def METHOD_NAME(self):
    # Arrange
    converter = ExchangeRateCalculator()
    bid_rates = {"AUD/USD": 0.80000}
    ask_rates = {"AUD/USD": 0.80010}
    # Act
    result = converter.get_rate(
        AUD,
        USD,
        PriceType.BID,
        bid_rates,
        ask_rates,
    )
    # Assert
    assert result == 0.80000