Is there a way with test::unit Ruby to load gems - ruby

Question

I am trying to use test::unit for testing and the framework I am trying to test requires a particular gem (rhodes)
Can anyone suggest how I can get the gem loaded when I run my tests
Update :: Error Message
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- rho (LoadError)
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
from ../../app/Settings/controller.rb:1
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
from ../test_helper.rb:4
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
from test_settings.rb:4
My unit test uses require to include test_helper.rb which contains following
$: << "../../app"
require 'rubygems'
require 'rhodes'
require 'test/unit'
require 'Settings/controller'
Settings/controller lives in app and contains
require 'rho'
require 'rho/rhocontroller'
require 'rho/rhoerror'
require 'helpers/browser_helper'
class SettingsController < Rho::RhoController
include BrowserHelper
def index
#msg = #params['msg']
render
end
def login
#msg = #params['msg']
render :action => :login, :back => '/app'
end
def login_callback
errCode = #params['error_code'].to_i
if errCode == 0
# run sync if we were successful
WebView.navigate Rho::RhoConfig.options_path
SyncEngine.dosync
else
if errCode == Rho::RhoError::ERR_CUSTOMSYNCSERVER
#msg = #params['error_message']
end
if !#msg || #msg.length == 0
#msg = Rho::RhoError.new(errCode).message
end
WebView.navigate ( url_for :action => :login, :query => {:msg => #msg} )
end
end
def do_login
if #params['login'] and #params['password']
begin
SyncEngine.login(#params['login'], #params['password'], (url_for :action => :login_callback) )
render :action => :wait
rescue Rho::RhoError => e
#msg = e.message
render :action => :login
end
else
#msg = Rho::RhoError.err_message(Rho::RhoError::ERR_UNATHORIZED) unless #msg && #msg.length > 0
render :action => :login
end
end
def logout
SyncEngine.logout
#msg = "You have been logged out."
render :action => :login
end
def reset
render :action => :reset
end
def do_reset
Rhom::Rhom.database_full_reset
SyncEngine.dosync
#msg = "Database has been reset."
redirect :action => :index, :query => {:msg => #msg}
end
def do_sync
SyncEngine.dosync
#msg = "Sync has been triggered."
redirect :action => :index, :query => {:msg => #msg}
end
end

Answer 1

Edit 2: after looking at your code, I believe the following should work:
Move the lines from test_helper
require 'rubygems'
require 'rhodes'
to the very top of Settings/controller
Or are you thinking of loading it dynamically during setup/teardown (possibly to avoid conflicting dependencies etc.)?
Edit: I wrote up a quick example of testing a simple wrapper around a Watir class (UI manipulator for IE browser).
require 'rubygems'
require 'watir'
require 'test/unit'
class WatirWrapper
def initialize()
#browser = Watir::IE.new()
end
def method_missing(sym, *args, &block)
#browser.send(sym, *args, &block)
end
end
class WatirWrapperTest < Test::Unit::TestCase
def test_goto
#ww = WatirWrapper.new()
#ww.goto('http://www.google.com/')
assert_equal('http://www.google.com/', #ww.url())
end
end