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Slightly refactor _get_stake_amount_limit

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This commit is contained in:
Matthias 2023-04-02 16:59:45 +02:00
parent 78a1551798
commit e6a125719e
2 changed files with 7 additions and 4 deletions
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8
freqtrade/exchange/exchange.py
View File

@ -765,12 +765,12 @@ class Exchange:
return self._get_stake_amount_limit(pair, price, stoploss, 'min', leverage)
def get_max_pair_stake_amount(self, pair: str, price: float, leverage: float = 1.0) -> float:
max_stake_amount = self._get_stake_amount_limit(pair, price, 0.0, 'max')
max_stake_amount = self._get_stake_amount_limit(pair, price, 0.0, 'max', leverage)
if max_stake_amount is None:
# * Should never be executed
raise OperationalException(f'{self.name}.get_max_pair_stake_amount should'
'never set max_stake_amount to None')
return max_stake_amount / leverage
return max_stake_amount
def _get_stake_amount_limit(
self,
@ -816,9 +816,9 @@ class Exchange:
# for cost (quote, stake currency), so max() is used here.
# See also #2575 at github.
return self._get_stake_amount_considering_leverage(
max(stake_limits) * amount_reserve_percent,
(max(stake_limits) * amount_reserve_percent) if isMin else min(stake_limits),
leverage or 1.0
) if isMin else min(stake_limits)
)
def _get_stake_amount_considering_leverage(self, stake_amount: float, leverage: float) -> float:
"""

3
tests/exchange/test_exchange.py
View File

@ -496,6 +496,9 @@ def test__get_stake_amount_limit(mocker, default_conf) -> None:
result = exchange.get_max_pair_stake_amount('ETH/BTC', 2)
assert result == 1000
result = exchange.get_max_pair_stake_amount('ETH/BTC', 2, 12.0)
assert result == 1000 / 12
markets["ETH/BTC"]["contractSize"] = '0.01'
default_conf['trading_mode'] = 'futures'
default_conf['margin_mode'] = 'isolated'