djberg96 / gmail.com wrote:
> Bug #12413: Dir#close does not raise IOError on already closed handle on OS X
> https://bugs.ruby-lang.org/issues/12413

> * ruby -v: ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-darwin15]
> ----------------------------------------
> The docs for Dir#close say "Closes the directory stream. Any further
> attempts to access dir will raise an IOError."

Seems to be a documentation bug, fixed in r55120
IO#close and Dir#close are idempotent on 2.3+

	https://bugs.ruby-lang.org/issues/10718

> Whereas on both Linux and Windows I get the expected error:
> 
>     IOError: closed directory

Older version of Ruby?

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