a48047a755
This is actually very useful. Allows you to test switch-to-configuration nesting.children is still currently still broken as it will throw away 'too much' of the config, including the modules that make nixos tests work in the first place. But that's something for another time.
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at http://nixos.org/nixos and in the manual in doc/manual.