module PrecedenceSpecs
  class NonUnaryOpTest
    def add_num(arg)
      [1].collect { |i| arg + i +1 }
    end
    def sub_num(arg)
      [1].collect { |i| arg + i -1 }
    end
    def add_str
      %w[1].collect { |i| i +'1' }
    end
    def add_var
      [1].collect { |i| i +i }
    end
  end
end