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$LOAD_PATH.unshift "./lib"
require 'rspec/mocks'
require "rspec/mocks/standalone"
=begin
This benchmark script is for troubleshooting the performance of
#264. To use it, you have to edit the code in #264 a bit:
wrap the call in `MethodDouble#initialize` to `find_original_method`
in a conditional like `if $find_original`.
That allows the code below to compare the perf of stubbing a method
with the original method being found vs. not.
=end
require 'benchmark'
n = 10_000
Foo = Class.new(Object) do
n.times do |i|
define_method "meth_#{i}" do
end
end
end
Benchmark.bmbm do |bm|
puts "#{n} times - ruby #{RUBY_VERSION}"
perform_report = lambda do |label, find_original, &create_object|
dbl = create_object.call
$find_original = find_original
bm.report(label) do
n.times do |i|
dbl.stub("meth_#{i}")
end
end
RSpec::Mocks.space.reset_all
end
perform_report.call("Find original - partial mock", true) { Foo.new }
perform_report.call("Don't find original - partial mock", false) { Foo.new }
perform_report.call("Find original - test double", true) { double }
perform_report.call("Don't find original - test double", false) { double }
end
=begin
10000 times - ruby 1.9.3
Rehearsal ----------------------------------------------------------------------
Don't find original - partial mock 1.050000 0.020000 1.070000 ( 1.068561)
Don't find original - test double 1.190000 0.010000 1.200000 ( 1.199815)
Find original - partial mock 1.270000 0.010000 1.280000 ( 1.282944)
Find original - test double 1.320000 0.020000 1.340000 ( 1.336136)
------------------------------------------------------------- total: 4.890000sec
user system total real
Don't find original - partial mock 0.990000 0.000000 0.990000 ( 1.000959)
Don't find original - test double 0.930000 0.010000 0.940000 ( 0.931871)
Find original - partial mock 1.040000 0.000000 1.040000 ( 1.046354)
Find original - test double 0.980000 0.010000 0.990000 ( 0.983577)
=end
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