# to run these tests: # nix-instantiate --eval --strict . -A tests.kernel-config # # make sure to use NON EXISTING kernel settings else they may conflict with # common-config.nix { lib, pkgs }: with lib; with kernel; let lts_kernel = pkgs.linuxPackages.kernel; # to see the result once the module transformed the lose structured config getConfig = structuredConfig: (lts_kernel.override { structuredExtraConfig = structuredConfig; }).configfile.structuredConfig; mandatoryVsOptionalConfig = mkMerge [ { NIXOS_FAKE_USB_DEBUG = yes;} { NIXOS_FAKE_USB_DEBUG = option yes; } ]; freeformConfig = mkMerge [ { NIXOS_FAKE_MMC_BLOCK_MINORS = freeform "32"; } # same as default, won't trigger any error { NIXOS_FAKE_MMC_BLOCK_MINORS = freeform "64"; } # will trigger an error but the message is not great: ]; yesWinsOverNoConfig = mkMerge [ # default for "NIXOS_TEST_BOOLEAN" is no { "NIXOS_TEST_BOOLEAN" = yes; } # yes wins over no by default { "NIXOS_TEST_BOOLEAN" = no; } ]; optionalNoWins = mkMerge [ { NIXOS_FAKE_USB_DEBUG = option yes;} { NIXOS_FAKE_USB_DEBUG = yes;} ]; allOptionalRemainOptional = mkMerge [ { NIXOS_FAKE_USB_DEBUG = option yes;} { NIXOS_FAKE_USB_DEBUG = option yes;} ]; in runTests { testEasy = { expr = (getConfig { NIXOS_FAKE_USB_DEBUG = yes;}).NIXOS_FAKE_USB_DEBUG; expected = { tristate = "y"; optional = false; freeform = null; }; }; # mandatory flag should win over optional testMandatoryCheck = { expr = (getConfig mandatoryVsOptionalConfig).NIXOS_FAKE_USB_DEBUG.optional; expected = false; }; testYesWinsOverNo = { expr = (getConfig yesWinsOverNoConfig)."NIXOS_TEST_BOOLEAN".tristate; expected = "y"; }; testAllOptionalRemainOptional = { expr = (getConfig allOptionalRemainOptional)."NIXOS_FAKE_USB_DEBUG".optional; expected = true; }; # check that freeform options are unique # Should trigger # > The option `settings.NIXOS_FAKE_MMC_BLOCK_MINORS.freeform' has conflicting definitions, in `<unknown-file>' and `<unknown-file>' testTreeform = let res = builtins.tryEval ( (getConfig freeformConfig).NIXOS_FAKE_MMC_BLOCK_MINORS.freeform); in { expr = res.success; expected = false; }; }