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Add bid_last_balance parameter

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to interpolate sell prices

closes #3270
This commit is contained in:
Matthias
2021-03-20 14:38:26 +01:00
parent f4e71c1f14
commit 43d7f9ac67
5 changed files with 45 additions and 17 deletions
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39
tests/test_freqtradebot.py
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@@ -4112,22 +4112,33 @@ def test_order_book_ask_strategy(default_conf, limit_buy_order_open, limit_buy_o
assert log_has('Sell Price at location 1 from orderbook could not be determined.', caplog)
@pytest.mark.parametrize('side,ask,bid,expected', [
('bid', 10.0, 11.0, 11.0),
('bid', 10.0, 11.2, 11.2),
('bid', 10.0, 11.0, 11.0),
('bid', 9.8, 11.0, 11.0),
('bid', 0.0001, 0.002, 0.002),
('ask', 10.0, 11.0, 10.0),
('ask', 10.11, 11.2, 10.11),
('ask', 0.001, 0.002, 0.001),
('ask', 0.006, 1.0, 0.006),
@pytest.mark.parametrize('side,ask,bid,last,last_ab,expected', [
('bid', 12.0, 11.0, 11.5, 0.0, 11.0), # full bid side
('bid', 12.0, 11.0, 11.5, 1.0, 11.5), # full last side
('bid', 12.0, 11.0, 11.5, 0.5, 11.25), # between bid and lat
('bid', 12.0, 11.2, 10.5, 0.0, 11.2), # Last smaller than bid
('bid', 12.0, 11.2, 10.5, 1.0, 11.2), # Last smaller than bid - uses bid
('bid', 12.0, 11.2, 10.5, 0.5, 11.2), # Last smaller than bid - uses bid
('bid', 0.003, 0.002, 0.005, 0.0, 0.002),
('ask', 12.0, 11.0, 12.5, 0.0, 12.0), # full ask side
('ask', 12.0, 11.0, 12.5, 1.0, 12.5), # full last side
('ask', 12.0, 11.0, 12.5, 0.5, 12.25), # between bid and lat
('ask', 12.2, 11.2, 10.5, 0.0, 12.2), # Last smaller than ask
('ask', 12.0, 11.0, 10.5, 1.0, 12.0), # Last smaller than ask - uses ask
('ask', 12.0, 11.2, 10.5, 0.5, 12.0), # Last smaller than ask - uses ask
('ask', 10.0, 11.0, 11.0, 0.0, 10.0),
('ask', 10.11, 11.2, 11.0, 0.0, 10.11),
('ask', 0.001, 0.002, 11.0, 0.0, 0.001),
('ask', 0.006, 1.0, 11.0, 0.0, 0.006),
])
def test_get_sell_rate(default_conf, mocker, caplog, side, bid, ask, expected) -> None:
def test_get_sell_rate(default_conf, mocker, caplog, side, bid, ask,
last, last_ab, expected) -> None:
caplog.set_level(logging.DEBUG)
default_conf['ask_strategy']['price_side'] = side
mocker.patch('freqtrade.exchange.Exchange.fetch_ticker', return_value={'ask': ask, 'bid': bid})
default_conf['ask_strategy']['bid_last_balance'] = last_ab
mocker.patch('freqtrade.exchange.Exchange.fetch_ticker',
return_value={'ask': ask, 'bid': bid, 'last': last})
pair = "ETH/BTC"
# Test regular mode
@@ -4186,7 +4197,7 @@ def test_get_sell_rate_exception(default_conf, mocker, caplog):
default_conf['ask_strategy']['price_side'] = 'ask'
pair = "ETH/BTC"
mocker.patch('freqtrade.exchange.Exchange.fetch_ticker',
return_value={'ask': None, 'bid': 0.12})
return_value={'ask': None, 'bid': 0.12, 'last': None})
ft = get_patched_freqtradebot(mocker, default_conf)
with pytest.raises(PricingError, match=r"Sell-Rate for ETH/BTC was empty."):
ft.get_sell_rate(pair, True)
@@ -4195,7 +4206,7 @@ def test_get_sell_rate_exception(default_conf, mocker, caplog):
assert ft.get_sell_rate(pair, True) == 0.12
# Reverse sides
mocker.patch('freqtrade.exchange.Exchange.fetch_ticker',
return_value={'ask': 0.13, 'bid': None})
return_value={'ask': 0.13, 'bid': None, 'last': None})
with pytest.raises(PricingError, match=r"Sell-Rate for ETH/BTC was empty."):
ft.get_sell_rate(pair, True)