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module FileSpecs
class SubString < String; end
def self.make_closer(obj, exc=nil)
ScratchPad << :file_opened
class << obj
attr_accessor :close_exception
alias_method :original_close, :close
def close
original_close
ScratchPad << :file_closed
raise @close_exception if @close_exception
end
end
obj.close_exception = exc
end
end
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