What the stub?

library_foo.rb

module Foo
  def self.bar
    fail 'biz'
  end
end

recipes_default.rb

Foo.bar

include_recipe 'cookbook::baz'

spec_unit_recipes_default_spec.rb

require_relative '../../../libraries/foo'

RSpec.describe 'cookbook::default' do
  before :example do
    allow(Foo).to receive(:bar).and_return true
  end
  
  subject { chef_run }
  
  it { is_expected.to include_recipe 'cookbook::baz' }
end

The stub of Foo.bar is not being respected 😢