CybersourceREST - Refund | Credit

Description
-------------------------
This integration support the following payment operations:
- Refund
- Credit

Unit test
-------------------------
Finished in 40.91494 seconds.
5454 tests, 77134 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
100% passed

Remote test
-------------------------
133.30 tests/s, 1885.23 assertions/s

Rubocop
-------------------------
760 files inspected, no offenses detected

GWI-471

lib/active_merchant/billing/gateways/cyber_source_rest.rb

@@ -44,7 +44,17 @@ def authorize(money, payment, options = {}, capture = false)
         post = build_auth_request(money, payment, options)
         post[:processingInformation] = { capture: true } if capture
 
-        commit('/pts/v2/payments/', post)
+        commit('payments', post)
+      end
+
+      def refund(money, authorization, options = {})
+        post = build_refund_request(money, options)
+        commit("payments/#{authorization}/refunds", post)
+      end
+
+      def credit(money, payment, options = {})
+        post = build_credit_request(money, payment, options)
+        commit('credits', post)
       end
 
       def supports_scrubbing?
@@ -73,6 +83,23 @@ def build_auth_request(amount, payment, options)
         end.compact
       end
 
+      def build_refund_request(amount, options)
+        { clientReferenceInformation: {}, orderInformation: {} }.tap do |post|
+          add_code(post, options)
+          add_amount(post, amount)
+        end.compact
+      end
+
+      def build_credit_request(amount, payment, options)
+        { clientReferenceInformation: {}, paymentInformation: {}, orderInformation: {} }.tap do |post|
+          add_code(post, options)
+          add_credit_card(post, payment)
+          add_amount(post, amount)
+          add_address(post, payment, options[:billing_address], options, :billTo)
+          add_merchant_description(post, options)
+        end.compact
+      end
+
       def add_code(post, options)
         return unless options[:order_id].present?
 
@@ -129,8 +156,17 @@ def add_address(post, payment_method, address, options, address_type)
         }.compact
       end
 
+      def add_merchant_description(post, options)
+        return unless options[:merchant_descriptor_name] || options[:merchant_descriptor_address1] || options[:merchant_descriptor_locality]
+
+        merchant = post[:merchantInformation][:merchantDescriptor] = {}
+        merchant[:name] = options[:merchant_descriptor_name] if options[:merchant_descriptor_name]
+        merchant[:address1] = options[:merchant_descriptor_address1] if options[:merchant_descriptor_address1]
+        merchant[:locality] = options[:merchant_descriptor_locality] if options[:merchant_descriptor_locality]
+      end
+
       def url(action)
-        "#{(test? ? test_url : live_url)}#{action}"
+        "#{(test? ? test_url : live_url)}/pts/v2/#{action}"
       end
 
       def host
@@ -160,7 +196,7 @@ def commit(action, post)
       end
 
       def success_from(response)
-        response['status'] == 'AUTHORIZED'
+        %w(AUTHORIZED PENDING).include?(response['status'])
       end
 
       def message_from(response)
@@ -183,7 +219,7 @@ def get_http_signature(resource, digest, http_method = 'post', gmtdatetime = Tim
         string_to_sign = {
           host: host,
           date: gmtdatetime,
-          "(request-target)": "#{http_method} #{resource}",
+          "(request-target)": "#{http_method} /pts/v2/#{resource}",
           digest: digest,
           "v-c-merchant-id": @options[:merchant_id]
         }.map { |k, v| "#{k}: #{v}" }.join("\n").force_encoding(Encoding::UTF_8)

test/remote/gateways/remote_cyber_source_rest_test.rb

@@ -70,6 +70,77 @@ def test_successful_purchase
     assert_nil response.params['_links']['capture']
   end
 
+  def test_successful_refund
+    purchase = @gateway.purchase(@amount, @visa_card, @options)
+    response = @gateway.refund(@amount, purchase.authorization, @options)
+
+    assert_success response
+    assert response.test?
+    assert_equal 'PENDING', response.message
+    assert response.params['id'].present?
+    assert response.params['_links']['void'].present?
+  end
+
+  def test_failure_refund
+    purchase = @gateway.purchase(@amount, @card_without_funds, @options)
+    response = @gateway.refund(@amount, purchase.authorization, @options)
+
+    assert_failure response
+    assert response.test?
+    assert_match %r{Declined - One or more fields in the request contains invalid data}, response.params['message']
+    assert_equal 'INVALID_DATA', response.params['reason']
+  end
+
+  def test_successful_partial_refund
+    purchase = @gateway.purchase(@amount, @visa_card, @options)
+    response = @gateway.refund(@amount / 2, purchase.authorization, @options)
+
+    assert_success response
+    assert response.test?
+    assert_equal 'PENDING', response.message
+    assert response.params['id'].present?
+    assert response.params['_links']['void'].present?
+  end
+
+  def test_successful_repeat_refund_transaction
+    purchase = @gateway.purchase(@amount, @visa_card, @options)
+    response1 = @gateway.refund(@amount, purchase.authorization, @options)
+
+    assert_success response1
+    assert response1.test?
+    assert_equal 'PENDING', response1.message
+    assert response1.params['id'].present?
+    assert response1.params['_links']['void']
+
+    response2 = @gateway.refund(@amount, purchase.authorization, @options)
+    assert_success response2
+    assert response2.test?
+    assert_equal 'PENDING', response2.message
+    assert response2.params['id'].present?
+    assert response2.params['_links']['void']
+
+    assert_not_equal response1.params['_links']['void'], response2.params['_links']['void']
+  end
+
+  def test_successful_credit
+    response = @gateway.credit(@amount, @visa_card, @options)
+
+    assert_success response
+    assert response.test?
+    assert_equal 'PENDING', response.message
+    assert response.params['id'].present?
+    assert_nil response.params['_links']['capture']
+  end
+
+  def test_failure_credit
+    response = @gateway.credit(@amount, @card_without_funds, @options)
+
+    assert_failure response
+    assert response.test?
+    assert_match %r{Decline - Invalid account number}, response.message
+    assert_equal 'INVALID_ACCOUNT', response.error_code
+  end
+
   def test_transcript_scrubbing
     transcript = capture_transcript(@gateway) do
       @gateway.authorize(@amount, @visa_card, @options)

test/unit/gateways/cyber_source_rest_test.rb

@@ -149,7 +149,7 @@ def test_add_shipping_address
   end
 
   def test_url_building
-    assert_equal "#{@gateway.class.test_url}/action", @gateway.send(:url, '/action')
+    assert_equal "#{@gateway.class.test_url}/pts/v2/action", @gateway.send(:url, 'action')
   end
 
   private