is_deeply \@li, [qw(D H)], 'found the right li elements';
@li = ();
$dom->find('li:nth-child(4n+4)')->each(sub { push @li, shift->text });
-is_deeply \@li, [qw(D H)], 'found the right li element';
+is_deeply \@li, [qw(D H)], 'found the right li elements';
@li = ();
$dom->find('li:nth-last-child(4n+4)')->each(sub { push @li, shift->text });
-is_deeply \@li, [qw(A E)], 'found the right li element';
+is_deeply \@li, [qw(A E)], 'found the right li elements';
@li = ();
$dom->find('li:nth-child(4n)')->each(sub { push @li, shift->text });
-is_deeply \@li, [qw(D H)], 'found the right li element';
+is_deeply \@li, [qw(D H)], 'found the right li elements';
@li = ();
$dom->find('li:nth-child( 4n )')->each(sub { push @li, shift->text });
-is_deeply \@li, [qw(D H)], 'found the right li element';
+is_deeply \@li, [qw(D H)], 'found the right li elements';
@li = ();
$dom->find('li:nth-last-child(4n)')->each(sub { push @li, shift->text });
-is_deeply \@li, [qw(A E)], 'found the right li element';
+is_deeply \@li, [qw(A E)], 'found the right li elements';
@li = ();
$dom->find('li:nth-child(5n-2)')->each(sub { push @li, shift->text });
-is_deeply \@li, [qw(C H)], 'found the right li element';
+is_deeply \@li, [qw(C H)], 'found the right li elements';
@li = ();
$dom->find('li:nth-child( 5n - 2 )')->each(sub { push @li, shift->text });
-is_deeply \@li, [qw(C H)], 'found the right li element';
+is_deeply \@li, [qw(C H)], 'found the right li elements';
@li = ();
$dom->find('li:nth-last-child(5n-2)')->each(sub { push @li, shift->text });
-is_deeply \@li, [qw(A F)], 'found the right li element';
+is_deeply \@li, [qw(A F)], 'found the right li elements';
@li = ();
$dom->find('li:nth-child(-n+3)')->each(sub { push @li, shift->text });
is_deeply \@li, [qw(A B C)], 'found first three li elements';
$dom->find('li:Nth-Last-Child(3N)')->each(sub { push @li, shift->text });
is_deeply \@li, [qw(C F)], 'found every third li elements';
@li = ();
-$dom->find('li:nth-child(3)')->each(sub { push @li, shift->text });
+$dom->find('li:nth-child( 3 )')->each(sub { push @li, shift->text });
is_deeply \@li, ['C'], 'found third li element';
@li = ();
-$dom->find('li:nth-last-child(3)')->each(sub { push @li, shift->text });
+$dom->find('li:nth-last-child( +3 )')->each(sub { push @li, shift->text });
is_deeply \@li, ['F'], 'found third last li element';
@li = ();
$dom->find('li:nth-child(1n+0)')->each(sub { push @li, shift->text });
-is_deeply \@li, [qw(A B C D E F G)], 'found first three li elements';
+is_deeply \@li, [qw(A B C D E F G)], 'found all li elements';
+@li = ();
+$dom->find('li:nth-child(1n-0)')->each(sub { push @li, shift->text });
+is_deeply \@li, [qw(A B C D E F G)], 'found all li elements';
@li = ();
$dom->find('li:nth-child(n+0)')->each(sub { push @li, shift->text });
-is_deeply \@li, [qw(A B C D E F G)], 'found first three li elements';
+is_deeply \@li, [qw(A B C D E F G)], 'found all li elements';
+@li = ();
+$dom->find('li:nth-child(n)')->each(sub { push @li, shift->text });
+is_deeply \@li, [qw(A B C D E F G)], 'found all li elements';
+@li = ();
+$dom->find('li:nth-child(n+0)')->each(sub { push @li, shift->text });
+is_deeply \@li, [qw(A B C D E F G)], 'found all li elements';
@li = ();
$dom->find('li:NTH-CHILD(N+0)')->each(sub { push @li, shift->text });
-is_deeply \@li, [qw(A B C D E F G)], 'found first three li elements';
+is_deeply \@li, [qw(A B C D E F G)], 'found all li elements';
@li = ();
$dom->find('li:Nth-Child(N+0)')->each(sub { push @li, shift->text });
-is_deeply \@li, [qw(A B C D E F G)], 'found first three li elements';
+is_deeply \@li, [qw(A B C D E F G)], 'found all li elements';
@li = ();
$dom->find('li:nth-child(n)')->each(sub { push @li, shift->text });
-is_deeply \@li, [qw(A B C D E F G)], 'found first three li elements';
+is_deeply \@li, [qw(A B C D E F G)], 'found all li elements';
+@li = ();
+$dom->find('li:nth-child(0n+1)')->each(sub { push @li, shift->text });
+is_deeply \@li, [qw(A)], 'found first li element';
+is $dom->find('li:nth-child(0n+0)')->size, 0, 'no results';
+is $dom->find('li:nth-child(0)')->size, 0, 'no results';
+is $dom->find('li:nth-child()')->size, 0, 'no results';
+is $dom->find('li:nth-child(whatever)')->size, 0, 'no results';
+is $dom->find('li:whatever(whatever)')->size, 0, 'no results';
# Even more pseudo-classes
$dom = DOM::Tiny->new(<<EOF);
$dom->find('ul :nth-child(-n+3):not(li)')->each(sub { push @e, shift->text });
is_deeply \@e, ['B'], 'found first p element';
@e = ();
+$dom->find('ul :nth-child(-n+3):NOT(li)')->each(sub { push @e, shift->text });
+is_deeply \@e, ['B'], 'found first p element';
+@e = ();
$dom->find('ul :nth-child(-n+3):not(:first-child)')
->each(sub { push @e, shift->text });
is_deeply \@e, [qw(B C)], 'found second and third element';