Blog | The Working Group » rake task http://blog.twg.ca Thu, 05 Aug 2010 15:21:25 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 Remember Rcov? http://blog.twg.ca/2009/12/remember-rcov/ http://blog.twg.ca/2009/12/remember-rcov/#comments Wed, 16 Dec 2009 21:31:21 +0000 Oleg http://blog.twg.ca/?p=429 Rcov helps to identify code that is not being being hit by your tests (or maybe some functions left behind after refactoring). It’s very easy to get it running as well:

$ sudo gem install rcov

Plug this rake task into /lib/tasks/rcov.rake

require 'rcov/rcovtask'

namespace :rcov do
  desc 'Measures test coverage using rcov'
  Rcov::RcovTask.new(:test) do |rcov|
    rcov.pattern    = %w(test/unit/**/*_test.rb test/functional/**/*_test.rb test/integration/**/*_test.rb)
    rcov.output_dir = 'rcov'
    rcov.verbose    = true
    rcov.rcov_opts << '--exclude "gems/*"'
    rcov.rcov_opts << '--rails'
  end
end

And finally run it:

$ rake rcov:test

It’s so easy you have no excuse not to have it.

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