Enhance the test "some string" method to support creating 'pending' tests.

If no block is provided to the test method, a default test will be generated which simply flunks.  This makes it easy for you to generate a list of what you intend to do, then flesh it out with actual tests.

activesupport/lib/active_support/test_case.rb

@@ -12,7 +12,13 @@ def self.test(name, &block)
       test_name = "test_#{name.gsub(/\s+/,'_')}".to_sym
       defined = instance_method(test_name) rescue false
       raise "#{test_name} is already defined in #{self}" if defined
-      define_method(test_name, &block)
+      if block_given?
+        define_method(test_name, &block)
+      else
+        define_method(test_name) do
+          flunk "No implementation provided for #{name}"
+        end
+      end
     end
   end
 end