Fixed undefined local variable or method `docs' for #<DocsToCode:0x358cb30> by closing over local vars

gistfile1.rb

require 'spec'

class DocsToCode
    def docs_in(path)
        []
    end
    def code_in(doc)
        ""
    end
    def extract(path)
        code = []
        docs_in(path).each { |doc| code << code_in(doc) }
        code
    end
end

describe DocsToCode do
    describe "when convertings docs to code" do
        docs = ["first doc", "second doc"]
        samples = ["first sample", "second sample"]

        subject do
            sut = DocsToCode.new
            metaclass = class << sut; self; end
            metaclass.send(:define_method, :docs_in) { |path| docs }
            metaclass.send(:define_method, :code_in) do |doc|
                return samples[0] if doc == docs[0]
                return samples[1] if doc == docs[1]
            end
            sut
        end

        it "should extract code sample from each doc" do
            subject.extract("a path").should == samples
        end
    end

end