{ '$DB ok' if defined $DB && $DB->isa('esmith::ConfigDB') }
{ my $ok = 1;
  foreach my $rec ($DB->get_all) {
    my $key = $rec->key;
    my $type = $rec->props <= 1 ? "SCALAR" : "HASH";
    $ok = 0 unless *{$key}{$type};
  }
  'default vars ok' if $ok;
}