Cover more tests for #39553.

git-svn-id: https://svn.redmine.org/redmine/trunk@22449 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/unit/lib/redmine/acts/mentionable_test.rb

@@ -29,9 +29,12 @@ class Redmine::Acts::MentionableTest < ActiveSupport::TestCase
          :issues
 
   def test_mentioned_users_with_user_mention
-    issue = Issue.generate!(project_id: 1, description: '@dlopper')
+    to_test = %w(@dlopper @dlopper! @dlopper? @dlopper. @dlopper,)
 
-    assert_equal [User.find(3)], issue.mentioned_users
+    to_test.each do |item|
+      issue = Issue.generate!(project_id: 1, description: item)
+      assert_equal [User.find(3)], issue.mentioned_users
+    end
   end
 
   def test_mentioned_users_with_user_mention_having_mail_as_login