Problem: You want to write to the Rails test log from within a TestCase.

Solution: In Rails 3:

::Rails.logger.warn 'foobar'

Rails 2:

RAILS_DEFAULT_LOGGER.warn 'foobar'

Useful For: Viewing debugging output and standard log output (eg. AREL) in the same file.

More Information:

• http://jasonseifer.com/2009/08/10/using-the-rails-logger-outside-of-models-and-controllers
• http://mikenaberezny.com/2007/02/24/rails-logging-tips/