# frozen_string_literal: true require "abstract_unit" class AutoLayoutMailer < ActionMailer::Base default to: "test@localhost", subject: "You have a mail", from: "tester@example.com" def hello mail() end def spam @world = "Earth" mail(body: render(inline: "Hello, <%= @world %>", layout: "spam")) end def nolayout @world = "Earth" mail(body: render(inline: "Hello, <%= @world %>", layout: false)) end def multipart(type = nil) mail(content_type: type) do |format| format.text { render } format.html { render } end end end class ExplicitLayoutMailer < ActionMailer::Base layout "spam", except: [:logout] default to: "test@localhost", subject: "You have a mail", from: "tester@example.com" def signup mail() end def logout mail() end end class LayoutMailerTest < ActiveSupport::TestCase def test_should_pickup_default_layout mail = AutoLayoutMailer.hello assert_equal "Hello from layout Inside", mail.body.to_s.strip end def test_should_pickup_multipart_layout mail = AutoLayoutMailer.multipart assert_equal "multipart/alternative", mail.mime_type assert_equal 2, mail.parts.size assert_equal "text/plain", mail.parts.first.mime_type assert_equal "text/plain layout - text/plain multipart", mail.parts.first.body.to_s assert_equal "text/html", mail.parts.last.mime_type assert_equal "Hello from layout text/html multipart", mail.parts.last.body.to_s end def test_should_pickup_multipartmixed_layout mail = AutoLayoutMailer.multipart("multipart/mixed") assert_equal "multipart/mixed", mail.mime_type assert_equal 2, mail.parts.size assert_equal "text/plain", mail.parts.first.mime_type assert_equal "text/plain layout - text/plain multipart", mail.parts.first.body.to_s assert_equal "text/html", mail.parts.last.mime_type assert_equal "Hello from layout text/html multipart", mail.parts.last.body.to_s end def test_should_pickup_layout_given_to_render mail = AutoLayoutMailer.spam assert_equal "Spammer layout Hello, Earth", mail.body.to_s.strip end def test_should_respect_layout_false mail = AutoLayoutMailer.nolayout assert_equal "Hello, Earth", mail.body.to_s.strip end def test_explicit_class_layout mail = ExplicitLayoutMailer.signup assert_equal "Spammer layout We do not spam", mail.body.to_s.strip end def test_explicit_layout_exceptions mail = ExplicitLayoutMailer.logout assert_equal "You logged out", mail.body.to_s.strip end end