devos/tests/default.nix

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Nix
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{ self, pkgs }:
let
inherit (self.inputs) nixos;
inherit (self.nixosConfigurations.NixOS.config.lib) testModule specialArgs;
# current release 20.09 does not support the specialArgs required for us
# to use tests as we would normally use hosts. Using the "testing-python.nix"
# from the override flake would build the test-vm from an unstable os
# different than the one our systems are running. Instead simply patch nixpkgs
# to include the updated version. This can be removed in the next release
patchedNixpkgs =
pkgs.stdenv.mkDerivation {
name = "nixpkgs-patched";
src = nixos;
patches = [ ./0004-nixos-testing-Add-support-for-specialArgs.patch ];
dontBuild = true;
dontFixup = true;
versionSuffix = "pre${
if nixos ? lastModified
then builtins.substring 0 8 (nixos.lastModifiedDate or nixos.lastModified)
else toString nixos.revCount}.${nixos.shortRev or "dirty"}";
configurePhase = ''
echo -n $VERSION_SUFFIX > .version-suffix
echo -n ${nixos.rev or nixos.shortRev or "dirty"} > .git-revision
'';
installPhase = ''
cp -r $PWD $out
'';
};
mkTest =
let
nixosTesting =
(import "${patchedNixpkgs}/nixos/lib/testing-python.nix" {
inherit (pkgs.stdenv.hostPlatform) system;
inherit specialArgs;
inherit pkgs;
extraConfigurations = [
testModule
];
});
in
test:
let
loadedTest =
if builtins.typeOf test == "path"
then import test
else test;
calledTest =
if pkgs.lib.isFunction loadedTest
then pkgs.callPackage loadedTest { }
else loadedTest;
in
nixosTesting.makeTest calledTest;
in
{
profilesTest = mkTest {
name = "profiles";
machine = { suites, ... }: {
imports = suites.allProfiles ++ suites.allUsers;
};
testScript = ''
machine.systemctl("is-system-running --wait")
'';
};
libTests = pkgs.runCommandNoCC "devos-lib-tests"
{
buildInputs = [
pkgs.nix
(
let tests = import ./lib.nix { inherit self pkgs; };
in
if tests == [ ]
then null
else throw (builtins.toJSON tests)
)
];
} ''
datadir="${pkgs.nix}/share"
export TEST_ROOT=$(pwd)/test-tmp
export NIX_BUILD_HOOK=
export NIX_CONF_DIR=$TEST_ROOT/etc
export NIX_LOCALSTATE_DIR=$TEST_ROOT/var
export NIX_LOG_DIR=$TEST_ROOT/var/log/nix
export NIX_STATE_DIR=$TEST_ROOT/var/nix
export NIX_STORE_DIR=$TEST_ROOT/store
export PAGER=cat
cacheDir=$TEST_ROOT/binary-cache
nix-store --init
touch $out
'';
}