To use the test gateway successfully you will need to:
- Enable Test Mode.
- Use the test card number VISA, 4444333322221111, Month, Year (set to any time in the future) CSC, 123.
- Set the transaction amount to whole dollars if you want the transaction to succeed (e.g. $10.00) or to dollars and cents if you want it to fail (e.g. $10.67)
The full list of response codes can be found on eWay's developer page.