1#!/usr/bin/perl 2 3use strict; 4use warnings; 5 6use Test::More tests => 7; 7 8BEGIN { 9 use_ok('Class::C3::XS'); 10} 11 12=pod 13 14This example is take from: http://www.python.org/2.3/mro.html 15 16"My first example" 17class O: pass 18class F(O): pass 19class E(O): pass 20class D(O): pass 21class C(D,F): pass 22class B(D,E): pass 23class A(B,C): pass 24 25 26 6 27 --- 28Level 3 | O | (more general) 29 / --- \ 30 / | \ | 31 / | \ | 32 / | \ | 33 --- --- --- | 34Level 2 3 | D | 4| E | | F | 5 | 35 --- --- --- | 36 \ \ _ / | | 37 \ / \ _ | | 38 \ / \ | | 39 --- --- | 40Level 1 1 | B | | C | 2 | 41 --- --- | 42 \ / | 43 \ / \ / 44 --- 45Level 0 0 | A | (more specialized) 46 --- 47 48=cut 49 50{ 51 package Test::O; 52 our @ISA = qw//; 53 54 package Test::F; 55 use base 'Test::O'; 56 57 package Test::E; 58 use base 'Test::O'; 59 60 package Test::D; 61 use base 'Test::O'; 62 63 package Test::C; 64 use base ('Test::D', 'Test::F'); 65 66 package Test::B; 67 use base ('Test::D', 'Test::E'); 68 69 package Test::A; 70 use base ('Test::B', 'Test::C'); 71} 72 73is_deeply( 74 [ Class::C3::XS::calculateMRO('Test::F') ], 75 [ qw(Test::F Test::O) ], 76 '... got the right MRO for Test::F'); 77 78is_deeply( 79 [ Class::C3::XS::calculateMRO('Test::E') ], 80 [ qw(Test::E Test::O) ], 81 '... got the right MRO for Test::E'); 82 83is_deeply( 84 [ Class::C3::XS::calculateMRO('Test::D') ], 85 [ qw(Test::D Test::O) ], 86 '... got the right MRO for Test::D'); 87 88is_deeply( 89 [ Class::C3::XS::calculateMRO('Test::C') ], 90 [ qw(Test::C Test::D Test::F Test::O) ], 91 '... got the right MRO for Test::C'); 92 93is_deeply( 94 [ Class::C3::XS::calculateMRO('Test::B') ], 95 [ qw(Test::B Test::D Test::E Test::O) ], 96 '... got the right MRO for Test::B'); 97 98is_deeply( 99 [ Class::C3::XS::calculateMRO('Test::A') ], 100 [ qw(Test::A Test::B Test::C Test::D Test::E Test::F Test::O) ], 101 '... got the right MRO for Test::A'); 102 103