+my ($tmp, $for_destroy) = tmpdir();
+my $pid;
+my $opt = { run_mode => 0, 1 => \(my $out = '') };
+if (run_script([qw(lei daemon-pid)], undef, $opt)) {
+ chomp($pid = $out);
+ mkdir "$tmp/d" or BAIL_OUT $!;
+ local $ENV{TMPDIR} = "$tmp/d";
+ $do_test->();
+ $out = '';
+ ok(run_script([qw(lei daemon-pid)], undef, $opt), 'daemon-pid again');
+ chomp($out);
+ is($out, $pid, 'daemon-pid unchanged');
+ ok(kill(0, $pid), 'daemon still running');
+ $out = '';
+}
+{
+ mkdir "$tmp/1" or BAIL_OUT $!;
+ local $ENV{TMPDIR} = "$tmp/1";
+ $do_test->({XDG_RUNTIME_DIR => '/dev/null'});
+ is(unlink(glob("$tmp/1/*")), 0, 'nothing left over w/ oneshot');
+}
+
+# the one-shot test should be slow enough that the daemon has cleaned
+# up in the background:
+is_deeply([glob("$tmp/d/*")], [], 'nothing left over with daemon');