class RuboCop::Cop::RSpec::DescribeClass

end
describe TestedClass do
# good
end
describe ‘Do something’ do
# bad
@example
class or module.
Check that the first argument to the top level describe is the tested

def on_top_level_describe(_node, args) 

def on_top_level_describe(_node, args)
  return if args.first && args.first.type == :const
  add_offense(args.first, :expression, MESSAGE)
end