I created a new Rails 8 application. I installed RSpec for testing.
$ rails g authentication
invoke erb
create app/views/passwords/new.html.erb
create app/views/passwords/edit.html.erb
create app/views/sessions/new.html.erb
create app/models/session.rb
create app/models/user.rb
create app/models/current.rb
create app/controllers/sessions_controller.rb
create app/controllers/concerns/authentication.rb
create app/controllers/passwords_controller.rb
create app/channels/application_cable/connection.rb
create app/mailers/passwords_mailer.rb
create app/views/passwords_mailer/reset.html.erb
create app/views/passwords_mailer/reset.text.erb
create test/mailers/previews/passwords_mailer_preview.rb
insert app/controllers/application_controller.rb
route resources :passwords, param: :token
route resource :session
gsub Gemfile
bundle install --quiet
generate migration CreateUsers email_address:string!:uniq password_digest:string! --force
rails generate migration CreateUsers email_address:string!:uniq password_digest:string! --force
invoke active_record
create db/migrate/20250304151808_create_users.rb
generate migration CreateSessions user:references ip_address:string user_agent:string --force
rails generate migration CreateSessions user:references ip_address:string user_agent:string --force
invoke active_record
create db/migrate/20250304151809_create_sessions.rb
error rspec [not found]
How do I fix error rspec [not found] when I generate authentication?
RSpec-Rails latest release is 7.1.1 which is still on the Rails 7 compatibility branch and thus doesn't have a generator for a feature introduced in Rails 8.
There is a authentication generator in the master branch but I would expect it to be released with RSpec-Rails 8.x.
If this feature is really important to you can point your gemfile to the master on GitHub.
group :development, :test do
gem 'rspec-rails', git: 'https://github.com/rspec/rspec-rails'
end
Otherwise you can just manually run the model / request / system generators to generate specs at each respective level.