tests/misc.nix: Ensure that the Nix DB is initialised correctly

Changed files
+4
nixos
tests
+4
nixos/tests/misc.nix
···
subtest "shell-vars", sub {
$machine->succeed('[ -n "$NIX_PATH" ]');
};
'';
}
···
subtest "shell-vars", sub {
$machine->succeed('[ -n "$NIX_PATH" ]');
};
+
+
subtest "nix-db", sub {
+
$machine->succeed("nix-store -qR /run/current-system | grep nixos-");
+
};
'';
}