| line | true | false | branch | 
 
| 72 | 35 | 1 | if (defined $serial) { } | 
 
| 73 | 5 | 30 | if (ref $serial eq 'DNS::ZoneSerialNumber') | 
 
| 88 | 2 | 89 | if (not __check_valid_serial(@_)) | 
 
| 95 | 2 | 89 | if (not defined $serial && $serial =~ /^\d+$/ or $serial > 4294967295 or $serial == 0) | 
 
| 107 | 2 | 27 | if (not defined $serial && $serial =~ /^\d+$/ or $serial > 2147483647) | 
 
| 119 | 2 | 36 | if (ref $i2 eq 'DNS::ZoneSerialNumber') | 
 
| 124 | 0 | 38 | if ($swapped) { } | 
 
| 131 | 16 | 22 | if ($i1 == $i2) | 
 
| 135 | 8 | 14 | if ($i1 < $i2 and $i2 - $i1 < 2147483648 or $i1 > $i2 and $i1 - $i2 > 2147483648) | 
 
| 141 | 8 | 6 | if ($i1 < $i2 and $i2 - $i1 > 2147483648 or $i1 > $i2 and $i1 - $i2 < 2147483648) | 
 
| 174 | 0 | 0 | unless (ref $self) | 
 
| 177 | 0 | 0 | if (ref $serial eq 'DNS::ZoneSerialNumber') | 
 
| 209 | 1 | 12 | if (ref $newval eq 'DNS::ZoneSerialNumber') | 
 
| 233 | 1 | 1 | unless (defined $revisions) | 
 
| 234 | 0 | 2 | if (not $revisions =~ /^\d+$/ or $revisions > 99) | 
 
| 278 | 1 | 3 | if (ref $serial eq 'DNS::ZoneSerialNumber') | 
 
| 284 | 1 | 3 | if ($self->lte($serial)) | 
 
| 285 | 0 | 1 | if (wantarray) | 
 
| 291 | 2 | 1 | if (wantarray) | 
 
| 332 | 0 | 1 | if (ref $serial eq 'DNS::ZoneSerialNumber') | 
 
| 336 | 1 | 0 | if ($self->incomparable->eq($serial)) | 
 
| 371 | 6 | 18 | unless (defined $amount) | 
 
| 372 | 0 | 24 | if (ref $amount eq 'DNS::ZoneSerialNumber') | 
 
| 378 | 2 | 20 | if ($s > 4294967295) | 
 
| 382 | 0 | 22 | if ($s == 0) | 
 
| 407 | 1 | 4 | unless (defined $amount) | 
 
| 408 | 3 | 2 | if (ref $amount eq 'DNS::ZoneSerialNumber') | 
 
| 413 | 0 | 5 | if ($swapped) { } | 
 
| 421 | 2 | 3 | if ($s < 1) | 
 
| 425 | 0 | 5 | if ($s == 0) | 
 
| 530 | 1 | 2 | if (defined $r and $r == 1) | 
 
| 537 | 1 | 0 | if (defined $r and $r >= 0) | 
 
| 544 | 1 | 0 | if (defined $r and $r == -1) | 
 
| 551 | 2 | 4 | if (defined $r and $r <= 0) | 
 
| 558 | 14 | 2 | if (defined $r and $r == 0) | 
 
| 565 | 2 | 0 | if (not defined $r or $r != 0) |