Add regression check for mailer with global job is and fix swapped argument bug

Author: JonRowe

lib/rspec/rails/matchers/have_enqueued_mail.rb

@@ -145,7 +145,7 @@ def deserialize_arguments(job)
           if hash.key?("_aj_ruby2_keywords")
             keywords = hash["_aj_ruby2_keywords"]
 
-            original_hash = keywords.each_with_object({}) { |new_hash, keyword| new_hash[keyword.to_sym] = hash[keyword] }
+            original_hash = keywords.each_with_object({}) { |keyword, new_hash| new_hash[keyword.to_sym] = hash[keyword] }
 
             args + [original_hash]
           elsif hash.key?(:args) && hash.key?(:params)

spec/rspec/rails/matchers/have_enqueued_mail_spec.rb

@@ -4,6 +4,12 @@
   require "action_mailer"
   require "rspec/rails/matchers/have_enqueued_mail"
 
+  class GlobalIDArgument
+    include GlobalID::Identification
+    def id; 1; end
+    def to_global_id(options = {}); super(options.merge(app: 'rspec-rails')); end
+  end
+
   class TestMailer < ActionMailer::Base
     def test_email; end
     def email_with_args(arg1, arg2); end
@@ -413,6 +419,12 @@ def self.name; "NonMailerJob"; end
         )
       end
 
+      it "passes when given a global id serialised argument" do
+        expect {
+          UnifiedMailer.with(inquiry: GlobalIDArgument.new).test_email.deliver_later
+        }.to have_enqueued_email(UnifiedMailer, :test_email)
+      end
+
       it "passes when using a mailer with `delivery_job` set to a sub class of `ActionMailer::DeliveryJob`" do
         expect {
           UnifiedMailerWithDeliveryJobSubClass.test_email.deliver_later