Files
clan-core/lib/test/default.nix
2025-05-05 21:46:16 +02:00

142 lines
4.6 KiB
Nix

{ lib, clanLib }:
let
inherit (lib)
mkOption
types
;
in
{
#
containerTest = import ./container-test.nix;
baseTest = import ./test-base.nix;
#
flakeModules = clanLib.callLib ./flakeModules.nix { };
minifyModule = ./minify.nix;
sopsModule = ./sops.nix;
# A function that returns an extension to runTest
makeTestClan =
{
nixosTest,
pkgs,
self,
useContainers ? true,
# Displayed for better error messages, otherwise the placeholder
system ? "<system>",
attrName ? "<check_name>",
...
}:
let
nixos-lib = import (pkgs.path + "/nixos/lib") { };
in
(nixos-lib.runTest (
{ config, ... }:
let
clanFlakeResult = config.clan;
in
{
imports = [
nixosTest
] ++ lib.optionals (useContainers) [ ./container-test-driver/driver-module.nix ];
options = {
clanSettings = mkOption {
default = { };
type = types.submodule {
options = {
clan-core = mkOption { default = self; };
nixpkgs = mkOption { default = self.inputs.nixpkgs; };
nix-darwin = mkOption { default = self.inputs.nix-darwin; };
};
};
};
clan = mkOption {
default = { };
type = types.submoduleWith {
specialArgs = {
inherit (config.clanSettings)
clan-core
nixpkgs
nix-darwin
;
};
modules = [
clanLib.buildClanModule.flakePartsModule
{
_prefix = [
"checks"
system
attrName
"config"
"clan"
];
}
];
};
};
};
config = {
# Inherit all nodes from the clan
# i.e. nodes.jon <- clan.machines.jon
# clanInternals.nixosModules contains nixosModules per node
nodes = clanFlakeResult.clanInternals.nixosModules;
hostPkgs = pkgs;
# !WARNING: Write a detailed comment if adding new options here
# We should be very careful about adding new options here because it affects all tests
# Keep in mind:
# - tests should be close to the real world as possible
# - ensure stability: in clan-core and downstream
# - ensure that the tests are fast and reliable
defaults = (
{ config, ... }:
{
imports = [
# Speed up evaluation
clanLib.test.minifyModule
# Setup for sops during tests
# configures a static age-key to skip the age-key generation
clanLib.test.sopsModule
];
# Disable documentation
# This is nice to speed up the evaluation
# And also suppresses any warnings or errors about the documentation
documentation.enable = lib.mkDefault false;
# Disable garbage collection during the test
# https://nix.dev/manual/nix/2.28/command-ref/conf-file.html?highlight=min-free#available-settings
nix.settings.min-free = 0;
# This is typically set once via vars generate for a machine
# Since we have ephemeral machines, we set it here for the test
system.stateVersion = config.system.nixos.release;
# Currently this is the default in NixOS, but we set it explicitly to avoid surprises
# Disable the initrd systemd service which has the following effect
#
# With the below on 'false' initrd runs a 'minimal shell script', called the stage-1 init.
# Benefits:
# Simple and fast.
# Easier to debug for very minimal or custom setups.
# Drawbacks:
# Limited flexibility.
# Harder to handle advanced setups (like TPM, LUKS, or LVM-on-LUKS) but not needed since we are in a test
# No systemd journal logs from initrd.
boot.initrd.systemd.enable = false;
}
);
# TODO: figure out if we really need this
# I am proposing for less magic in the test-framework
# People may add this in their own tests
# _module.args = { inherit self; };
# node.specialArgs.self = self;
};
}
)).config.result;
}