RCov Tips

1. How to turn off rcov for specific sections in a file:
Start and end with :

#:nocov:

in your file.

2. How to exclude files from rcov:

In spec directory, edit rcov.opts

 append our path of files to –exclude option. Eg: –exclude “helpers/*,app/sweepers/*”.

Reference

http://psixty.wordpress.com/2010/06/22/how-to-exclude-files-in-rcova-code-coverage-tool-in-ruby/

How to uninstall all gems in global rvm ?

rvm use @global 
rvm gemset empty global

If you want to remove all gems for a particular gemset, replace global with your-gemset-name

gem "rake" is not installed

Problem uninstalling rake? Run the following command:
rvm use @global && gem uninstall rake

How to disable acts_as_audited 2.0 rails plugin in Rails 3.1 and RSpec

Create disable.rb under spec/support folder and call disable_auditing method on your modes. For example:
Account.disable_auditing
Cart.disable_auditing

Using Reek gem in Rails 3.1 projects

1. gem install reek
2. reek lib/*.rb > myreport.txt

You can run reports for app/models/*.rb, app/controllers/*.rb and app/helpers/*.rb

rcov for Rails 3.1

1. rake spec:rcov
2. open coverage/index.html
3. add coverage/* to your .gitignore file.
4. $ rake -T rcov
rake spec:clobber_rcov  # Remove rcov products for rcov
rake spec:rcov          # Run all specs in spec directory with RCov (excluding plugin specs)

Rails Best Practices

1. gem install rails_best_practices
2. gem install ripper
3. From the root of the project run: 
rails_best_practices -f html .
to generate the report.

You need to specify gem names as Strings. Use 'gem "test"' instead.

This can happen due to syntax error in your Gemfile. Fix the sytax error by manually checking this file. If that does not work delete the lines that you added to result in this problem and copy / paste from a working copy of a Gemfile.

syntax error, unexpected keyword_end

This happens because you have : <%= end %> instead of <% end %>

`test': unknown command 't' (ArgumentError)

To write tests using Test::Unit new syntax :

test "truth" do
  assert true
end

1. gem install test-unit
2. Code:

require 'rubygems'
gem 'test-unit'
require 'test/unit'


class ExampleTest < Test::Unit::TestCase
  def test_truth
    assert true
  end
 
  test "truth" do
    assert true
  end
end


3. Run: ruby example_test This will work on ruby-1.9.3-p0.

Reference:  Test::Unit and MiniTest with different Ruby versions