The default behavior in Rails now is to use the asset pipeline. The existing conditional in the railtie is !!(::Rails.configuration.assets.enabled). This actually evaluates to false for nil -- which essentially overrides the default behavior to use the legacy helpers.
nil / left blank for assets.enabled should use the asset pipeline. The engine railtie conditional is only run for Rails 3.2 + so we should be able to safely assume asset pipeline is the default.
Coverage remained the same when pulling 33345d171ee2d86e5d632e31716d2ea339959497 on spra85:rails-asset-pipeline-default into a843b9f6f14e7965d60615d1bfb51c962f053da3 on igor-alexandrov:master.
The default behavior in Rails now is to use the asset pipeline. The existing conditional in the railtie is
!!(::Rails.configuration.assets.enabled)
. This actually evaluates to false for nil -- which essentially overrides the default behavior to use the legacy helpers.nil / left blank for assets.enabled should use the asset pipeline. The engine railtie conditional is only run for Rails 3.2 + so we should be able to safely assume asset pipeline is the default.