Merge pull request rails#25736 from voxik/file-store-test-require-pathname

Pathname might not be always initialized.

Author: rafaelfranca

activesupport/test/caching_test.rb

@@ -3,6 +3,8 @@
 require 'active_support/cache'
 require 'dependencies_test_helpers'
 
+require 'pathname'
+
 module ActiveSupport
   module Cache
     module Strategy