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204e6232 BF |
1 | #!/usr/bin/perl |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | ||
6 | require q(./test.pl); plan(tests => 10); | |
7 | ||
8 | use utf8; | |
9 | use open qw( :utf8 :std ); | |
10 | ||
11 | =pod | |
12 | ||
13 | This tests the classic diamond inheritance pattern. | |
14 | ||
15 | <A> | |
16 | / \ | |
17 | <B> <C> | |
18 | \ / | |
19 | <D> | |
20 | ||
21 | =cut | |
22 | ||
23 | { | |
24 | package Diᚪၚd_A; | |
25 | use mro 'c3'; | |
26 | sub ᴮaȐ { 'Diᚪၚd_A::ᴮaȐ' } | |
27 | sub 바ź { 'Diᚪၚd_A::바ź' } | |
28 | } | |
29 | { | |
30 | package Diᚪၚd_B; | |
31 | use base 'Diᚪၚd_A'; | |
32 | use mro 'c3'; | |
33 | sub 바ź { 'Diᚪၚd_B::바ź => ' . (shift)->next::method() } | |
34 | } | |
35 | { | |
36 | package Diᚪၚd_C; | |
37 | use mro 'c3'; | |
38 | use base 'Diᚪၚd_A'; | |
39 | sub ᕘ { 'Diᚪၚd_C::ᕘ' } | |
40 | sub buƵ { 'Diᚪၚd_C::buƵ' } | |
41 | ||
42 | sub woz { 'Diᚪၚd_C::woz' } | |
43 | sub maᐇbʚ { 'Diᚪၚd_C::maᐇbʚ' } | |
44 | } | |
45 | { | |
46 | package Diᚪၚd_D; | |
47 | use base ('Diᚪၚd_B', 'Diᚪၚd_C'); | |
48 | use mro 'c3'; | |
49 | sub ᕘ { 'Diᚪၚd_D::ᕘ => ' . (shift)->next::method() } | |
50 | sub ᴮaȐ { 'Diᚪၚd_D::ᴮaȐ => ' . (shift)->next::method() } | |
51 | sub buƵ { 'Diᚪၚd_D::buƵ => ' . (shift)->바ź() } | |
52 | sub fuz { 'Diᚪၚd_D::fuz => ' . (shift)->next::method() } | |
53 | ||
54 | sub woz { 'Diᚪၚd_D::woz can => ' . ((shift)->next::can() ? 1 : 0) } | |
55 | sub noz { 'Diᚪၚd_D::noz can => ' . ((shift)->next::can() ? 1 : 0) } | |
56 | ||
57 | sub maᐇbʚ { 'Diᚪၚd_D::maᐇbʚ => ' . ((shift)->maybe::next::method() || 0) } | |
58 | sub ᒧyベ { 'Diᚪၚd_D::ᒧyベ => ' . ((shift)->maybe::next::method() || 0) } | |
59 | ||
60 | } | |
61 | ||
62 | ok(eq_array( | |
63 | mro::get_linear_isa('Diᚪၚd_D'), | |
64 | [ qw(Diᚪၚd_D Diᚪၚd_B Diᚪၚd_C Diᚪၚd_A) ] | |
65 | ), '... got the right MRO for Diᚪၚd_D'); | |
66 | ||
67 | is(Diᚪၚd_D->ᕘ, 'Diᚪၚd_D::ᕘ => Diᚪၚd_C::ᕘ', '... skipped B and went to C correctly'); | |
68 | is(Diᚪၚd_D->ᴮaȐ, 'Diᚪၚd_D::ᴮaȐ => Diᚪၚd_A::ᴮaȐ', '... skipped B & C and went to A correctly'); | |
69 | is(Diᚪၚd_D->바ź, 'Diᚪၚd_B::바ź => Diᚪၚd_A::바ź', '... called B method, skipped C and went to A correctly'); | |
70 | is(Diᚪၚd_D->buƵ, 'Diᚪၚd_D::buƵ => Diᚪၚd_B::바ź => Diᚪၚd_A::바ź', '... called D method dispatched to , different method correctly'); | |
7ad9a4ff BF |
71 | eval { Diᚪၚd_D->fuz }; |
72 | like($@, qr/^No next::method 'fuz' found for Diᚪၚd_D/u, '... cannot re-dispatch to a method which is not there'); | |
204e6232 BF |
73 | is(Diᚪၚd_D->woz, 'Diᚪၚd_D::woz can => 1', '... can re-dispatch figured out correctly'); |
74 | is(Diᚪၚd_D->noz, 'Diᚪၚd_D::noz can => 0', '... cannot re-dispatch figured out correctly'); | |
75 | ||
76 | is(Diᚪၚd_D->maᐇbʚ, 'Diᚪၚd_D::maᐇbʚ => Diᚪၚd_C::maᐇbʚ', '... redispatched D to C when it exists'); | |
77 | is(Diᚪၚd_D->ᒧyベ, 'Diᚪၚd_D::ᒧyベ => 0', '... quietly failed redispatch from D'); |