module RuboCop::Cop::RSpec::EmptyLineSeparation

def last_child?(node)
  return true unless node.parent&.begin_type?
  node.equal?(node.parent.children.last)
end

def missing_separating_line(node)
  line = final_end_location(node).line
  line += 1 while comment_line?(processed_source[line])
  return if processed_source[line].blank?
  yield offending_loc(line)
end

def missing_separating_line_offense(node)
  return if last_child?(node)
  missing_separating_line(node) do |location|
    msg = yield(node.method_name)
    add_offense(location, message: msg) do |corrector|
      corrector.insert_after(location.end, "\n")
    end
  end
end

def offending_loc(last_line)
  offending_line = processed_source[last_line - 1]
  content_length = offending_line.lstrip.length
  start          = offending_line.length - content_length
  source_range(processed_source.buffer,
               last_line, start, content_length)
end