How to fix undefined method for sign_in on request specs

[lea927]

If you're having the following error

Simply add config.include Rails.application.routes.url_helpers, type: :request on your rails helper file

Resources:

https://github.com/heartcombo/devise/wiki/How-To:-sign-in-and-out-a-user-in-Request-type-specs-(specs-tagged-with-type:-:request)#1-simple-approach
https://dev.to/kevinluo201/introduce-rspec-request-spec-4pbl