--- /dev/null
+require 'test/unit'
+
+$:.unshift "#{File.dirname(__FILE__)}/../lib"
+$:.unshift "#{File.dirname(__FILE__)}/../../activesupport/lib"
+$:.unshift "#{File.dirname(__FILE__)}/../../actionpack/lib"
+require 'action_mailer'
+require 'action_mailer/test_case'
+
+# Show backtraces for deprecated behavior for quicker cleanup.
+ActiveSupport::Deprecation.debug = true
+
+$:.unshift "#{File.dirname(__FILE__)}/fixtures/helpers"
+ActionMailer::Base.template_root = "#{File.dirname(__FILE__)}/fixtures"
+
+class MockSMTP
+ def self.deliveries
+ @@deliveries
+ end
+
+ def initialize
+ @@deliveries = []
+ end
+
+ def sendmail(mail, from, to)
+ @@deliveries << [mail, from, to]
+ end
+
+ def start(*args)
+ yield self
+ end
+end
+
+class Net::SMTP
+ def self.new(*args)
+ MockSMTP.new
+ end
+end
+
+def uses_gem(gem_name, test_name, version = '> 0')
+ require 'rubygems'
+ gem gem_name.to_s, version
+ require gem_name.to_s
+ yield
+rescue LoadError
+ $stderr.puts "Skipping #{test_name} tests. `gem install #{gem_name}` and try again."
+end
+
+# Wrap tests that use Mocha and skip if unavailable.
+unless defined? uses_mocha
+ def uses_mocha(test_name, &block)
+ uses_gem('mocha', test_name, '>= 0.5.5', &block)
+ end
+end
+
+def set_delivery_method(delivery_method)
+ @old_delivery_method = ActionMailer::Base.delivery_method
+ ActionMailer::Base.delivery_method = delivery_method
+end
+
+def restore_delivery_method
+ ActionMailer::Base.delivery_method = @old_delivery_method
+end