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Merge pull request #8386 from freqtrade/feature/price_to_precision_round

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price to precision rounding
This commit is contained in:
Matthias
2023-03-31 07:20:10 +02:00
committed by GitHub
parent 6dfb1a1d14 159090c0e7
commit 5e13b48648
13 changed files with 145 additions and 88 deletions
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tests/exchange/test_exchange.py
+56 -29
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@@ -8,6 +8,7 @@ from unittest.mock import MagicMock, Mock, PropertyMock, patch
import arrow
import ccxt
import pytest
from ccxt import DECIMAL_PLACES, ROUND, ROUND_UP, TICK_SIZE, TRUNCATE
from pandas import DataFrame
from freqtrade.enums import CandleType, MarginMode, TradingMode
@@ -315,35 +316,54 @@ def test_amount_to_precision(amount, precision_mode, precision, expected,):
assert amount_to_precision(amount, precision, precision_mode) == 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),
(64968.89, 4, 0.01, 64968.89),
(0.000000003483, 4, 1e-12, 0.000000003483),
@pytest.mark.parametrize("price,precision_mode,precision,expected,rounding_mode", [
# Tests for DECIMAL_PLACES, ROUND_UP
(2.34559, 2, 4, 2.3456, ROUND_UP),
(2.34559, 2, 5, 2.34559, ROUND_UP),
(2.34559, 2, 3, 2.346, ROUND_UP),
(2.9999, 2, 3, 3.000, ROUND_UP),
(2.9909, 2, 3, 2.991, ROUND_UP),
# Tests for DECIMAL_PLACES, ROUND
(2.345600000000001, DECIMAL_PLACES, 4, 2.3456, ROUND),
(2.345551, DECIMAL_PLACES, 4, 2.3456, ROUND),
(2.49, DECIMAL_PLACES, 0, 2., ROUND),
(2.51, DECIMAL_PLACES, 0, 3., ROUND),
(5.1, DECIMAL_PLACES, -1, 10., ROUND),
(4.9, DECIMAL_PLACES, -1, 0., ROUND),
# Tests for TICK_SIZE, ROUND_UP
(2.34559, TICK_SIZE, 0.0001, 2.3456, ROUND_UP),
(2.34559, TICK_SIZE, 0.00001, 2.34559, ROUND_UP),
(2.34559, TICK_SIZE, 0.001, 2.346, ROUND_UP),
(2.9999, TICK_SIZE, 0.001, 3.000, ROUND_UP),
(2.9909, TICK_SIZE, 0.001, 2.991, ROUND_UP),
(2.9909, TICK_SIZE, 0.005, 2.995, ROUND_UP),
(2.9973, TICK_SIZE, 0.005, 3.0, ROUND_UP),
(2.9977, TICK_SIZE, 0.005, 3.0, ROUND_UP),
(234.43, TICK_SIZE, 0.5, 234.5, ROUND_UP),
(234.53, TICK_SIZE, 0.5, 235.0, ROUND_UP),
(0.891534, TICK_SIZE, 0.0001, 0.8916, ROUND_UP),
(64968.89, TICK_SIZE, 0.01, 64968.89, ROUND_UP),
(0.000000003483, TICK_SIZE, 1e-12, 0.000000003483, ROUND_UP),
# Tests for TICK_SIZE, ROUND
(2.49, TICK_SIZE, 1., 2., ROUND),
(2.51, TICK_SIZE, 1., 3., ROUND),
(2.000000051, TICK_SIZE, 0.0000001, 2.0000001, ROUND),
(2.000000049, TICK_SIZE, 0.0000001, 2., ROUND),
(2.9909, TICK_SIZE, 0.005, 2.990, ROUND),
(2.9973, TICK_SIZE, 0.005, 2.995, ROUND),
(2.9977, TICK_SIZE, 0.005, 3.0, ROUND),
(234.24, TICK_SIZE, 0.5, 234., ROUND),
(234.26, TICK_SIZE, 0.5, 234.5, ROUND),
# Tests for TRUNCATTE
(2.34559, 2, 4, 2.3455, TRUNCATE),
(2.34559, 2, 5, 2.34559, TRUNCATE),
(2.34559, 2, 3, 2.345, TRUNCATE),
(2.9999, 2, 3, 2.999, TRUNCATE),
(2.9909, 2, 3, 2.990, TRUNCATE),
])
def test_price_to_precision(price, precision_mode, precision, expected):
# digits counting mode
# DECIMAL_PLACES = 2
# SIGNIFICANT_DIGITS = 3
# TICK_SIZE = 4
assert price_to_precision(price, precision, precision_mode) == expected
def test_price_to_precision(price, precision_mode, precision, expected, rounding_mode):
assert price_to_precision(
price, precision, precision_mode, rounding_mode=rounding_mode) == expected
@pytest.mark.parametrize("price,precision_mode,precision,expected", [
@@ -5281,7 +5301,7 @@ def test_stoploss_contract_size(mocker, default_conf, contract_size, order_amoun
})
default_conf['dry_run'] = False
mocker.patch(f'{EXMS}.amount_to_precision', lambda s, x, y: y)
mocker.patch(f'{EXMS}.price_to_precision', lambda s, x, y: y)
mocker.patch(f'{EXMS}.price_to_precision', lambda s, x, y, **kwargs: y)
exchange = get_patched_exchange(mocker, default_conf, api_mock)
exchange.get_contract_size = MagicMock(return_value=contract_size)
@@ -5301,3 +5321,10 @@ def test_stoploss_contract_size(mocker, default_conf, contract_size, order_amoun
assert order['cost'] == 100
assert order['filled'] == 100
assert order['remaining'] == 100
def test_price_to_precision_with_default_conf(default_conf, mocker):
conf = copy.deepcopy(default_conf)
patched_ex = get_patched_exchange(mocker, conf)
prec_price = patched_ex.price_to_precision("XRP/USDT", 1.0000000101)
assert prec_price == 1.00000001