diff --git a/test/json/test_helper.rb b/test/json/test_helper.rb index 10478aef7e..4955a02c9d 100644 --- a/test/json/test_helper.rb +++ b/test/json/test_helper.rb @@ -15,3 +15,8 @@ begin require 'byebug' rescue LoadError end + +unless defined?(Test::Unit::CoreAssertions) + require "core_assertions" + Test::Unit::TestCase.include Test::Unit::CoreAssertions +end