module RuboCop::Minitest::AssertOffense

def parse_source!(source, file = nil)
  if file.respond_to?(:write)
    file.write(source)
    file.rewind
    file = file.path
  end
  processed_source = RuboCop::ProcessedSource.new(source, ruby_version, file, parser_engine: parser_engine)
  processed_source.config = configuration
  processed_source.registry = registry
  processed_source
end