[SecurionPay] Implemented refund/3

lib/gringotts/gateways/securion_pay.ex

@@ -116,6 +116,33 @@ defmodule Gringotts.Gateways.SecurionPay do
  commit([], "charges/#{payment_id}/capture", opts)
  end
 
+ @doc """
+ Refunds the `amount` to the customer's account with reference to a prior transfer.
+
+ > Refunds are allowed on which kinds of "prior" transactions?
+
+ ## Note
+
+ > The end customer will usually see two bookings/records on his statement. Is
+ > that true for SecurionPay?
+ > Is there a limited time window within which a void can be perfomed?
+
+ ## Example
+
+ > A barebones example using the bindings you've suggested in the `moduledoc`.
+ """
+ @spec refund(Money.t(), String.t(), keyword) :: {:ok | :error, Response}
+ def refund(amount, payment_id, opts) do
+ {currency, value, _, _} = Money.to_integer_exp(amount)
+ url = "charges/#{payment_id}/refund"
+
+ [amount: value]
+ |>commit(url, opts)
+
+
+ end
+
+
  ##########################################################################
  # PRIVATE METHODS #
  ##########################################################################

test/integration/gateways/securion_pay_test.exs

@@ -32,6 +32,7 @@ defmodule Gringotts.Integration.Gateways.SecurionPayTest do
  brand: "VISA"
  }
 
+
  @opts [
  config: [secret_key: "pr_test_tXHm9qV9qV9bjIRHcQr9PLPa"],
  customer_id: "cust_NxPh6PUq9KWUW8tZKkUnV2Nt"
@@ -40,6 +41,7 @@ defmodule Gringotts.Integration.Gateways.SecurionPayTest do
  @bad_opts [config: [secret_key: "pr_test_tXHm9qV9qV9bjIRHcQr9PLPa"]]
 
  @card_id "card_wVuO1a5BGM12UV10FwpkK9YW"
+ @charge_id "char_kA8MOArQQUMtYki0XHybr9fb"
  @bad_charge_id "char_wVuO1a5BGM12UV10FwpkK9YW"
 
  describe "[authorize]" do
@@ -99,4 +101,22 @@ defmodule Gringotts.Integration.Gateways.SecurionPayTest do
  end
  end
  end
+
+ describe "[refund]" do
+ test "with_authorized_payment_id" do
+ use_cassette "securion_pay/valid_refund" do
+ assert {:ok, response} = Gateway.refund(@amount, @charge_id, @opts)
+ assert response.success == true
+ assert response.status_code == 200
+ end
+ end
+
+ test "with_invalid_payment_id" do
+ use_cassette "securion_pay/invalid_refund" do
+ assert {:error, response} = Gateway.refund(@amount, @bad_charge_id, @opts)
+ assert response.success == false
+ refute response.status_code == 200
+ end
+ end
+ end
 end