#####################
# Ruby Version: 2.1.6
#####################

# gem 'activesupport', '=3.2.22'
# gem 'activesupport', '=4.2.5'
# gem 'activesupport', '=7.2.1'

require 'active_support/all'
require 'benchmark/ips'

Benchmark.ips do |x|
  x.config(time: 5, warmup: 2)

  @hash_with_indifferent_access = ActiveSupport::HashWithIndifferentAccess.new(a: 1)
  @hash                         = Hash[a: 2]

  ######
  # Hash
  ######

  x.report("Common Hash#fetch access") do
    @hash.fetch :a
  end

  x.report("Common Hash#[] access") do
    @hash[:a]
  end

  ###########################
  # HashWithIndifferentAccess
  ###########################

  x.report("HashWithIndifferentAccess#fetch Symbol") do
    @hash_with_indifferent_access.fetch :a
  end

  x.report("HashWithIndifferentAccess#fetch String") do
    @hash_with_indifferent_access.fetch 'a'
  end

  x.report("HashWithIndifferentAccess #[] Symbol") do
    @hash_with_indifferent_access[:a]
  end

  x.report("HashWithIndifferentAccess #[] String") do
    @hash_with_indifferent_access['a']
  end

  #########################################
  # Hash#with_indifferent_access convertion
  #########################################

  x.report("Hash#with_indifferent_access #fetch Symbol") do
    @hash.with_indifferent_access.fetch :a
  end

  x.report("Hash#with_indifferent_access #fetch String") do
    @hash.with_indifferent_access.fetch 'a'
  end

  x.report("Hash#with_indifferent_access #[] Symbol") do
    @hash.with_indifferent_access[:a]
  end

  x.report("Hash#with_indifferent_access #[] String") do
    @hash.with_indifferent_access['a']
  end

  # Compare the iterations per second of the various reports!
  x.compare!
end