101 lines
3.0 KiB
Ruby
101 lines
3.0 KiB
Ruby
require 'minitest/autorun'
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require 'prism'
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require 'support'
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require 'tmpdir'
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require 'fileutils'
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class MailerPreviewAppTest < Minitest::Test
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include TestSupport
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def setup
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@dir = Dir.mktmpdir('prism-mailer-preview-app')
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FileUtils.mkdir_p(File.join(@dir, 'preview_widget'))
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File.write(File.join(@dir, 'preview_widget/welcome.text.erb'), "Hi <%= name %>\n")
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File.write(File.join(@dir, 'preview_widget/welcome.html.erb'), "<p>Hi <%= name %></p>\n")
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mailer_dir = @dir
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@mailer_class = Class.new(Prism::Mailer::Base) do
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self.template_roots = [mailer_dir]
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def welcome(name)
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@name = name
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mail(to: 'someone@example.com', from: 'app@example.com', subject: 'Welcome!')
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end
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end
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Object.const_set(:PreviewWidgetMailer, @mailer_class)
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mailer_class = @mailer_class
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@preview_class = Class.new(Prism::Mailer::Preview) do
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define_method(:welcome) { mailer_class.welcome('Fixture Fred') }
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end
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Object.const_set(:WidgetMailerPreview, @preview_class)
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@app = Prism::Mailer::PreviewApp.new
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end
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def teardown
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Prism::Mailer::Preview.registry.delete(@preview_class)
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%i[WidgetMailerPreview PreviewWidgetMailer].each do |name|
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Object.send(:remove_const, name) if Object.const_defined?(name)
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end
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FileUtils.remove_entry(@dir)
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end
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def call(path, script_name: '')
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env = env_for('GET', path)
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env['SCRIPT_NAME'] = script_name
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@app.call(env)
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end
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def test_index_lists_registered_previews
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status, _, body = call('/')
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assert_equal 200, status
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assert_includes body.join, 'widget_mailer'
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end
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def test_preview_page_lists_its_email_actions
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status, _, body = call('/widget_mailer')
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assert_equal 200, status
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assert_includes body.join, 'welcome'
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end
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def test_email_page_renders_the_actual_rendered_html_body
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status, headers, body = call('/widget_mailer/welcome')
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assert_equal 200, status
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assert_equal 'text/html; charset=UTF-8', headers['Content-Type']
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assert_includes body.join, '<p>Hi Fixture Fred</p>'
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assert_includes body.join, 'Welcome!'
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end
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def test_email_page_never_delivers_the_message
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Prism::Mailer.deliveries.clear
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call('/widget_mailer/welcome')
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assert_empty Prism::Mailer.deliveries
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end
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def test_unknown_preview_is_a_404
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status, = call('/does_not_exist')
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assert_equal 404, status
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end
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def test_unknown_email_action_is_a_404
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status, = call('/widget_mailer/does_not_exist')
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assert_equal 404, status
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end
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def test_links_are_built_from_script_name_so_mounting_anywhere_works
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_, _, body = call('/', script_name: '/rails/mailers')
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assert_includes body.join, 'href="/rails/mailers/widget_mailer"'
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end
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def test_mounted_end_to_end_through_an_application
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host_app = Class.new(Prism::Application) do
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mount '/rails/mailers', Prism::Mailer::PreviewApp.new
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end
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status, _, body = host_app.call(env_for('GET', '/rails/mailers/widget_mailer/welcome'))
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assert_equal 200, status
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assert_includes body.join, '<p>Hi Fixture Fred</p>'
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end
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end
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