# File lib/rspec/matchers/equal.rb, line 16
    def equal(expected)
      Matcher.new :equal, expected do |_expected_|
        match do |actual|
          actual.equal?(_expected_)
        end
        
        def inspect_object(o)
          "#<#{o.class}:#{o.object_id}> => #{o.inspect}"
        end
        
        failure_message_for_should do |actual|
          "\nexpected \#{inspect_object(_expected_)}\ngot \#{inspect_object(actual)}\n\nCompared using equal?, which compares object identity,\nbut expected and actual are not the same object. Use\n'actual.should == expected' if you don't care about\nobject identity in this example.\n\n"
        end

        failure_message_for_should_not do |actual|
          "\nexpected not \#{inspect_object(actual)}\ngot \#{inspect_object(_expected_)}\n\nCompared using equal?, which compares object identity.\n\n"
        end
      end
    end