Issue #8789 has been updated by Hiroshi SHIBATA.

Target version changed from 2.1.0 to current: 2.2.0

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Bug #8789: File.expand_path(File.dirname(__FILE__)) return wrong encoded result 
https://bugs.ruby-lang.org/issues/8789#change-44793

* Author:  ▒ń╩┐
* Status: Assigned
* Priority: Normal
* Assignee: cruby-windows
* Category: platform/windows
* Target version: current: 2.2.0
* ruby -v: ruby 2.1.0dev (2013-08-10 trunk 42491) [i386-mingw32]
* Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN
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=begin
A test.rb in a nonascii path with the follow content:
(({puts  File.expand_path(File.dirname(__FILE__)).encoding}))
Run it with utf-8 as internal encoding.
expect result: UTF-8
actual resultížUS-ASCII

Tested on windows 7.

I submited a patch to fix this problem but in a wrong way, check it(https://bugs.ruby-lang.org/issues/8774), hope it can help to fix this problem.
=end



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