nixpkgs/nixos/tests/swap-partition.nix

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2022-06-22 02:11:23 +00:00
import ./make-test-python.nix ({ lib, pkgs, ... }:
{
name = "swap-partition";
nodes.machine =
{ config, pkgs, lib, ... }:
{
virtualisation.useDefaultFilesystems = false;
virtualisation.bootDevice = "/dev/vda1";
boot.initrd.postDeviceCommands = ''
if ! test -b /dev/vda1; then
${pkgs.parted}/bin/parted --script /dev/vda -- mklabel msdos
${pkgs.parted}/bin/parted --script /dev/vda -- mkpart primary 1MiB -250MiB
${pkgs.parted}/bin/parted --script /dev/vda -- mkpart primary -250MiB 100%
sync
fi
FSTYPE=$(blkid -o value -s TYPE /dev/vda1 || true)
if test -z "$FSTYPE"; then
${pkgs.e2fsprogs}/bin/mke2fs -t ext4 -L root /dev/vda1
${pkgs.util-linux}/bin/mkswap --label swap /dev/vda2
fi
'';
virtualisation.fileSystems = {
"/" = {
device = "/dev/disk/by-label/root";
fsType = "ext4";
};
};
swapDevices = [
{
device = "/dev/disk/by-label/swap";
}
];
};
testScript = ''
machine.wait_for_unit("multi-user.target")
with subtest("Swap is active"):
# Doesn't matter if the numbers reported by `free` are slightly off due to unit conversions.
machine.succeed("free -h | grep -E 'Swap:\s+2[45][0-9]Mi'")
'';
})