tjh.dev
1# to run these tests:
2# nix-instantiate --eval --strict . -A tests.kernel-config
3#
4# make sure to use NON EXISTING kernel settings else they may conflict with
5# common-config.nix
6{ lib, pkgs }:
7
8with lib;
9with kernel;
10
11let
12 lts_kernel = pkgs.linuxPackages.kernel;
13
14 # to see the result once the module transformed the lose structured config
15 getConfig = structuredConfig:
16 (lts_kernel.override {
17 structuredExtraConfig = structuredConfig;
18 }).configfile.structuredConfig;
19
20 mandatoryVsOptionalConfig = mkMerge [
21 { NIXOS_FAKE_USB_DEBUG = yes;}
22 { NIXOS_FAKE_USB_DEBUG = option yes; }
23 ];
24
25 freeformConfig = mkMerge [
26 { NIXOS_FAKE_MMC_BLOCK_MINORS = freeform "32"; } # same as default, won't trigger any error
27 { NIXOS_FAKE_MMC_BLOCK_MINORS = freeform "64"; } # will trigger an error but the message is not great:
28 ];
29
30 mkDefaultWorksConfig = mkMerge [
31 { "NIXOS_TEST_BOOLEAN" = yes; }
32 { "NIXOS_TEST_BOOLEAN" = lib.mkDefault no; }
33 ];
34
35 allOptionalRemainOptional = mkMerge [
36 { NIXOS_FAKE_USB_DEBUG = option yes;}
37 { NIXOS_FAKE_USB_DEBUG = option yes;}
38 ];
39
40in
41runTests {
42 testEasy = {
43 expr = (getConfig { NIXOS_FAKE_USB_DEBUG = yes;}).NIXOS_FAKE_USB_DEBUG;
44 expected = { tristate = "y"; optional = false; freeform = null; };
45 };
46
47 # mandatory flag should win over optional
48 testMandatoryCheck = {
49 expr = (getConfig mandatoryVsOptionalConfig).NIXOS_FAKE_USB_DEBUG.optional;
50 expected = false;
51 };
52
53 testYesWinsOverNo = {
54 expr = (getConfig mkDefaultWorksConfig)."NIXOS_TEST_BOOLEAN".tristate;
55 expected = "y";
56 };
57
58 testAllOptionalRemainOptional = {
59 expr = (getConfig allOptionalRemainOptional)."NIXOS_FAKE_USB_DEBUG".optional;
60 expected = true;
61 };
62
63 # check that freeform options are unique
64 # Should trigger
65 # > The option `settings.NIXOS_FAKE_MMC_BLOCK_MINORS.freeform' has conflicting definitions, in `<unknown-file>' and `<unknown-file>'
66 testTreeform = let
67 res = builtins.tryEval ( (getConfig freeformConfig).NIXOS_FAKE_MMC_BLOCK_MINORS.freeform);
68 in {
69 expr = res.success;
70 expected = false;
71 };
72
73}