# File test/test_properties.rb, line 88
    def test_params
      params = @properties.params('foo', 'bar')
      assert(! (params.has_key? 'foo'))
      assert(! (params.has_key? 'bar'))
      assert_nil(params['foo'])
      assert_nil(params['bar'])
      assert_equal(0, params.modified_count)
    end