Issue #7523 has been reported by phasis68 (Heesob Park). ---------------------------------------- Bug #7523: test_modify_expand_memory_leak(Test_StringModifyExpand) fails https://bugs.ruby-lang.org/issues/7523 Author: phasis68 (Heesob Park) Status: Open Priority: Normal Assignee: Category: Target version: ruby -v: ruby 2.0.0dev (2012-12-06 trunk 38223) [x64-mingw32] I can see following failure with x64-mingw32 on Windows 7. 50) Failure: test_modify_expand_memory_leak(Test_StringModifyExpand) [c:/work/snapshot-mg64/test/-ext-/string/test_modify_expand.rb:7]:rb_str_modify_expand(). <[true, ""]> expected but was <[false, "c:/work/snapshot-mg64/test/ruby/memory_status.rb:25:in `rescue in <module:Memory>': undefined method `suppress_warning' for Memory:Module (NoMethodError)\n\tfrom c:/work/snapshot-mg64/test/ruby/memory_status.rb:20:in `<module:Memory>'\n\tfrom c:/work/snapshot-mg64/test/ruby/memory_status.rb:3:in `<top (required)>'\n\tfrom -:1:in `require'\n"]>. -- http://bugs.ruby-lang.org/