# File lib/shoulda/action_mailer/assertions.rb, line 33
33:       def assert_did_not_send_email
34:         ::ActiveSupport::Deprecation.warn("use: should_not have_sent_email")
35:         msg = "Sent #{::ActionMailer::Base.deliveries.size} emails.\n"
36:         ::ActionMailer::Base.deliveries.each { |m| msg << "  '#{m.subject}' sent to #{m.to.to_sentence}\n" }
37:         assert ::ActionMailer::Base.deliveries.empty?, msg
38:       end