module Spec::Example::ExampleGroupFactory::ClassMethods

def default(example_group_class)
  Spec.__send__ :remove_const, :ExampleGroup if Spec.const_defined?(:ExampleGroup)
  Spec.const_set(:ExampleGroup, example_group_class)
  old = @example_group_types
  @example_group_types = Hash.new(example_group_class)
  @example_group_types.merge!(old) if old
end