require File.expand_path(File.dirname(__FILE__) + '/test_helper')

class Mailer < ActionMailer::Base
  self.delivery_method = :activerecord

  def mail
    @mail = Object.new
    def @mail.encoded() 'email' end
    def @mail.from() ['nobody@example.com'] end
    def @mail.[](key) {'return-path' => $return_path, 'from' => 'nobody@example.com'}[key] end
    def @mail.destinations() %w[user1@example.com user2@example.com] end
  end

end

class TestARMailer < Test::Unit::TestCase

  def setup
    $return_path = nil
    Mailer.email_class = Email

    Email.records.clear
    Newsletter.records.clear
  end

  def test_self_email_class_equals
    Mailer.email_class = Newsletter

    Mailer.deliver_mail

    assert_equal 2, Newsletter.records.length
  end
  
  def test_perform_delivery_activerecord_when_return_path_is_present
    $return_path = stub(:spec => 'return-path@example.com')
    Mailer.deliver_mail

    assert_equal 2, Email.records.length
    record = Email.records.first
    assert_equal 'return-path@example.com', record.from
  end

  def test_perform_delivery_activerecord
    Mailer.deliver_mail

    assert_equal 2, Email.records.length

    record = Email.records.first
    assert_equal 'email', record.mail
    assert_equal 'user1@example.com', record.to
    assert_equal 'nobody@example.com', record.from

    assert_equal 'user2@example.com', Email.records.last.to
  end

end