Parameterized mailers can configure delivery job

Setting parameterized_delivery_job on a mailer class will cause Parameterized::MessageDelivery to use
the specified job instead of ActionMailer::Parameterized::DeliveryJob:

    class MyMailer < ApplicationMailer
      self.parameterized_delivery_job = MyCustomDeliveryJob
      ...
    end

1 files changed, 13 insertions, 0 deletions

diff --git a/actionmailer/test/parameterized_test.rb b/actionmailer/test/parameterized_test.rb
index ec6c5e9e67..d3b34fc3e3 100644
--- a/actionmailer/test/parameterized_test.rb
+++ b/actionmailer/test/parameterized_test.rb
@@ -53,4 +53,17 @@ class ParameterizedTest < ActiveSupport::TestCase
       invitation = mailer.method(:anything)
     end
   end
+
+  test "should enqueue a parameterized request with the correct delivery job" do
+    old_delivery_job = ParamsMailer.parameterized_delivery_job
+    ParamsMailer.parameterized_delivery_job = ParameterizedDummyJob
+
+    assert_performed_with(job: ParameterizedDummyJob, args: ["ParamsMailer", "invitation", "deliver_now", { inviter: "david@basecamp.com", invitee: "jason@basecamp.com" } ]) do
+      @mail.deliver_later
+    end
+
+    ParamsMailer.parameterized_delivery_job = old_delivery_job
+  end
+
+  class ParameterizedDummyJob < ActionMailer::Parameterized::DeliveryJob; end
 end