Issue #6813 has been reported by h.shirosaki (Hiroshi Shirosaki).

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Bug #6813: TestRubyOptions#test_encoding failure on Windows
https://bugs.ruby-lang.org/issues/6813

Author: h.shirosaki (Hiroshi Shirosaki)
Status: Open
Priority: Normal
Assignee: luislavena (Luis Lavena)
Category: 
Target version: 2.0.0
ruby -v: ruby 2.0.0dev (2012-07-30 trunk 36577) [x64-mswin64_100]


TestRubyOptions#test_encoding fails. This failure depends on cmd code page.
With chcp 932 the test passes, but with chcp 65001, 1252 and so on the test fails.

[ 9/38] TestRubyOptions#test_encoding = 0.04 s
  1) Failure:
test_encoding(TestRubyOptions) [C:/Users/hiroshi/work/ruby/test/ruby/test_rubyop
tions.rb:202]:
<[]> expected but was
<["\"\\xE3\\x81\\x82\""]>.


This test depends on STDIN encoding which is determined system locale.
And LANG=C is set when invoking ruby.

https://github.com/ruby/ruby/blob/trunk/test/ruby/envutil.rb#L48

But LANG doesn't affect locale with trunk ruby on Windows by the following commit.
https://github.com/ruby/ruby/commit/5a2758ed

So test results would differ according to cmd code page.

I've attached a patch to work with not 932 code page.


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