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|---|
| e1a479c5 |
1 | #!./perl |
| 2 | |
| 3 | use strict; |
| 4 | use warnings; |
| 5 | BEGIN { |
| 6 | unless (-d 'blib') { |
| 7 | chdir 't' if -d 't'; |
| 8 | @INC = '../lib'; |
| 9 | } |
| 10 | } |
| 11 | |
| 12 | use Test::More tests => 10; |
| 13 | |
| 14 | =pod |
| 15 | |
| 16 | This example is take from: http://www.python.org/2.3/mro.html |
| 17 | |
| 18 | "My first example" |
| 19 | class O: pass |
| 20 | class F(O): pass |
| 21 | class E(O): pass |
| 22 | class D(O): pass |
| 23 | class C(D,F): pass |
| 24 | class B(D,E): pass |
| 25 | class A(B,C): pass |
| 26 | |
| 27 | |
| 28 | 6 |
| 29 | --- |
| 30 | Level 3 | O | (more general) |
| 31 | / --- \ |
| 32 | / | \ | |
| 33 | / | \ | |
| 34 | / | \ | |
| 35 | --- --- --- | |
| 36 | Level 2 3 | D | 4| E | | F | 5 | |
| 37 | --- --- --- | |
| 38 | \ \ _ / | | |
| 39 | \ / \ _ | | |
| 40 | \ / \ | | |
| 41 | --- --- | |
| 42 | Level 1 1 | B | | C | 2 | |
| 43 | --- --- | |
| 44 | \ / | |
| 45 | \ / \ / |
| 46 | --- |
| 47 | Level 0 0 | A | (more specialized) |
| 48 | --- |
| 49 | |
| 50 | =cut |
| 51 | |
| 52 | { |
| 53 | package Test::O; |
| 54 | use mro 'c3'; |
| 55 | |
| 56 | package Test::F; |
| 57 | use mro 'c3'; |
| 58 | use base 'Test::O'; |
| 59 | |
| 60 | package Test::E; |
| 61 | use base 'Test::O'; |
| 62 | use mro 'c3'; |
| 63 | |
| 64 | sub C_or_E { 'Test::E' } |
| 65 | |
| 66 | package Test::D; |
| 67 | use mro 'c3'; |
| 68 | use base 'Test::O'; |
| 69 | |
| 70 | sub C_or_D { 'Test::D' } |
| 71 | |
| 72 | package Test::C; |
| 73 | use base ('Test::D', 'Test::F'); |
| 74 | use mro 'c3'; |
| 75 | |
| 76 | sub C_or_D { 'Test::C' } |
| 77 | sub C_or_E { 'Test::C' } |
| 78 | |
| 79 | package Test::B; |
| 80 | use mro 'c3'; |
| 81 | use base ('Test::D', 'Test::E'); |
| 82 | |
| 83 | package Test::A; |
| 84 | use base ('Test::B', 'Test::C'); |
| 85 | use mro 'c3'; |
| 86 | } |
| 87 | |
| 88 | is_deeply( |
| 89 | mro::get_linear_isa('Test::F'), |
| 90 | [ qw(Test::F Test::O) ], |
| 91 | '... got the right MRO for Test::F'); |
| 92 | |
| 93 | is_deeply( |
| 94 | mro::get_linear_isa('Test::E'), |
| 95 | [ qw(Test::E Test::O) ], |
| 96 | '... got the right MRO for Test::E'); |
| 97 | |
| 98 | is_deeply( |
| 99 | mro::get_linear_isa('Test::D'), |
| 100 | [ qw(Test::D Test::O) ], |
| 101 | '... got the right MRO for Test::D'); |
| 102 | |
| 103 | is_deeply( |
| 104 | mro::get_linear_isa('Test::C'), |
| 105 | [ qw(Test::C Test::D Test::F Test::O) ], |
| 106 | '... got the right MRO for Test::C'); |
| 107 | |
| 108 | is_deeply( |
| 109 | mro::get_linear_isa('Test::B'), |
| 110 | [ qw(Test::B Test::D Test::E Test::O) ], |
| 111 | '... got the right MRO for Test::B'); |
| 112 | |
| 113 | is_deeply( |
| 114 | mro::get_linear_isa('Test::A'), |
| 115 | [ qw(Test::A Test::B Test::C Test::D Test::E Test::F Test::O) ], |
| 116 | '... got the right MRO for Test::A'); |
| 117 | |
| 118 | is(Test::A->C_or_D, 'Test::C', '... got the expected method output'); |
| 119 | is(Test::A->can('C_or_D')->(), 'Test::C', '... can got the expected method output'); |
| 120 | is(Test::A->C_or_E, 'Test::C', '... got the expected method output'); |
| 121 | is(Test::A->can('C_or_E')->(), 'Test::C', '... can got the expected method output'); |
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