Bug(?) - ActionMailer responds_to? failing to return true/false bug

Hi,
Code base - Rails 2.3.2

When testing the action mailer object for an existing and non-existant method the object returned is a MatchData class. I've played around in actionmailer/lib/action_mailer/base.rb but haven't determined exactly why this is happening yet.

To replicate this issue:

rails test_mail

cd test_mail

ruby script/generate mailer Mail

Add the following method to app/models/mail.rb: def self.test_method puts "do nothing" end

def test_email puts "this is accessed by Mail.deliver_test_email!" end

ruby script/console

Loading development environment (Rails 2.3.2)

Mail.respond_to?(:something)

=> false

Mail.respond_to?(:deliver_anything)

=> #<MatchData:0x24509f0>

Mail.respond_to?(:create_anything)

=> #<MatchData:0x244e664>

Mail.respond_to?(:test_method)

=> true

Mail.respond_to?(:test_email)

=> false

Mail.respond_to?(:deliver_test_email)

=> #<MatchData:0x2450680>

Mail.respond_to?(:deliver_test_email!)

=> #<MatchData:0x244e1b4>

The workaround I'm using at the moment is testing the method name (without deliver/create) is present in the instance_methods:

Mail.instance_method.include?(:test_email)

But i don't think this is the way i should be testing the existance of a dynamic method on the action mailer object.

Please let me know if i'm looking at this all wrong. Any other info required i'd be happy to help.

Best regards,

Tom