Archive for the 'Rails' Category

Oct '06
Profiling Rails Unittests
by Frank Spychalski filed under Rails, Ruby

Thanks to a hint by Chris Mear on the Ruby on Rails Mailinglist I had an idea how to add profiling my unittests. It’s a simple 3 step process and adds just 5 lines of code to your unittests:

Step 1:

require 'profiler'

Step 2:

 def setup
  # ...
  # your normal setup code
  # ...

Step 2:

 def teardown
  f=File::new("#{RAILS_ROOT}/log/profiler.#{name() + ' ' +
    '%Y-%m-%d %H:%M')}.log", 'w')
  # ...
  # your normal teardown code
  # ...

As you probably guessed from the code, this will log the profiling results into a file for each test. But beware: this is VERY SLOW! The tests I was profiling took 9s without profiling and 1267s with profiling… But slow profiling still beats no profiling :-)

If you are looking for memory profiling, there is a nice article by Scott Laird on Memory leak profiling with Rails.

This tutorial shows how to use distributed ruby to connect a rails application with another ruby service not running inside Rails. Read the rest of this entry »

Mar '06
Useful test for Rails functional tests
by Frank Spychalski filed under Rails, Ruby, Work

Evil folks and stupid users expose webapplications to requests no sane developer usually expects. To find methods that cannot cope with unexpected input I added a simple test to my current Ruby on Rails project. The test calls all public actions via all http actions and uses some dummy parameters. There are no assertions in this test, because I don’t know if an action should succeed or redirect. The only thing checked with this test is that the action does not fail.

Technorati Tags: , ,