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Diffstat (limited to 'guides/source/upgrading_ruby_on_rails.md')
| -rw-r--r-- | guides/source/upgrading_ruby_on_rails.md | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/guides/source/upgrading_ruby_on_rails.md b/guides/source/upgrading_ruby_on_rails.md index 88b996ecb1..120dea51e9 100644 --- a/guides/source/upgrading_ruby_on_rails.md +++ b/guides/source/upgrading_ruby_on_rails.md @@ -84,6 +84,24 @@ deprecation warning by adding following configuration to your See [#14488](https://github.com/rails/rails/pull/14488) and [#16537](https://github.com/rails/rails/pull/16537) for more details. +### Ordering of test cases + +In Rails 5.0, test cases will be executed in random order by default. In +anticipation of this change, Rails 4.2 introduced a new configuration option +`active_support.test_order` for explicitly specifying the test ordering. This +allows you to either locking down the current behavior by setting the option to +`:sorted`, or opt into the future behavior by setting the option to `:random`. + +If you do not specify a value for this option, a deprecation warning will be +emitted. To avoid this, add the following line to your test environment: + +```ruby +# config/environments/test.rb +Rails.application.configure do + config.active_support.test_order = :sorted # or `:random` if you prefer +end +``` + ### Serialized attributes When using a custom coder (e.g. `serialize :metadata, JSON`), |