1 files changed, 15 insertions, 1 deletions
diff --git a/actionmailer/test/parameterized_test.rb b/actionmailer/test/parameterized_test.rb
index f52945590b..914ed12312 100644
--- a/actionmailer/test/parameterized_test.rb
+++ b/actionmailer/test/parameterized_test.rb
@@ -33,9 +33,23 @@ class ParameterizedTest < ActiveSupport::TestCase
     assert_equal("So says david@basecamp.com", @mail.body.encoded)
   end
 
-  test "should enqueue the email with params" do
+  test "enqueue the email with params" do
     assert_performed_with(job: ActionMailer::Parameterized::DeliveryJob, args: ["ParamsMailer", "invitation", "deliver_now", { inviter: "david@basecamp.com", invitee: "jason@basecamp.com" } ]) do
       @mail.deliver_later
     end
   end
+
+  test "respond_to?" do
+    mailer = ParamsMailer.with(inviter: "david@basecamp.com", invitee: "jason@basecamp.com")
+
+    assert_respond_to mailer, :invitation
+    assert_not_respond_to mailer, :anything
+
+    invitation = mailer.method(:invitation)
+    assert_equal Method, invitation.class
+
+    assert_raises(NameError) do
+      invitation = mailer.method(:anything)
+    end
+  end
 end