a eway testing page has been set up with the eway  there is two set of login

1, the eway developer website

https://www.eway.com.au/eway-partner-portal/login

login: kafu@creativecomputing.com.au

password: $C0ntr6l

can find the merchant id of sandbox user in the Resource tab -> sandbox/testing

2, the eway sandbox website

https://sandbox.myeway.com.au/gbc/login.aspx

login: kafu@creativecoputing.com.au.sand

passowrd: $C0ntr6l

can use it to will transaction that come in.