October 2008
Beginner to intermediate
224 pages
5h 34m
English
Content preview from Rails: Up and Running, 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Test Coverage
By using a plug-in called RCov, you can always tell exactly what lines of code within your
application are covered. To use it, you’ll have to make a few
modifications to the project. First, you’ll need to install the
gem, and the Rails plug-in for coverage. As usual, omit
the sudo on the Windows platform:
$ sudo gem install rcov Password: Updating metadata for 104 gems from http://gems.rubyforge.org/ ..................................................................................... complete Building native extensions. This could take a while... Successfully installed rcov-0.8.1.2.0 1 gem installed Installing ri documentation for rcov-0.8.1.2.0... Installing RDoc documentation for rcov-0.8.1.2.0... lance-carlsons-macbook-pro:photos lancelotcarlson$ script/plugin install http://svn.codahale.com/rails_rcov + ./MIT-LICENSE + ./README + ./tasks/rails_rcov.rake
By default, this tool will measure coverage for all types of tests
independently. You will also find it useful to measure the total coverage
of all of your tests. To do so, you’ll need another rake task. Add the file called
lib/tasks/coverage.rake to the project, and make it
look like this:
require 'rcov/rcovtask' namespace :test do desc 'Aggregate code coverage for unit, functional and integration tests' Rcov::RcovTask.new(:coverage => 'db:test:prepare') do |t| t.libs << "test" t.test_files = FileList["test/unit/*_test.rb","test/functional/*_test.rb", "test/integration/*_test.rb"] t.output_dir = "coverage" t.verbose ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.