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