class RuboCop::Cop::RSpec::EmptyHook

after(:all) { cleanup_feed }
end
create_feed
before(:all) do
end
cleanup_users
after do
before { create_users }
# good
after(:all) { }
end
before(:all) do
after do; end
before {}
# bad
@example
Checks for empty before and after hooks.

def on_block(node) 

def on_block(node)
  empty_hook?(node) do |hook|
    add_offense(hook) do |corrector|
      range = range_with_surrounding_space(
        range: node.loc.expression,
        side: :left
      )
      corrector.remove(range)
    end
  end
end