Comparison between Controller and Integration tests for https://github.com/fxn/rails-contributors

Log

guoxiang@guoxiang-GS60-2PC-Ghost rails-contributors (integration) $ time for i in {1..100}; do rake test:controllers; done >> integration.txt

real	2m56.749s
user	2m37.466s
sys	0m15.781s
guoxiang@guoxiang-GS60-2PC-Ghost rails-contributors (integration) $ time for i in {1..100}; do rake test:controllers; done >> controller.txt

real	2m57.044s
user	2m37.664s
sys	0m15.830s

guoxiang@guoxiang-GS60-2PC-Ghost rails-contributors (integration) $ ruby time.rb
Total time for 100 runs of Integration Test: 57.89166599999998
Total time for 100 runs of Controller Test: 57.908929
Average time for 100 runs of Integration Test: 0.5789166599999997
Average time for 100 runs of Controller Test: 0.57908929

No Log

guoxiang@guoxiang-GS60-2PC-Ghost rails-contributors (integration) $ time for i in {1..100}; do rake test:controllers; done >> integration_log.txt

real	3m1.744s
user	2m42.044s
sys	0m16.227s
guoxiang@guoxiang-GS60-2PC-Ghost rails-contributors (integration) $ time for i in {1..100}; do rake test:controllers; done >> controller_log.txt

real	3m1.425s
user	2m41.728s
sys	0m16.214s

guoxiang@guoxiang-GS60-2PC-Ghost rails-contributors (integration) $ ruby time.rb
Total time for 100 runs of Integration Test: 54.335617000000006
Total time for 100 runs of Controller Test: 54.67934200000002
Average time for 100 runs of Integration Test: 0.54335617
Average time for 100 runs of Controller Test: 0.5467934200000002

time.rb

integration = []
File.open('/home/guoxiang/work/rails-contributors/integration.txt', 'r').each_line do |line|
  line.match(/Finished in ([\d.]+)/)
  integration << $1.to_f if $1
end

functional = []
File.open('/home/guoxiang/work/rails-contributors/controller.txt', 'r').each_line do |line|
  line.match(/Finished in ([\d.]+)/)
  functional << $1.to_f if $1
end

integration_sum = integration.inject(:+)
functional_sum = functional.inject(:+)
integration_average = integration.inject(0.0) { |sum, n| sum + n } / integration.size
functional_average = functional.inject(0.0) { |sum, n| sum + n } / functional.size

puts "Total time for 100 runs of Integration Test: #{integration_sum}"
puts "Total time for 100 runs of Controller Test: #{functional_sum}"
puts "Average time for 100 runs of Integration Test: #{integration_average}"
puts "Average time for 100 runs of Controller Test: #{functional_average}"