Add support for CreditNote

lib/stripe.rb

@@ -52,6 +52,7 @@
 require "stripe/checkout/session"
 require "stripe/country_spec"
 require "stripe/coupon"
+require "stripe/credit_note"
 require "stripe/customer"
 require "stripe/discount"
 require "stripe/dispute"

lib/stripe/credit_note.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module Stripe
+  class CreditNote < APIResource
+    extend Stripe::APIOperations::List
+    include Stripe::APIOperations::Save
+    extend Stripe::APIOperations::Create
+
+    OBJECT_NAME = "credit_note".freeze
+
+    custom_method :void_credit_note, http_verb: :post, http_path: "void"
+
+    def void_credit_note(params = {}, opts = {})
+      url = resource_url + "/void"
+      resp, opts = request(:post, url, params, opts)
+      initialize_from(resp.data, opts)
+    end
+  end
+end

lib/stripe/util.rb

@@ -61,6 +61,7 @@ def self.object_classes # rubocop:disable Metrics/MethodLength
         Checkout::Session::OBJECT_NAME            => Checkout::Session,
         CountrySpec::OBJECT_NAME                  => CountrySpec,
         Coupon::OBJECT_NAME                       => Coupon,
+        CreditNote::OBJECT_NAME                   => CreditNote,
         Customer::OBJECT_NAME                     => Customer,
         Discount::OBJECT_NAME                     => Discount,
         Dispute::OBJECT_NAME                      => Dispute,

test/stripe/credit_note_test.rb

@@ -0,0 +1,61 @@
+# frozen_string_literal: true
+
+require ::File.expand_path("../../test_helper", __FILE__)
+
+module Stripe
+  class CreditNoteTest < Test::Unit::TestCase
+    should "be listable" do
+      credit_notes = Stripe::CreditNote.list
+      assert_requested :get, "#{Stripe.api_base}/v1/credit_notes"
+      assert credit_notes.data.is_a?(Array)
+      assert credit_notes.first.is_a?(Stripe::CreditNote)
+    end
+
+    should "be retrievable" do
+      credit_note = Stripe::CreditNote.retrieve("cn_123")
+      assert_requested :get, "#{Stripe.api_base}/v1/credit_notes/cn_123"
+      assert credit_note.is_a?(Stripe::CreditNote)
+    end
+
+    should "be creatable" do
+      credit_note = Stripe::CreditNote.create(
+        amount: 100,
+        invoice: "in_123",
+        reason: "duplicate"
+      )
+      assert_requested :post, "#{Stripe.api_base}/v1/credit_notes"
+      assert credit_note.is_a?(Stripe::CreditNote)
+    end
+
+    should "be saveable" do
+      credit_note = Stripe::CreditNote.retrieve("cn_123")
+      credit_note.metadata["key"] = "value"
+      credit_note.save
+      assert_requested :post, "#{Stripe.api_base}/v1/credit_notes/#{credit_note.id}"
+    end
+
+    should "be updateable" do
+      credit_note = Stripe::CreditNote.update("cn_123", metadata: { key: "value" })
+      assert_requested :post, "#{Stripe.api_base}/v1/credit_notes/cn_123"
+      assert credit_note.is_a?(Stripe::CreditNote)
+    end
+
+    context "#void_credit_note" do
+      should "void credit_note" do
+        credit_note = Stripe::CreditNote.retrieve("cn_123")
+        credit_note = credit_note.void_credit_note
+        assert_requested :post,
+                         "#{Stripe.api_base}/v1/credit_notes/#{credit_note.id}/void"
+        assert credit_note.is_a?(Stripe::CreditNote)
+      end
+    end
+
+    context ".void_credit_note" do
+      should "void credit_note" do
+        credit_note = Stripe::CreditNote.void_credit_note("cn_123")
+        assert_requested :post, "#{Stripe.api_base}/v1/credit_notes/cn_123/void"
+        assert credit_note.is_a?(Stripe::CreditNote)
+      end
+    end
+  end
+end