from freqtrade.util import decimals_per_coin, fmt_coin, round_value


def test_decimals_per_coin():
    assert decimals_per_coin('USDT') == 3
    assert decimals_per_coin('EUR') == 3
    assert decimals_per_coin('BTC') == 8
    assert decimals_per_coin('ETH') == 5


def test_fmt_coin():
    assert fmt_coin(222.222222, 'USDT') == '222.222 USDT'
    assert fmt_coin(222.2, 'USDT', keep_trailing_zeros=True) == '222.200 USDT'
    assert fmt_coin(222.2, 'USDT') == '222.2 USDT'
    assert fmt_coin(222.12745, 'EUR') == '222.127 EUR'
    assert fmt_coin(0.1274512123, 'BTC') == '0.12745121 BTC'
    assert fmt_coin(0.1274512123, 'ETH') == '0.12745 ETH'

    assert fmt_coin(222.222222, 'USDT', False) == '222.222'
    assert fmt_coin(222.2, 'USDT', False) == '222.2'
    assert fmt_coin(222.00, 'USDT', False) == '222'
    assert fmt_coin(222.12745, 'EUR', False) == '222.127'
    assert fmt_coin(0.1274512123, 'BTC', False) == '0.12745121'
    assert fmt_coin(0.1274512123, 'ETH', False) == '0.12745'
    assert fmt_coin(222.2, 'USDT', False, True) == '222.200'


def test_round_value():

    assert round_value(222.222222, 3) == '222.222'
    assert round_value(222.2, 3) == '222.2'
    assert round_value(222.00, 3) == '222'
    assert round_value(222.12745, 3) == '222.127'
    assert round_value(0.1274512123, 8) == '0.12745121'
    assert round_value(0.1274512123, 5) == '0.12745'
    assert round_value(222.2, 3, True) == '222.200'
    assert round_value(222.2, 0, True) == '222'