Testing White

How to test White without going bankrupt

Wouldn't it be great if there was a way to test all you liked without having to use real-life credit cards?

Well, it turns out you can.

In the interest of keeping developers from spending money on their integrations, we're created a set of test cards that you can use.

Note: Test cards only work in `Test Mode`, i.e. when you're using a test API key.

Test Cards

Here's a list of all of the test cards that White supports, and the result that they'll simulate.

Successful transactions

Number	Card Type
4242424242424242	Visa
4000000000000101	Visa

Testing Failed transactions

As described in the [API Documentation](/docs/api/#error-types), there are 4 main types of errors:

Request Errors

Parameters	Description
'number = abc	Triggers an invalid card error
'exp_month = 13	Simulates an invalid month
'exp_year = 1979	Simulates an invalid year (just use any year in the past)
'cvc = abc	Simulates an invalid CVC code

Banking Errors

Error to simulate	Number
card_declined	4000000000000002

Authentication Errors

Simply use an invalid token when making the API request. Here's an example: `this_is_an_invalid_key`, but you can probably come up with more imaginative ones yourself.

Processing Errors

Processing errors indicate that something went wrong on White's end. In order to test a processing error, just use the card number `4000000000000127`. It should generate an `internal_server_error`.

Go forth and have fun! But remember, you must use a **Test API key** in order for all of these test scenarios to actually work.