<p>Just as an example, if I have a <code>Book</code> model and a <code>BooksController</code>, autotest, part of the ZenTest suite will pick up the association between the two and load <code>test/unit/book_test.rb</code> and <code>test/functional/books_controller_test.rb</code> into the test suite. On the other hand, if I have a <code>Story</code> model and a <code>StoriesController</code>, autotest refuse to "notice" the <code>test/functional/stories_controller_test.rb</code></p>

I think you want to use the decimal data type, and use the appropriate overload for
ToString()
.
```
```
CultureInfo current  = CultureInfo.CurrentCulture;
decimal myMoney = 99.99m;

//formats as money in current culture, like $99.99
string formattedMoney = myMoney.ToString("C", current);
```
```