blob: 51668162807475d030750798e9076fc3e0f751f6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
use Test::More tests => 7;
BEGIN {
if ($ENV{PERL_CORE}) {
chdir('t') if -d 't';
@INC = qw(../lib);
}
}
BEGIN { use_ok('NEXT') };
my $order = 0;
package A;
@ISA = qw/B C D/;
sub test { ::ok(++$order==1,"test A"); $_[0]->NEXT::UNSEEN::test; 1}
package B;
@ISA = qw/D C/;
sub test { ::ok(++$order==2,"test B"); $_[0]->NEXT::UNSEEN::test; 1}
package C;
@ISA = qw/D/;
sub test { ::ok(++$order==4,"test C"); $_[0]->NEXT::UNSEEN::test; 1}
package D;
sub test { ::ok(++$order==3,"test D"); $_[0]->NEXT::UNSEEN::test; 1}
package main;
my $foo = {};
bless($foo,"A");
eval{ $foo->test }
? pass("Correctly survives after C")
: fail("Shouldn't die on missing ancestor");
package Diamond::Base;
my $seen;
sub test {
$seen++ ? ::fail("Can't visit inherited test twice")
: ::pass("First diamond is okay");
shift->NEXT::UNSEEN::test;
}
package Diamond::Left; @ISA = qw[Diamond::Base];
package Diamond::Right; @ISA = qw[Diamond::Base];
package Diamond::Top; @ISA = qw[Diamond::Left Diamond::Right];
package main;
Diamond::Top->test;
|
