form.dup-test.rb

#!/usr/bin/env ruby

require 'test/unit'

module Hi
  def say_hi
    'hi'
  end
end

class Form
  def self.say_bye
    'bye'
  end
end

class TestForm < Test::Unit::TestCase

  @@form  = Form
  @@formd = Form.dup
  Form.send :extend, Hi
  
  def test_form_class_has_method_say_hi
    assert_equal 'hi', Form.say_hi
  end
  
  def test_form_var_has_method_say_hi
    assert_equal 'hi', @@form.say_hi
  end
  
  def test_formd_var_does_not_have_method_say_hi
    assert_raises(NoMethodError) { @@formd.say_hi }
  end
  
  def test_form_has_method_say_bye
    assert_equal 'bye', @@form.say_bye
  end
  
  def test_formd_has_method_say_bye
    assert_equal 'bye', @@formd.say_bye
  end
end