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#!./perl
use strict;
use warnings;
require q(./test.pl); plan(tests => 12);
=pod
This example is taken from: http://rt.cpan.org/Public/Bug/Display.html?id=20879
--- --- ---
Level 5 8 | A | 9 | B | A | C | (More General)
--- --- --- V
\ | / |
\ | / |
\ | / |
\ | / |
--- |
Level 4 7 | D | |
--- |
/ \ |
/ \ |
--- --- |
Level 3 4 | G | 6 | E | |
--- --- |
| | |
| | |
--- --- |
Level 2 3 | H | 5 | F | |
--- --- |
\ / | |
\ / | |
\ | |
/ \ | |
/ \ | |
--- --- |
Level 1 1 | J | 2 | I | |
--- --- |
\ / |
\ / |
--- v
Level 0 0 | K | (More Specialized)
---
0123456789A
KJIHGFEDABC
=cut
{
package Test::A; use mro 'c3';
package Test::B; use mro 'c3';
package Test::C; use mro 'c3';
package Test::D; use mro 'c3';
use base qw/Test::A Test::B Test::C/;
package Test::E; use mro 'c3';
use base qw/Test::D/;
package Test::F; use mro 'c3';
use base qw/Test::E/;
sub testmeth { "wrong" }
package Test::G; use mro 'c3';
use base qw/Test::D/;
package Test::H; use mro 'c3';
use base qw/Test::G/;
package Test::I; use mro 'c3';
use base qw/Test::H Test::F/;
sub testmeth { "right" }
package Test::J; use mro 'c3';
use base qw/Test::F/;
package Test::K; use mro 'c3';
use base qw/Test::J Test::I/;
sub testmeth { shift->next::method }
}
ok(eq_array(
mro::get_linear_isa('Test::A'),
[ qw(Test::A) ]
), '... got the right C3 merge order for Test::A');
ok(eq_array(
mro::get_linear_isa('Test::B'),
[ qw(Test::B) ]
), '... got the right C3 merge order for Test::B');
ok(eq_array(
mro::get_linear_isa('Test::C'),
[ qw(Test::C) ]
), '... got the right C3 merge order for Test::C');
ok(eq_array(
mro::get_linear_isa('Test::D'),
[ qw(Test::D Test::A Test::B Test::C) ]
), '... got the right C3 merge order for Test::D');
ok(eq_array(
mro::get_linear_isa('Test::E'),
[ qw(Test::E Test::D Test::A Test::B Test::C) ]
), '... got the right C3 merge order for Test::E');
ok(eq_array(
mro::get_linear_isa('Test::F'),
[ qw(Test::F Test::E Test::D Test::A Test::B Test::C) ]
), '... got the right C3 merge order for Test::F');
ok(eq_array(
mro::get_linear_isa('Test::G'),
[ qw(Test::G Test::D Test::A Test::B Test::C) ]
), '... got the right C3 merge order for Test::G');
ok(eq_array(
mro::get_linear_isa('Test::H'),
[ qw(Test::H Test::G Test::D Test::A Test::B Test::C) ]
), '... got the right C3 merge order for Test::H');
ok(eq_array(
mro::get_linear_isa('Test::I'),
[ qw(Test::I Test::H Test::G Test::F Test::E Test::D Test::A Test::B Test::C) ]
), '... got the right C3 merge order for Test::I');
ok(eq_array(
mro::get_linear_isa('Test::J'),
[ qw(Test::J Test::F Test::E Test::D Test::A Test::B Test::C) ]
), '... got the right C3 merge order for Test::J');
ok(eq_array(
mro::get_linear_isa('Test::K'),
[ qw(Test::K Test::J Test::I Test::H Test::G Test::F Test::E Test::D Test::A Test::B Test::C) ]
), '... got the right C3 merge order for Test::K');
is(Test::K->testmeth(), "right", 'next::method working ok');
|
