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Posted by Oleg on December 16th, 2009
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Remember Rcov?
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
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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