import ./make-test-python.nix ({ pkgs, ... }: { name = "nixos-rebuild-specialisations"; nodes = { machine = { lib, pkgs, ... }: { imports = [ ../modules/profiles/installation-device.nix ../modules/profiles/base.nix ]; nix.settings = { substituters = lib.mkForce [ ]; hashed-mirrors = null; connect-timeout = 1; }; system.includeBuildDependencies = true; system.extraDependencies = [ # Not part of the initial build apparently? pkgs.grub2 ]; system.switch.enable = true; virtualisation = { cores = 2; memorySize = 4096; }; }; }; testScript = let configFile = pkgs.writeText "configuration.nix" '' { lib, pkgs, ... }: { imports = [ ./hardware-configuration.nix ]; boot.loader.grub = { enable = true; device = "/dev/vda"; forceInstall = true; }; documentation.enable = false; environment.systemPackages = [ (pkgs.writeShellScriptBin "parent" "") ]; specialisation.foo = { inheritParentConfig = true; configuration = { ... }: { environment.systemPackages = [ (pkgs.writeShellScriptBin "foo" "") ]; }; }; specialisation.bar = { inheritParentConfig = true; configuration = { ... }: { environment.systemPackages = [ (pkgs.writeShellScriptBin "bar" "") ]; }; }; } ''; in '' machine.start() machine.succeed("udevadm settle") machine.wait_for_unit("multi-user.target") machine.succeed("nixos-generate-config") machine.copy_from_host( "${configFile}", "/etc/nixos/configuration.nix", ) with subtest("Switch to the base system"): machine.succeed("nixos-rebuild switch") machine.succeed("parent") machine.fail("foo") machine.fail("bar") with subtest("Switch from base system into a specialization"): machine.succeed("nixos-rebuild switch --specialisation foo") machine.succeed("parent") machine.succeed("foo") machine.fail("bar") with subtest("Switch from specialization into another specialization"): machine.succeed("nixos-rebuild switch -c bar") machine.succeed("parent") machine.fail("foo") machine.succeed("bar") with subtest("Switch from specialization into the base system"): machine.succeed("nixos-rebuild switch") machine.succeed("parent") machine.fail("foo") machine.fail("bar") with subtest("Switch into specialization using `nixos-rebuild test`"): machine.succeed("nixos-rebuild test --specialisation foo") machine.succeed("parent") machine.succeed("foo") machine.fail("bar") with subtest("Make sure nonsense command combinations are forbidden"): machine.fail("nixos-rebuild boot --specialisation foo") machine.fail("nixos-rebuild boot -c foo") ''; })