# File lib/fakefs/base.rb, line 47
    def deactivate!
      Object.class_eval do
        remove_const(:Dir)
        remove_const(:File)
        remove_const(:FileTest)
        remove_const(:FileUtils)
        remove_const(:Pathname) if RUBY_VERSION >= '1.9.3'

        const_set(:Dir,       RealDir)
        const_set(:File,      RealFile)
        const_set(:FileTest,  RealFileTest)
        const_set(:FileUtils, RealFileUtils)
        const_set(:Pathname,  RealPathname) if RUBY_VERSION >= '1.9.3'
        ::FakeFS::Kernel.unhijack!
      end

      @activated = false

      true
    end