From f5132c19d52c4457aa2e09c647d2f52a73966c68 Mon Sep 17 00:00:00 2001
From: Remo Mueller <remosm@gmail.com>
Date: Thu, 26 Feb 2015 09:29:01 -0500
Subject: Mailer preview now uses `url_for` to fix links to emails for apps
 running on a subdirectory, closes #19092.

---
 railties/test/application/mailer_previews_test.rb | 30 +++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'railties/test/application')

diff --git a/railties/test/application/mailer_previews_test.rb b/railties/test/application/mailer_previews_test.rb
index 83501a7f11..1835d42c82 100644
--- a/railties/test/application/mailer_previews_test.rb
+++ b/railties/test/application/mailer_previews_test.rb
@@ -454,6 +454,36 @@ module ApplicationTests
       assert_match '<option selected value="?part=text%2Fplain">View as plain-text email</option>', last_response.body
     end
 
+    test "mailer previews create correct links when loaded on a subdirectory" do
+      mailer 'notifier', <<-RUBY
+        class Notifier < ActionMailer::Base
+          default from: "from@example.com"
+
+          def foo
+            mail to: "to@example.org"
+          end
+        end
+      RUBY
+
+      text_template 'notifier/foo', <<-RUBY
+        Hello, World!
+      RUBY
+
+      mailer_preview 'notifier', <<-RUBY
+        class NotifierPreview < ActionMailer::Preview
+          def foo
+            Notifier.foo
+          end
+        end
+      RUBY
+
+      app('development')
+
+      get "/rails/mailers", {}, 'SCRIPT_NAME' => '/my_app'
+      assert_match '<h3><a href="/my_app/rails/mailers/notifier">Notifier</a></h3>', last_response.body
+      assert_match '<li><a href="/my_app/rails/mailers/notifier/foo">foo</a></li>', last_response.body
+    end
+
     private
       def build_app
         super
-- 
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