker.patch('freqtrade.exchange.Exchange.markets', markets)
pair = 'ETH/BTC'
assert exchange.amount_to_precision(pair, amount) == expected
@pytest.mark.parametrize("price,precision_mode,precision,expected", [
(2.34559, 2, 4, 2.3456),
(2.34559, 2, 5, 2.34559),
(2.34559, 2, 3, 2.346),
(2.9999, 2, 3, 3.000),
(2.9909, 2, 3, 2.991),
# Tests for Tick_size
(2.34559, 4, 0.0001, 2.3456),
(2.34559, 4, 0.00001, 2.34559),
(2.34559, 4, 0.001, 2.346),
(2.9999, 4, 0.001, 3.000),
(2.9909, 4, 0.001, 2.991),
(2.9909, 4, 0.005, 2.995),
(2.9973, 4, 0.005, 3.0),
(2.9977, 4, 0.005, 3.0),
(234.43, 4, 0.5, 234.5),
(234.53, 4, 0.5, 235.0),
(0.891534, 4, 0.0001, 0.8916),
])
def test_price_to_precision(default_conf, mocker, price, precision_mode, precision, expected):
'''
Test price to precision
'''
markets = PropertyMock(return_value={'ETH/BTC': {'precision': {'price': precision}}})
exchange = get_patched_exchange(mocker, default_conf, id="binance")
mocker.patch('freqtrade.exchange.Exchange.markets', markets)
# digits counting mode
# DECIMAL_PLACES = 2
# SIGNIFICANT_DIGITS = 3
# TICK_SIZE = 4
mocker.patch('freqtrade.exchange.Exchange.precisionMode',
PropertyMock(return_value=precision_mode))
amount = 2.34559
pair = 'ETH/BTC'
amount = exchange.symbol_amount_prec(pair, amount)
assert amount == 2.3455
def test_symbol_price_prec(default_conf, mocker):
'''
Test rounds up to 4 decimal places
'''
markets = PropertyMock(return_value={'ETH/BTC': {'precision': {'price': 4}}})
exchange = get_patched_exchange(mocker, default_conf, id="binance")
mocker.patch('freqtrade.exchange.Exchange.markets', markets)
price = 2.34559
pair = 'ETH/BTC'
price = exchange.symbol_price_prec(pair, price)
assert price == 2.3456
assert pytest.approx(exchange.price_to_precision(pair, price)) == expected
def test_set_sandbox(default_conf, mocker):
@@ -657,8 +700,8 @@ def test_create_order(default_conf, mocker, side, ordertype, rate, marketprice,
}
})
default_conf['dry_run'] = False
mocker.patch('freqtrade.exchange.Exchange.symbol_amount_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.symbol_price_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.amount_to_precision', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.price_to_precision', lambda s, x, y: y)
exchange = get_patched_exchange(mocker, default_conf, api_mock, id=exchange_name)
order = exchange.create_order(
@@ -698,8 +741,8 @@ def test_buy_prod(default_conf, mocker, exchange_name):
}
})
default_conf['dry_run'] = False
mocker.patch('freqtrade.exchange.Exchange.symbol_amount_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.symbol_price_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.amount_to_precision', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.price_to_precision', lambda s, x, y: y)
exchange = get_patched_exchange(mocker, default_conf, api_mock, id=exchange_name)
order = exchange.buy(pair='ETH/BTC', ordertype=order_type,
@@ -772,8 +815,8 @@ def test_buy_considers_time_in_force(default_conf, mocker, exchange_name):
}
})
default_conf['dry_run'] = False
mocker.patch('freqtrade.exchange.Exchange.symbol_amount_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.symbol_price_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.amount_to_precision', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.price_to_precision', lambda s, x, y: y)
exchange = get_patched_exchange(mocker, default_conf, api_mock, id=exchange_name)
order_type = 'limit'
@@ -834,8 +877,8 @@ def test_sell_prod(default_conf, mocker, exchange_name):
})
default_conf['dry_run'] = False
mocker.patch('freqtrade.exchange.Exchange.symbol_amount_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.symbol_price_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.amount_to_precision', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.price_to_precision', lambda s, x, y: y)
exchange = get_patched_exchange(mocker, default_conf, api_mock, id=exchange_name)
order = exchange.sell(pair='ETH/BTC', ordertype=order_type, amount=1, rate=200)
@@ -898,8 +941,8 @@ def test_sell_considers_time_in_force(default_conf, mocker, exchange_name):
})
api_mock.options = {}
default_conf['dry_run'] = False
mocker.patch('freqtrade.exchange.Exchange.symbol_amount_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.symbol_price_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.amount_to_precision', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.price_to_precision', lambda s, x, y: y)
exchange = get_patched_exchange(mocker, default_conf, api_mock, id=exchange_name)
order_type = 'limit'

8
tests/exchange/test_kraken.py
View File

@@ -21,8 +21,8 @@ def test_buy_kraken_trading_agreement(default_conf, mocker):
})
default_conf['dry_run'] = False
mocker.patch('freqtrade.exchange.Exchange.symbol_amount_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.symbol_price_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.amount_to_precision', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.price_to_precision', lambda s, x, y: y)
exchange = get_patched_exchange(mocker, default_conf, api_mock, id="kraken")
order = exchange.buy(pair='ETH/BTC', ordertype=order_type,
@@ -53,8 +53,8 @@ def test_sell_kraken_trading_agreement(default_conf, mocker):
})
default_conf['dry_run'] = False
mocker.patch('freqtrade.exchange.Exchange.symbol_amount_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.symbol_price_prec', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.amount_to_precision', lambda s, x, y: y)
mocker.patch('freqtrade.exchange.Exchange.price_to_precision', lambda s, x, y: y)
exchange = get_patched_exchange(mocker, default_conf, api_mock, id="kraken")
order = exchange.sell(pair='ETH/BTC', ordertype=order_type, amount=1, rate=200)

8
tests/test_freqtradebot.py
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@@ -2435,8 +2435,8 @@ def test_execute_sell_with_stoploss_on_exchange(default_conf, ticker, fee, ticke
'freqtrade.exchange.Exchange',
fetch_ticker=ticker,
get_fee=fee,
symbol_amount_prec=lambda s, x, y: y,
symbol_price_prec=lambda s, x, y: y,
amount_to_precision=lambda s, x, y: y,
price_to_precision=lambda s, x, y: y,
stoploss_limit=stoploss_limit,
cancel_order=cancel_order,
)
@@ -2478,8 +2478,8 @@ def test_may_execute_sell_after_stoploss_on_exchange_hit(default_conf, ticker, f
'freqtrade.exchange.Exchange',
fetch_ticker=ticker,
get_fee=fee,
symbol_amount_prec=lambda s, x, y: y,
symbol_price_prec=lambda s, x, y: y,
amount_to_precision=lambda s, x, y: y,
price_to_precision=lambda s, x, y: y,
)
stoploss_limit = MagicMock(return_value={

8
tests/test_integration.py
View File

@@ -58,8 +58,8 @@ def test_may_execute_sell_stoploss_on_exchange_multi(default_conf, ticker, fee,
'freqtrade.exchange.Exchange',
fetch_ticker=ticker,
get_fee=fee,
symbol_amount_prec=lambda s, x, y: y,
symbol_price_prec=lambda s, x, y: y,
amount_to_precision=lambda s, x, y: y,
price_to_precision=lambda s, x, y: y,
get_order=stoploss_order_mock,
cancel_order=cancel_order_mock,
)
@@ -137,8 +137,8 @@ def test_forcebuy_last_unlimited(default_conf, ticker, fee, limit_buy_order, moc
'freqtrade.exchange.Exchange',
fetch_ticker=ticker,
get_fee=fee,
symbol_amount_prec=lambda s, x, y: y,
symbol_price_prec=lambda s, x, y: y,
amount_to_precision=lambda s, x, y: y,
price_to_precision=lambda s, x, y: y,
)
mocker.patch.multiple(