require 'benchmark'

require 'rational'

$result = nil

$tests = <<END
  Rational(1, 2) + Rational(3, 4)
  Rational(1, 2) + 10
  Rational(1, 3) + 10.6
  10             + Rational(1, 2)
  10.6           + Rational(1, 3)

  Rational(1, 2) - Rational(3, 4)
  Rational(1, 2) - 10
  Rational(1, 3) - 10.6
  10             - Rational(1, 2)
  10.6           - Rational(1, 3)

  Rational(1, 2) * Rational(3, 4)
  Rational(1, 2) * 10
  Rational(1, 3) * 10.6
  10             * Rational(1, 2)
  10.6           * Rational(1, 3)

  Rational(1, 2) / Rational(3, 4)
  Rational(1, 2) / 10
  Rational(1, 3) / 10.6
  10             / Rational(1, 2)
  10.6           / Rational(1, 3)

  Rational(1, 2) ** Rational(3, 4)
  Rational(1, 2) ** 10
  Rational(1, 2) ** -10
  Rational(1, 2) ** 0
  Rational(1, 3) ** 10.6
  10             ** Rational(1, 2)
  10.6           ** Rational(1, 2)
 
  Rational(1, 2) == Rational(3, 4)
  Rational(1, 2) == 10
  Rational(1, 3) == 10.6
  10             == Rational(1, 2)
  10.6           == Rational(1, 3)

  Rational(1, 2) <=> Rational(3, 4)
  Rational(1, 2) <=> 10
  Rational(1, 3) <=> 10.6
  10             <=> Rational(1, 2)
  10.6           <=> Rational(1, 3)

  - Rational(1, 2)
  - Rational(-1, 3)
  - Rational(1, 4)

  Rational(1, 2).abs
  Rational(-1, 3).abs
  Rational(1, 4).abs

  Rational(1, 2).zero?
  Rational(0, 2).zero?

  Rational(1, 2).nonzero?
  Rational(0, 2).nonzero?

  Rational(3, 4).to_s
  Rational(5, 6).inspect
END

if ARGV.include?('--validate')
n = 1
instance_eval($expr = <<"END", __FILE__, __LINE__)
def test_it
  result = [
    #{$tests.split("\n").reject{|x| x =~ /^\s*$/}.join(",\n")}
  ]

  if $result
    unless result == $result
      pp result
      pp $result
      raise "Assertion failed"
    end
  else
    $result = result
  end
end
END
else
n = 100000
n /= 2
instance_eval($expr = <<"END", __FILE__, __LINE__)
def test_it
  #{$tests}
end
END
end
$stderr.puts $expr


Benchmark.bm(40) do | bm |

  1.times do
    ObjectSpace.garbage_collect
    bm.report("test_it") do 
      n.times do
        test_it
      end
    end
  end

######################################################################

  if (require('ks_rational') rescue nil)
    ObjectSpace.garbage_collect
    bm.report("test_it ks_rational") do 
      n.times do
        test_it
      end
    end
  end
    
end