1 files changed, 26 insertions, 0 deletions
diff --git a/railties/lib/rails/generators/test_unit/mailer/mailer_generator.rb b/railties/lib/rails/generators/test_unit/mailer/mailer_generator.rb
new file mode 100644
index 0000000000..343c8a3949
--- /dev/null
+++ b/railties/lib/rails/generators/test_unit/mailer/mailer_generator.rb
@@ -0,0 +1,26 @@
+require 'rails/generators/test_unit'
+
+module TestUnit # :nodoc:
+  module Generators # :nodoc:
+    class MailerGenerator < Base # :nodoc:
+      argument :actions, type: :array, default: [], banner: "method method"
+
+      def check_class_collision
+        class_collisions "#{class_name}MailerTest", "#{class_name}MailerPreview"
+      end
+
+      def create_test_files
+        template "functional_test.rb", File.join('test/mailers', class_path, "#{file_name}_mailer_test.rb")
+      end
+
+      def create_preview_files
+        template "preview.rb", File.join('test/mailers/previews', class_path, "#{file_name}_mailer_preview.rb")
+      end
+
+      protected
+        def file_name
+          @_file_name ||= super.gsub(/\_mailer/i, '')
+        end
+    end
+  end
+end