From: Brian Adkins <lojicdotcom@...>
Date: 2007-10-12T15:50:06+09:00
Subject: Re: Child < Parent < Test::Unit::TestCase

On Oct 11, 11:49 pm, George <george.og...@gmail.com> wrote:
> On 10/12/07, Brian Adkins <lojicdot...@gmail.com> wrote:
> > Is there a way to instruct Test::Unit to not attempt to run tests in
> > intermediate classes in the hierarchy?
>
> Hi Brian,
>
> I don't know if it's advisable or not, but one way is to undefine
> `default_test'.
>
>   require 'test/unit'
>
>   class AbstractTestCase < Test::Unit::TestCase
>     undef_method :default_test
>   end

Thanks! I just looked through testcase.rb, and your suggestion seems
to be exactly what I was asking for. I'm satisfied with the mixin
approach for my current scenario, but it's nice to know I have an
option for inheritance if the need arises.

Another option is to just hide the class from ObjectSpace :)  I did
some experimenting for the heck of it and came up with the following.
It's just a hack for fun, but can anyone come up with a better way of
passing in the class to be hidden to the redefined each_object method
besides the ugly $cloaked global variable? The fact that the
definition is being evaluated in the scope of the metaclass for
ObjectSpace kind of complicates things.

require "test/unit"

class Module
  $cloaked = []
  def hide_class
    $cloaked << self
  end
end

class << ObjectSpace
  alias orig_each_object each_object
  def each_object(klass)
    ObjectSpace.orig_each_object(klass) do |obj|
      yield obj if !$cloaked.include?(obj)
    end
  end
end

class ParentTest < Test::Unit::TestCase
  hide_class

  def setup
    puts 'setup called'
  end

  def teardown
    puts 'teardown called'
  end
end