@rafaelfranca I'm not sure if this is the right move.

The tests on line 112 and 119 in delivery_methods_test.rb we're breaking when all the actionmailer tests we're running (i.e. running just the file the tests passed).

The tests expected the `ActionMailer::Base.delivery_method` to be `:smtp` and not `:test`, which they were on this branch. The only thing different between master and this branch is that `assert_select_email_test` file. Indeed commenting out the whole class makes the tests pass, while commenting out just the test methods made them break.

I hope I've made the problem clear, it was very confusing to figure out.