class RSpec::Core::Metadata::ExampleGroupHash

def full_description
  description          = metadata[:description]
  parent_example_group = metadata[:parent_example_group]
  return description unless parent_example_group
  parent_description   = parent_example_group[:full_description]
  separator = description_separator(parent_example_group[:description_args].last,
                                    metadata[:description_args].first)
  parent_description + separator + description
end