Eager load ActionMailer::Base

Gemfile

@@ -1,6 +1,7 @@
 source 'https://rubygems.org'
 
-if RUBY_VERSION >= '1.9.2' && RUBY_ENGINE == 'ruby'
-  gem 'debugger'
+if RUBY_VERSION >= '2.0'
+  gem 'byebug'
 end
+
 gemspec

lib/capybara-email.rb

@@ -1,5 +1,14 @@
 require 'capybara'
 require 'mail'
+
+if defined?(ActionMailer)
+  # Rails 4's ActionMailer::Base is autoloaded
+  # so in the test suite the Mail constant is not
+  # available untl ActionMailer::Base is eval'd
+  # So we must eager-load it
+  ActionMailer::Base
+end
+
 module Capybara
   autoload :Email, 'capybara/email'
 end

spec/spec_helper.rb

@@ -1,9 +1,10 @@
 require 'rubygems'
+require 'bundler/setup'
+
 begin
-  require 'debugger'
+  require 'byebug'
 rescue LoadError
 end
-require 'bundler/setup'
 
 RSpec.configure do |config|
   config.mock_with :mocha