added email_spec dependency

spec/mailers/order_mailer_spec.rb

@@ -1,13 +1,17 @@
 require 'spec_helper'
-
+require 'email_spec'
 module Spree
+
   describe OrderMailer do
+    include EmailSpec::Helpers
+    include EmailSpec::Matchers
+
     let(:order) { FactoryGirl.create(:order, :locale => :fr) }
     let(:mail) { ActionMailer::Base.deliveries.last }
 
     it "should use i18n email template" do
-      OrderMailer.confirm_email(order, true).deliver
-      mail.encoded.should include("Merci")
+      mail = OrderMailer.confirm_email(order, true)
+      mail.body.should include("Merci")
     end
   end
 end

spree_multi_lingual.gemspec

@@ -34,6 +34,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'launchy', '2.0.5'
   s.add_development_dependency 'awesome_print'
   s.add_development_dependency 'deface', '~> 1.0.0.rc2'
+  s.add_development_dependency 'email_spec', '~> 1.2.1'
   # Seems Spree doesn't require it correctly or there is a problem with extensions maybe? Still, it is needed to work with the dummy app!
   s.add_development_dependency 'sass-rails'
 end