test cases all have protect_from_forgery? set to 'false' in rails/actionview/lib/action_view/test_case.rb method say_no_to_protect_against_forgery!

I just noticed that this line in Rails Action view makes it so that CSRF tokens are disabled (forgery protection) in tests by default.

https://github.com/rails/rails/blob/master/actionview/lib/action_view/test_case.rb#L111

I presume from this code that this is intentional. Is there a recommended strategy for enable CSRF tokens in my test suite? Or is this a practice that is not recommended?

Thanks.

Jason