add_regex returns inspected value for non Regexp objects. Workaround, so users don't have to care about enclosing values in double quotes.

1 files changed, 2 insertions, 1 deletions

diff --git a/actionpack/lib/action_dispatch/testing/assertions/selector.rb b/actionpack/lib/action_dispatch/testing/assertions/selector.rb
index b6b47a6771..504eccd0a7 100644
--- a/actionpack/lib/action_dispatch/testing/assertions/selector.rb
+++ b/actionpack/lib/action_dispatch/testing/assertions/selector.rb
@@ -428,7 +428,8 @@ module ActionDispatch
             end
 
             def add_regex(regex)
-              return regex unless regex.is_a?(Regexp)
+              # Nokogiri doesn't like arbitrary values without quotes, hence inspect.
+              return regex.inspect unless regex.is_a?(Regexp)
               @regexes.push(regex)
               last_id.to_s # avoid implicit conversions of Fixnum to String
             end