redmine/config/environments/test.rb

# Settings specified here will take precedence over those in config/environment.rb

# The test environment is used exclusively to run your application's
# test suite.  You never need to work with it otherwise.  Remember that
# your test database is "scratch space" for the test suite and is wiped
# and recreated between test runs.  Don't rely on the data there!
config.cache_classes = true

# Log error messages when you accidentally call methods on nil.
config.whiny_nils    = true

# Show full error reports and disable caching
config.action_controller.consider_all_requests_local = true
config.action_controller.perform_caching             = false

config.action_mailer.perform_deliveries = true
config.action_mailer.delivery_method = :test

config.action_controller.session = { 
  :session_key => "_test_session",
  :secret => "some secret phrase for the tests."
}