Benchmark Ruby's Range#cover? vs Enumerable#include?

include_vs_cover.rb

#! /usr/bin/env ruby

require "benchmark"

SET = (1..100)
N = (ARGV[0] || 1_000_000).to_i

Benchmark.bm(22) do |r|
  r.report("#include? - best case") do
    N.times { SET.include?(1) }
  end

  r.report("#include? - worst case") do
    N.times { SET.include?(100) }
  end

  r.report("#include? - avg. case") do
    N.times { SET.include?(50) }
  end

  r.report("#cover? - best case") do
    N.times { SET.cover?(1) }
  end

  r.report("#cover? - worst case") do
    N.times { SET.cover?(100) }
  end

  r.report("#cover? - avg. case") do
    N.times { SET.cover?(50) }
  end
end