From: Massimiliano Mirra - bard <mmirra@...>
Date: 2004-08-28T07:45:33+09:00
Subject: Re: Literate testing?

Mauricio Fern叩ndez <batsman.geo@yahoo.com> writes:

> I believe you can make it look a bit better by using Kernel#caller
> and Module#method_added; 

I confess I have absolutely no idea how. :-)

> it would also be nice to generate test
> cases for Test::Unit (for instance by defining the test_* methods in
> MyClass::LiterateTests so that they can be included in a test suite
> later).

Nice.  I tried, and the last call shows test_* methods get defined,
but Test::Unit says `No tests were specified.'.


  require "test/unit"
  
  module Literate
    def method_missing(id, *args, &block)
      if id.to_s =~ /example_/
        name = Regexp.last_match.post_match
        self::LiterateTests.send(:define_method, "test_#{name}".intern, &block)
      else
        super(id, *args, &block)
      end
    end
  end
  
  class Calculator
    extend Literate
  
    module LiterateTests
    end
  
    example_add do
      assert @calc.add(2, 8) == 10
    end
  
    def add(a, b)
      return a + b
    end
  
    example_div do 
      assert @calc.div(10, 2) == 5
    end
  
    def div(a, b)
      return a / b + 1
    end
  end
  
  class TestCalculator < Test::Unit::TestCase
    include Calculator::LiterateTests
  
    def setup
      @calc = Calculator.new
    end
  end
  
  p TestCalculator.public_instance_methods