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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