Little help with autotest required please

[Zouplaz]

Hello, I've pulled my hairs hours long but I had no success with
Autotest hooks...

The test file is in
test/scraping/something_test.rb
The library file is in
lib/scaping/something.rb

1) Created a .autotest file in my project root
2) Added the simplest hook I could to narrow down the problem

Autotest.add_hook :initialize do |at|
at.add_mapping(/lib\/scraping\/something.rb/) do |f, _|
at.files_matching /something_test.rb/
end
end


Still seeing dunno!

What's wrong ?