ruby - Rspec/mocks 引发未初始化的常量 BasicObject::RSpec

Question

我刚刚安装了 rspec 和 rspec-mocks 但我无法运行最简单的设置

irb(main):001:0> require 'rspec'
=> true
irb(main):004:0> require 'rspec/mocks'
=> false
irb(main):006:0> RSpec::Mocks::setup(Object.new)
NameError: uninitialized constant BasicObject::RSpec
    from /usr/local/Cellar/ruby/1.9.1-p376/lib/ruby/gems/1.9.1/gems/rspec-mocks-2.13.0/lib/rspec/mocks.rb:60:in `block in add_extensions'
    from /usr/local/Cellar/ruby/1.9.1-p376/lib/ruby/gems/1.9.1/gems/rspec-mocks-2.13.0/lib/rspec/mocks.rb:60:in `class_eval'
    from /usr/local/Cellar/ruby/1.9.1-p376/lib/ruby/gems/1.9.1/gems/rspec-mocks-2.13.0/lib/rspec/mocks.rb:60:in `add_extensions'
    from /usr/local/Cellar/ruby/1.9.1-p376/lib/ruby/gems/1.9.1/gems/rspec-mocks-2.13.0/lib/rspec/mocks.rb:11:in `setup'
    from (irb):6
    from /usr/local/Cellar/ruby/1.9.1-p376/bin/irb:12:in `<main>'

我想知道可能出了什么问题，我是否需要加载其他 gem？

Answer 1

Jonathan 在正确的轨道上，但问题的根源是与 1.8.7 的不兼容，因为::BasicObject 仍然存在于 Ruby 1.9 中。

通过将 补丁 限制为 Ruby 1.8 来更恰本地指定作者正在修补的内容的正确解决方案:

def method_host
  # On 1.8.7, Object.ancestors.last == Kernel but
  # things blow up if we include `RSpec::Mocks::Methods`
  # into Kernel...not sure why.
  return Object unless defined?(::BasicObject) && RUBY_VERSION =~ /^1\.8\.\d+/

  # MacRuby has BasicObject but it's not the root class.
  return Object unless Object.ancestors.last == ::BasicObject

  ::BasicObject
end