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rubyrubygemsrequirerubymineuninitialized-constant

Uninitialized constant File::NOCTTY error when I require 'fakefs'

I am trying to use FakeFS but keep getting an uninitialized constant error when I require 'fakefs':

C:/Ruby192/lib/ruby/gems/1.9.1/gems/fakefs-0.3.1/lib/fakefs/file.rb:26:in `<class:File>': uninitialized constant File::NOCTTY (NameError)

I was originally working in RubyMine, but to isolate the problem I wrote a simple hello world script and ran it from the command line, and still get the same error. Here is that script:

require 'rubygems'
gem 'fakefs'
require 'fakefs'

puts "Hello Cleveland!"

And here is the error and accompanying stacktrace:

>ruby foo.rb
C:/Ruby192/lib/ruby/gems/1.9.1/gems/fakefs-0.3.1/lib/fakefs/file.rb:26:in `<class:File>': uninitialized constant File::NOCTTY (NameError)
    from C:/Ruby192/lib/ruby/gems/1.9.1/gems/fakefs-0.3.1/lib/fakefs/file.rb:4:in `<module:FakeFS>'
    from C:/Ruby192/lib/ruby/gems/1.9.1/gems/fakefs-0.3.1/lib/fakefs/file.rb:3:in `<top (required)>'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from C:/Ruby192/lib/ruby/gems/1.9.1/gems/fakefs-0.3.1/lib/fakefs/safe.rb:9:in `<top (required)>'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from C:/Ruby192/lib/ruby/gems/1.9.1/gems/fakefs-0.3.1/lib/fakefs.rb:1:in `<top (required)>'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from foo.rb:3:in `<main>'

I installed the fakefs gem via RubyMine. I'm working on Windows with Ruby 1.9. Any ideas?

Solution

  • It's because Windows doesn't have NOCTTY and SYNC flags. You can add this method to the base.rb file:

    def RealFile.const_missing const
  const_set const, 42
end

    Really, I don't know it cause any problems or not in the future but you'll be able to run your script at least. And I think you should write about this at github

    There is a fork with some windows fixes (this guy commented all flags at all): https://github.com/vertiginous/fakefs