def test_with_named_params():
gbp_usd = check_currency_pair(base_currency="gbp",
quote_currency="usd",
ignored="should not be used")
assert gbp_usd == CurrencyPair(base_currency="GBP", quote_currency="USD")
usd_yen = check_currency_pair(product_id="usd/jpy")
assert usd_yen == CurrencyPair(base_currency="USD", quote_currency="JPY")
def test_six_chars_pair():
xbt_usd = check_currency_pair("XBTUSD")
assert xbt_usd == CurrencyPair(base_currency="XBT", quote_currency="USD")
def test_with_no_params():
with pytest.raises(ValueError):
check_currency_pair()
def test_with_positioning_params():
eth_usdt = check_currency_pair("eth", "usdt", "ignored", 12, None)
assert eth_usdt == CurrencyPair(base_currency="ETH", quote_currency="USDT")
def test_pair_instance():
eur_yen = check_currency_pair(CurrencyPair("EUR", "JPY"))
assert eur_yen == CurrencyPair(base_currency="EUR", quote_currency="JPY")
def test_more_than_six_chars_pair():
btc_usdt = check_currency_pair("BTC/USDT")
assert btc_usdt == CurrencyPair(base_currency="BTC", quote_currency="USDT")
def test_pair_with_dash():
etc_usd = check_currency_pair("ETH-USD")
assert etc_usd == CurrencyPair(base_currency="ETH", quote_currency="USD")
def test_pair_with_slash():
btc_usd = check_currency_pair("BTC/USD")
assert btc_usd == CurrencyPair(base_currency="BTC", quote_currency="USD")