Issue #6814 has been reported by h.shirosaki (Hiroshi Shirosaki).

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Bug #6814: Test failures in test_win32ole_variant.rb
https://bugs.ruby-lang.org/issues/6814

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


Originally this was reported on RubyInstaller-list by dmajkic.
https://groups.google.com/d/msg/rubyinstaller/a4TS9XAsia0/NkZZOzG6n4wJ

Quote:
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This one is about 3 failures I have in "test_win32ole_variant.rb". 
Those are: 

  test_s_array 
  test_conversion_str2num 
  test_conversion_ole_variant2ole_variant 

After looking at the win32ole.c, I see that the default locale 
is  LOCALE_SYSTEM_DEFAULT. That means that the locale 
is from the Windows, and is not affected by the console settings. 

Since I am using "Serbian Latin", which sets coma as decimal 
separator (eg. 123456,78), all three tests fail simply because 
Windows API tires to convert string to number using wrong locale. 
String is in US locale, but conversion API uses system default. 

Since WIN32OLE.locale=  exists, setting it to 1033 (US English), 
solves all three tests as "pass". It looks like this: 

def test_conversion_str2num 
  WIN32OLE.locale = 1033 # set US-Eng locale - number with decimal point 
  obj = WIN32OLE_VARIANT.new("12.345", WIN32OLE::VARIANT::VT_R8) 
  assert_equal(12.345, obj.value) 
end

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I've created the following patch based on above analysis.
It seems to work fine.

https://gist.github.com/3202976



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