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nixpkgs/nixos/tests/misc.nix

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Nix

# Miscellaneous small tests that don't warrant their own VM run.
{ pkgs, ... }:
{
machine =
{ config, pkgs, ... }:
{ swapDevices = pkgs.lib.mkOverride 0
[ { device = "/root/swapfile"; size = 128; } ];
environment.variables.EDITOR = pkgs.lib.mkOverride 0 "emacs";
};
testScript =
''
subtest "nixos-version", sub {
$machine->succeed("[ `nixos-version | wc -w` = 2 ]");
};
subtest "nixos-rebuild", sub {
$machine->succeed("nixos-rebuild --help | grep 'Usage:'");
};
# Sanity check for uid/gid assignment.
subtest "users-groups", sub {
$machine->succeed("[ `id -u messagebus` = 4 ]");
$machine->succeed("[ `id -g messagebus` = 4 ]");
$machine->succeed("[ `getent group users` = 'users:x:100:' ]");
};
# Regression test for GMP aborts on QEMU.
subtest "gmp", sub {
$machine->succeed("expr 1 + 2");
};
# Test that the swap file got created.
subtest "swapfile", sub {
$machine->waitForUnit("root-swapfile.swap");
$machine->succeed("ls -l /root/swapfile | grep 134217728");
};
# Test whether kernel.poweroff_cmd is set.
subtest "poweroff_cmd", sub {
$machine->succeed("[ -x \"\$(cat /proc/sys/kernel/poweroff_cmd)\" ]")
};
# Test whether the blkio controller is properly enabled.
subtest "blkio-cgroup", sub {
$machine->succeed("[ -n \"\$(cat /sys/fs/cgroup/blkio/blkio.sectors)\" ]")
};
# Test whether we have a reboot record in wtmp.
subtest "reboot-wtmp", sub {
$machine->succeed("last | grep reboot >&2");
};
# Test whether we can override environment variables.
subtest "override-env-var", sub {
$machine->succeed('[ "$EDITOR" = emacs ]');
};
'';
}