Autofill test credit card, https://salsasupport.zendesk.com/entries/47317260

auto_fill_test_credit_card.html

<!-- See https://salsasupport.zendesk.com/entries/47317260-->
<fieldset id="form_of_payment_fields">
    <legend>Form of Payment?</legend>
    <div class="formRow">
        <input type="radio"name="Form_Of_Payment" value="Cash" checked/>
        <label for="cash">Cash</label>
    </div>
    <div class="formRow">
        <input type="radio" selected="selected" name="Form_Of_Payment" value="Check"/>
        <label for="cash">Check</label>
    </div>
</fieldset>

<script type="text/javascript">
$(document).ready(function() {
    $('#one_time').click();
    $('#cc_number').val('1111111111111111');
    $('#ccExpMonth').val('12');
    $('#ccExpYear').val('20');
    $('#CVV2').val('1111');
    $('#credit_card_information').hide();
})
</script>