Merged r22285 from trunk to 5.0-stable (#38697).

git-svn-id: https://svn.redmine.org/redmine/branches/5.0-stable@22286 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/redmine/wiki_formatting/macros.rb

@@ -281,7 +281,7 @@ module Redmine
 
         container = obj.is_a?(Journal) ? obj.journalized : obj
         attachments = container.attachments if container.respond_to?(:attachments)
-        if (controller_name == 'previews' || action_name == 'preview') && @attachments.present?
+        if (controller_path == 'previews' || action_name == 'preview') && @attachments.present?
           attachments = (attachments.to_a + @attachments).compact
         end
         if attachments.present? && (attachment = Attachment.latest_attach(attachments, filename))

test/unit/mailer_test.rb

@@ -199,6 +199,18 @@ class MailerTest < ActiveSupport::TestCase
     end
   end
 
+  def test_thumbnail_macro_in_email
+    set_tmp_attachments_directory
+    issue = Issue.generate!(:description => '{{thumbnail(image.png)}}')
+    issue.attachments << Attachment.new(:file => mock_file_with_options(:original_filename => 'image.png'), :author => User.find(1))
+    issue.save!
+
+    assert Mailer.deliver_issue_add(issue)
+    assert_select_email do
+      assert_select 'img[alt="image.png"]'
+    end
+  end
+
   def test_email_headers
     with_settings :mail_from => 'Redmine <redmine@example.net>' do
       issue = Issue.find(1)