pyrox.dev
1import ./make-test-python.nix ({ pkgs, ... }: {
2 name = "nixos-rebuild-specialisations";
3
4 nodes = {
5 machine = { lib, pkgs, ... }: {
6 imports = [
7 ../modules/profiles/installation-device.nix
8 ../modules/profiles/base.nix
9 ];
10
11 nix.settings = {
12 substituters = lib.mkForce [ ];
13 hashed-mirrors = null;
14 connect-timeout = 1;
15 };
16
17 system.includeBuildDependencies = true;
18
19 system.extraDependencies = [
20 # Not part of the initial build apparently?
21 pkgs.grub2
22 ];
23
24 virtualisation = {
25 cores = 2;
26 memorySize = 4096;
27 };
28 };
29 };
30
31 testScript =
32 let
33 configFile = pkgs.writeText "configuration.nix" ''
34 { lib, pkgs, ... }: {
35 imports = [
36 ./hardware-configuration.nix
37 <nixpkgs/nixos/modules/testing/test-instrumentation.nix>
38 ];
39
40 boot.loader.grub = {
41 enable = true;
42 device = "/dev/vda";
43 forceInstall = true;
44 };
45
46 documentation.enable = false;
47
48 environment.systemPackages = [
49 (pkgs.writeShellScriptBin "parent" "")
50 ];
51
52 specialisation.foo = {
53 inheritParentConfig = true;
54
55 configuration = { ... }: {
56 environment.systemPackages = [
57 (pkgs.writeShellScriptBin "foo" "")
58 ];
59 };
60 };
61
62 specialisation.bar = {
63 inheritParentConfig = true;
64
65 configuration = { ... }: {
66 environment.systemPackages = [
67 (pkgs.writeShellScriptBin "bar" "")
68 ];
69 };
70 };
71 }
72 '';
73
74 in
75 ''
76 machine.start()
77 machine.succeed("udevadm settle")
78 machine.wait_for_unit("multi-user.target")
79
80 machine.succeed("nixos-generate-config")
81 machine.copy_from_host(
82 "${configFile}",
83 "/etc/nixos/configuration.nix",
84 )
85
86 with subtest("Switch to the base system"):
87 machine.succeed("nixos-rebuild switch")
88 machine.succeed("parent")
89 machine.fail("foo")
90 machine.fail("bar")
91
92 with subtest("Switch from base system into a specialization"):
93 machine.succeed("nixos-rebuild switch --specialisation foo")
94 machine.succeed("parent")
95 machine.succeed("foo")
96 machine.fail("bar")
97
98 with subtest("Switch from specialization into another specialization"):
99 machine.succeed("nixos-rebuild switch -c bar")
100 machine.succeed("parent")
101 machine.fail("foo")
102 machine.succeed("bar")
103
104 with subtest("Switch from specialization into the base system"):
105 machine.succeed("nixos-rebuild switch")
106 machine.succeed("parent")
107 machine.fail("foo")
108 machine.fail("bar")
109
110 with subtest("Switch into specialization using `nixos-rebuild test`"):
111 machine.succeed("nixos-rebuild test --specialisation foo")
112 machine.succeed("parent")
113 machine.succeed("foo")
114 machine.fail("bar")
115
116 with subtest("Make sure nonsense command combinations are forbidden"):
117 machine.fail("nixos-rebuild boot --specialisation foo")
118 machine.fail("nixos-rebuild boot -c foo")
119 '';
120})