nixpkgs/nixos/tests/nix/upgrade.nix
Jared Baur c2621cb78a
nixosTests.nix-upgrade: fix failing test
The test currently fails because we attempt to switch to a NixOS
configuration that is _very_ different from the one we are switching
from (e.g. the new configuration has an entirely empty /etc/fstab,
causing switch-to-configuration to want to start unmounting all
filesystems defined in the old configuration).
2024-10-05 09:51:28 -07:00

103 lines
3.4 KiB
Nix

{ pkgs, nixVersions, ... }:
let
lib = pkgs.lib;
fallback-paths-external = pkgs.writeTextDir "fallback-paths.nix" ''
{
${pkgs.system} = "${nixVersions.latest}";
}'';
nixos-module = builtins.toFile "nixos-module.nix" ''
{ lib, pkgs, modulesPath, ... }:
{
imports = [
(modulesPath + "/profiles/minimal.nix")
(modulesPath + "/testing/test-instrumentation.nix")
];
hardware.enableAllFirmware = lib.mkForce false;
nix.settings.substituters = lib.mkForce [];
nix.settings.hashed-mirrors = null;
nix.settings.connect-timeout = 1;
nix.extraOptions = "experimental-features = nix-command";
environment.localBinInPath = true;
users.users.alice = {
isNormalUser = true;
packages = [ pkgs.nixVersions.latest ];
};
documentation.enable = false;
}
'';
in
pkgs.testers.nixosTest {
name = "nix-upgrade-${nixVersions.stable.version}-${nixVersions.latest.version}";
meta.maintainers = with lib.maintainers; [ tomberek ];
nodes.machine = {
imports = [ nixos-module ];
nix.package = nixVersions.stable;
system.extraDependencies = [
fallback-paths-external
];
specialisation.newer-nix.configuration = {
nix.package = lib.mkForce nixVersions.latest;
users.users.alice.isNormalUser = true;
};
};
testScript = ''
machine.start()
machine.wait_for_unit("multi-user.target")
with subtest("nix-current"):
# Create a profile to pretend we are on non-NixOS
print(machine.succeed("nix --version"))
print(machine.succeed("nix-env -i /run/current-system/sw/bin/nix -p /root/.local"))
with subtest("nix-upgrade"):
print(machine.succeed("nix upgrade-nix --nix-store-paths-url file://${fallback-paths-external}/fallback-paths.nix --profile /root/.local"))
result = machine.succeed("nix --version")
print(result)
import re
match = re.match(r".*${nixVersions.latest.version}$",result)
if not match: raise Exception("Couldn't find new version in output: " + result)
with subtest("nix-build-with-mismatch-daemon"):
machine.succeed("runuser -u alice -- nix build --expr 'derivation {name =\"test\"; system = \"${pkgs.system}\";builder = \"/bin/sh\"; args = [\"-c\" \"echo test > $out\"];}' --print-out-paths")
with subtest("remove-new-nix"):
machine.succeed("rm -rf /root/.local")
result = machine.succeed("nix --version")
print(result)
import re
match = re.match(r".*${nixVersions.stable.version}$",result)
with subtest("upgrade-via-switch-to-configuration"):
# not using nixos-rebuild due to nix-instantiate being called and forcing all drv's to be rebuilt
print(machine.succeed("/run/current-system/specialisation/newer-nix/bin/switch-to-configuration switch"))
result = machine.succeed("nix --version")
print(result)
import re
match = re.match(r".*${nixVersions.latest.version}$",result)
if not match: raise Exception("Couldn't find new version in output: " + result)
with subtest("nix-build-with-new-daemon"):
machine.succeed("runuser -u alice -- nix build --expr 'derivation {name =\"test-new\"; system = \"${pkgs.system}\";builder = \"/bin/sh\"; args = [\"-c\" \"echo test > $out\"];}' --print-out-paths")
with subtest("nix-collect-garbage-with-old-nix"):
machine.succeed("${nixVersions.stable}/bin/nix-collect-garbage")
'';
}