ThinEvent reason and livemode (#1516)

* added test for parsing v2 thin events with livemode and reason

* added attr_reader to ThinEvent for livemode and reason

* added EventReason and EventReasonRequest type to thin_event.rb

Author: jar-stripe

lib/stripe/thin_event.rb

@@ -1,8 +1,26 @@
 # frozen_string_literal: true
 
 module Stripe
+  class EventReasonRequest
+    attr_reader :id, :idempotency_key
+
+    def initialize(event_reason_request_payload = {})
+      @id = event_reason_request_payload[:id]
+      @idempotency_key = event_reason_request_payload[:idempotency_key]
+    end
+  end
+
+  class EventReason
+    attr_reader :type, :request
+
+    def initialize(event_reason_payload = {})
+      @type = event_reason_payload[:type]
+      @request = EventReasonRequest.new(event_reason_payload[:request])
+    end
+  end
+
   class ThinEvent
-    attr_reader :id, :type, :created, :context, :related_object
+    attr_reader :id, :type, :created, :context, :related_object, :livemode, :reason
 
     def initialize(event_payload = {})
       @id = event_payload[:id]
@@ -11,7 +29,9 @@ def initialize(event_payload = {})
       @context = event_payload[:context]
       @livemode = event_payload[:livemode]
       @related_object = event_payload[:related_object]
-      @reason = event_payload[:reason]
+      return if event_payload[:reason].nil?
+
+      @reason = EventReason.new(event_payload[:reason])
     end
   end
 end

test/stripe/v2_event_test.rb

@@ -36,6 +36,26 @@ def retrieve_event(evt_id)
           },
         }.to_json
 
+        @v2_push_payload_with_livemode_and_reason = {
+          "id" => "evt_234",
+          "object" => "v2.core.event",
+          "type" => "v1.billing.meter.error_report_triggered",
+          "created" => "2022-02-15T00:27:45.330Z",
+          "related_object" => {
+            "id" => "mtr_123",
+            "type" => "billing.meter",
+            "url" => "/v1/billing/meters/mtr_123",
+          },
+          "livemode" => true,
+          "reason" => {
+            "type" => "a.b.c",
+            "request" => {
+              "id" => "r_123",
+              "idempotency_key" => "key",
+            },
+          },
+        }.to_json
+
         @v2_pull_payload = {
           "id" => "evt_234",
           "object" => "v2.core.event",
@@ -76,6 +96,20 @@ def retrieve_event(evt_id)
           assert_equal "evt_234", event.id
           assert_equal "v1.billing.meter.error_report_triggered", event.type
           assert_equal "2022-02-15T00:27:45.330Z", event.created
+          assert_nil event.reason
+        end
+
+        should "parse v2 events with livemode and reason" do
+          event = parse_signed_event(@v2_push_payload_with_livemode_and_reason)
+          assert event.is_a?(Stripe::ThinEvent)
+          assert_equal "evt_234", event.id
+          assert_equal "v1.billing.meter.error_report_triggered", event.type
+          assert_equal "2022-02-15T00:27:45.330Z", event.created
+          assert_true event.livemode
+          assert_not_nil event.reason
+          assert_equal "a.b.c", event.reason.type
+          assert_equal "r_123", event.reason.request.id
+          assert_equal "key", event.reason.request.idempotency_key
         end
 
         should "raise a JSON::ParserError from an invalid JSON payload" do