# File lib/test/unit/testcase.rb, line 234
        def test(test_description, &block)
          normalized_description = test_description.gsub(/[^a-zA-Z\d_]+/, '_')
          method_name = "test_#{normalized_description}".to_sym
          define_method(method_name, &block)
          description(test_description, method_name)
        end