Why isn't my test/controllers/static_pages_controller_test.rb folder showing up after I generate a controller using rails generate?

I'm working on Michael Hartl's RoR Tutorial Chapter 3.2.1 and I'm generating a Static Pages controller:

    rails generate controller StaticPages home help

Screenshot of my code running

and there is no test/controllers/static_pages_controller_test.rb folder being generated like in the book

Book generated code

and my folder is completely empty and cannot run any tests.