Rails: How to test code in the lib/ directory?

Question

I have a model which gets its data from a parser object. I'm thinking that the parser class should live in the lib/ directory (although I could be persuaded that it should live soewhere else). The question is: Where should my unit tests for the parser class be? And how do I ensure that they are run each time I run rake test?

Answer 1

In the Rails application I'm working on, I decided to just place the tests in the test\unit directory. I will also nest them by module/directory as well, for example:

lib/a.rb   => test/unit/a_test.rb lib/b/c.rb => test/unit/b/c_test.rb 

For me, this was the path of last resistance, as these tests ran without having to make any other changes.