my %mid2num;
my %num2mid;
my @mids = qw(a@b c@d e@f g@h aa@bb aa@cc);
-is_deeply([$d->minmax], [undef,undef], "empty min max on new DB");
+is_deeply([$d->minmax], [0,0], "zero min max on new DB");
foreach my $mid (@mids) {
my $n = $d->mid_insert($mid);
$d->mid_delete('spam@1');
is($d->mid_insert('spam@2'), 1 + $orig, "last number not recycled");
-my $tmp = $d->tmp_clone;
+my $tmp = $d->tmp_clone($tmpdir);
is_deeply([$d->minmax], [$tmp->minmax], 'Cloned temporary DB matches');
ok($tmp->mid_delete('spam@2'), 'temporary DB is writable');