nixpkgs/nixos/tests/hibernate.nix

56 lines
1.7 KiB
Nix

# Test whether hibernation from partition works.
{ system ? builtins.currentSystem
, config ? {}
, pkgs ? import ../.. { inherit system config; }
, systemdStage1 ? false
}:
with import ../lib/testing-python.nix { inherit system pkgs; };
makeTest {
name = "hibernate";
nodes = {
machine = { config, lib, pkgs, ... }: {
imports = [
./common/auto-format-root-device.nix
];
systemd.services.backdoor.conflicts = [ "sleep.target" ];
powerManagement.resumeCommands = "systemctl --no-block restart backdoor.service";
virtualisation.emptyDiskImages = [ (2 * config.virtualisation.memorySize) ];
virtualisation.useNixStoreImage = true;
swapDevices = lib.mkOverride 0 [ { device = "/dev/vdc"; options = [ "x-systemd.makefs" ]; } ];
boot.resumeDevice = "/dev/vdc";
boot.initrd.systemd.enable = systemdStage1;
};
};
testScript = ''
# Drop in file that checks if we un-hibernated properly (and not booted fresh)
machine.wait_for_unit("default.target")
machine.succeed(
"mkdir /run/test",
"mount -t ramfs -o size=1m ramfs /run/test",
"echo not persisted to disk > /run/test/suspended",
)
# Hibernate machine
machine.execute("systemctl hibernate >&2 &", check_return=False)
machine.wait_for_shutdown()
# Restore machine from hibernation, validate our ramfs file is there.
machine.start()
machine.succeed("grep 'not persisted to disk' /run/test/suspended")
# Ensure we don't restore from hibernation when booting again
machine.crash()
machine.wait_for_unit("default.target")
machine.fail("grep 'not persisted to disk' /run/test/suspended")
'';
}