Forum: Ruby on Rails Disable Rails caching in test environment?

Announcement (2017-05-07): is now read-only since I unfortunately do not have the time to support and maintain the forum any more. Please see and for other Rails- und Ruby-related community platforms.
0c79b63059847ba4277d0d406e7c9afb?d=identicon&s=25 Tony P. (primerano)
on 2010-09-02 15:21
(Received via mailing list)
Is there a way to make Rails.cache.fetch always execute the code block
in the test environment?  (disable caching)

For example in my test console on Rails 3

ruby-1.9.2-rc2 > Rails.cache.fetch('foo') {'bar'}
 => "bar"
ruby-1.9.2-rc2 > Rails.cache.fetch('foo') {'bar44'}
 => "bar"

Caching is on.  Using filestore

ruby-1.9.2-rc2 > Rails.cache
 => #<ActiveSupport::Cache::FileStore

Is there a ActiveSupport::Cache::Store implementation that doesn't
cache?   I'm assuming I'm just missing something trivial since this is
easily disabled for page/action/fragment caching with

config.action_controller.perform_caching = false

I have...
ruby-1.9.2-rc2 >
 => false

What am I missing?  Thanks
0c79b63059847ba4277d0d406e7c9afb?d=identicon&s=25 Tony P. (primerano)
on 2010-09-02 16:57
(Received via mailing list)
2 solutions...

If you want caching on in test mode (good way to test it is doing what
you expect) you can simply clear the cache between tests.

  def setup

Or you can write a cache that doesn't store anything.

put this in lib/active_support/cache/no_store.rb

module ActiveSupport
  module Cache
    class NoStore < Store
      def read_entry(name, options)
        return nil
      def write_entry(name, value, options)
      def delete_entry(name, options)

then add config.cache_store = :no_store to your test.rb file.
Joshua Pinter (Guest)
on 2013-08-09 12:35
(Received via mailing list)
You can also use the following in your environment configuration:

config.cache_store = :null_store


This topic is locked and can not be replied to.