Question

I’d like to test class and gem loading. Have a look at the following stupid test case:

require 'rubygems'
require 'shoulda'

class SimpleTest < Test::Unit::TestCase

    context 'This test' do

       should 'first load something' do
           require 'bundler'

           assert Object.const_defined? :Bundler
       end

       should 'second have it reset again' do
           assert !Object.const_defined?(:Bundler)
       end

       teardown do
         # This works, but is tedious and unclean
         #Object.send :remove_const, :Bundler rescue nil

         # Instead I want something like this ;)
         magic_reset
       end

    end

end

Answer 1

How about creating a subclass of Test::Unit::TestCase which runs the test method in a forked process?

class ForkingTestCase < Test::Unit::TestCase
  def run(...)
    fork do
      super.run(...)

      # somehow communicate the result back to the parent process
      # this is the hard part
    end
  end  
end

If this can be implemented, it should then just be a matter of changing the base class of your test case.