From: Michael Fellinger <m.fellinger@...>
Date: 2007-07-23T12:19:36+09:00
Subject: Re: "require" in unit test not returning true or false

# Should check my code before posting, sorry for wasting your bandwidth :)

require 'rake'

task :check_dependencies do
  { 'mechanize' => "WWW::Mechanize",
    'hpricot'   => "Hpricot"
  }.each do |dep, klass|
    begin
      require dep
      abort("#{dep} was loaded but couldn't find '#{klass}'") unless
eval("defined?(#{klass})")
    rescue LoadError
      abort("Couldn't load '#{dep}'")
    end
  end
end

Rake::Task[:check_dependencies].execute