From: Phlip <phlip2005@...>
Date: 2008-09-08T09:33:51+09:00
Subject: [ANN] assert_latest now takes "polygamous" arguments

Rubies:

Those of you who dig ActiveRecord need this:

http://www.oreillynet.com/ruby/blog/2008/09/polygamous_assert_latest.html

It shows how to write tests like this:

     t, fz = assert_latest T2, Foo do
               T2.create
               2.times{ Foo.create }
             end

     assert do
       t.id > 0     and
       fz[0].id > 0 and
       fz[1].id > fz[0].id
     end

The inner lines - T2.create etc. - represent your production code in action. You 
put the assert_latest around that code, and it will detect any new records of 
the given type. You can then assert the records have the fields you expect.

This is useful for any kind of testing, but super-useful for integration tests, 
to detect large batches of new records.

Get assert_latest with the assert_efficient_sql gem.

-- 
   Phlip