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Add more detailed tests for amount_to_precision

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This commit is contained in:
Matthias 2020-01-14 15:54:53 +01:00
parent 5fcab1eee8
commit 797dc8a4da
1 changed files with 36 additions and 9 deletions
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45
tests/exchange/test_exchange.py
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@ -173,12 +173,19 @@ def test_validate_order_time_in_force(default_conf, mocker, caplog):
ex.validate_order_time_in_force(tif2) ex.validate_order_time_in_force(tif2)
def test_amount_to_precision(default_conf, mocker): @pytest.mark.parametrize("amount,precision,expected", [
(2.34559, 4, 2.3455),
(2.34559, 5, 2.34559),
(2.34559, 3, 2.345),
(2.9999, 3, 2.999),
(2.9909, 3, 2.990),
])
def test_amount_to_precision_decimal_places(default_conf, mocker, amount, 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") exchange = get_patched_exchange(mocker, default_conf, id="binance")
# digits counting mode # digits counting mode
@ -188,16 +195,36 @@ def test_amount_to_precision(default_conf, mocker):
mocker.patch('freqtrade.exchange.Exchange.precisionMode', PropertyMock(return_value=2)) mocker.patch('freqtrade.exchange.Exchange.precisionMode', PropertyMock(return_value=2))
mocker.patch('freqtrade.exchange.Exchange.markets', markets) mocker.patch('freqtrade.exchange.Exchange.markets', markets)
amount = 2.34559
pair = 'ETH/BTC' pair = 'ETH/BTC'
amount = exchange.amount_to_precision(pair, amount) assert exchange.amount_to_precision(pair, amount) == expected
assert amount == 2.3455
markets = PropertyMock(return_value={'ETH/BTC': {'precision': {'amount': 0.0001}}})
@pytest.mark.parametrize("amount,precision,expected", [
(2.34559, 0.0001, 2.3455),
(2.34559, 0.00001, 2.34559),
(2.34559, 0.001, 2.345),
(2.9999, 0.001, 2.999),
(2.9909, 0.001, 2.990),
(2.9909, 0.005, 2.990),
(2.9999, 0.005, 2.995),
])
def test_amount_to_precision_tick_size(default_conf, mocker, amount, precision, expected):
'''
Test rounds down
'''
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=4)) mocker.patch('freqtrade.exchange.Exchange.precisionMode', PropertyMock(return_value=4))
mocker.patch('freqtrade.exchange.Exchange.markets', markets) mocker.patch('freqtrade.exchange.Exchange.markets', markets)
amount = exchange.amount_to_precision(pair, amount)
assert amount == 2.3455 pair = 'ETH/BTC'
assert exchange.amount_to_precision(pair, amount) == expected
def test_sprice_to_precision(default_conf, mocker): def test_sprice_to_precision(default_conf, mocker):