## Managed Open Source blog code
# http://blog.managedopensource.com
# http://blog.managedopensource.com/2008/02/02/ruby-benchmark-options-passing-1.8-to-1.9

## Ruby benchmark code
require 'benchmark'

def ops_delete(ops={})
  a = ops.delete(:a) || 11
  b = ops.delete(:b) || 22
  c = ops.delete(:c) || 33
  d = ops.delete(:d) || 44
end

def ops_merge(ops={})
  ops = {:a => 11, :b => 22, :c => 33, :d => 44}.merge(ops)
  a = ops[:a]
  b = ops[:b]
  c = ops[:c]
  d = ops[:d]
end

def ops_or(ops={})
  a = ops[:a] || 11
  b = ops[:b] || 22
  c = ops[:c] || 33
  d = ops[:d] || 44
end


n = 100000
puts "With no option values passed"
Benchmark.bmbm(7) do |x|
  x.report("delete:") { n.times do ops_delete; end }
  x.report("merge:")  { n.times do ops_merge;  end }
  x.report("or_nil:") { n.times do ops_or;     end }
end

puts
puts "With some option values passed"
Benchmark.bmbm(7) do |x|
  x.report("delete:") { n.times do ops_delete(:a => 5, :c => 2); end }
  x.report("merge:")  { n.times do ops_merge(:a => 5, :c => 2);  end }
  x.report("or_nil:") { n.times do ops_or(:a => 5, :c => 2);     end }
end

puts
puts "With all option values passed"
Benchmark.bmbm(7) do |x|
  x.report("delete:") { n.times do ops_delete(:a => 5, :b => 1, :c => 2, :d => 4); end }
  x.report("merge:")  { n.times do ops_merge(:a => 5, :b => 1, :c => 2, :d => 4);  end }
  x.report("or_nil:") { n.times do ops_or(:a => 5, :b => 1, :c => 2, :d => 4);     end }
end