def _add_test_cases(self, mocked_result, tickers):
    mocked_result.loc[(str_to_date('2015-02-05 19:59:00.00', DateFormat.FULL_ISO), tickers[0], PriceField.Low)] -= 15.0
    mocked_result.loc[(str_to_date('2015-02-12 19:59:00.00', DateFormat.FULL_ISO), tickers[0], PriceField.Low)] -= 15.0
    mocked_result.loc[(str_to_date('2015-02-13 19:59:00.00', DateFormat.FULL_ISO), tickers[0], PriceField.Low)] -= 15.0
    mocked_result.loc[(str_to_date('2015-02-23 19:59:00.00', DateFormat.FULL_ISO), tickers[0], PriceField.Low)] -= 25.0
    mocked_result.loc[(str_to_date('2015-02-23 19:59:00.00', DateFormat.FULL_ISO), tickers[0], PriceField.Open)] = mocked_result.loc[(str_to_date('2015-02-23 19:59:00.00', DateFormat.FULL_ISO), tickers[0], PriceField.Low)]
def _add_test_cases(self, mocked_result, tickers):
    mocked_result.loc[(str_to_date('2015-02-05 19:59:00.00', DateFormat.FULL_ISO), tickers[0], PriceField.Low)] -= 15.0
    mocked_result.loc[(str_to_date('2015-02-12 19:59:00.00', DateFormat.FULL_ISO), tickers[0], PriceField.Low)] -= 15.0
    mocked_result.loc[(str_to_date('2015-02-13 19:59:00.00', DateFormat.FULL_ISO), tickers[0], PriceField.Low)] -= 15.0
    mocked_result.loc[(str_to_date('2015-02-23 19:59:00.00', DateFormat.FULL_ISO), tickers[0], PriceField.Low)] -= 25.0
    mocked_result.loc[(str_to_date('2015-02-23 19:59:00.00', DateFormat.FULL_ISO), tickers[0], PriceField.Open)] = mocked_result.loc[(str_to_date('2015-02-23 19:59:00.00', DateFormat.FULL_ISO), tickers[0], PriceField.Low)]