--- /dev/null
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use Test::More tests => 5;
+
+BEGIN {
+ use_ok('Class::C3');
+ # uncomment this line, and re-run the
+ # test to see the normal p5 dispatch order
+ #$Class::C3::TURN_OFF_C3 = 1;
+}
+
+=pod
+
+
+This example is take from: http://www.python.org/2.3/mro.html
+
+"My second example"
+class O: pass
+class F(O): pass
+class E(O): pass
+class D(O): pass
+class C(D,F): pass
+class B(E,D): pass
+class A(B,C): pass
+
+ 6
+ ---
+Level 3 | O |
+ / --- \
+ / | \
+ / | \
+ / | \
+ --- --- ---
+Level 2 2 | E | 4 | D | | F | 5
+ --- --- ---
+ \ / \ /
+ \ / \ /
+ \ / \ /
+ --- ---
+Level 1 1 | B | | C | 3
+ --- ---
+ \ /
+ \ /
+ ---
+Level 0 0 | A |
+ ---
+
+>>> A.mro()
+(<class '__main__.A'>, <class '__main__.B'>, <class '__main__.E'>,
+<class '__main__.C'>, <class '__main__.D'>, <class '__main__.F'>,
+<type 'object'>)
+
+=cut
+
+{
+ package Test::O;
+ use Class::C3;
+
+ sub O_or_D { 'Test::O' }
+ sub O_or_F { 'Test::O' }
+
+ package Test::F;
+ use base 'Test::O';
+ use Class::C3;
+
+ sub O_or_F { 'Test::F' }
+
+ package Test::E;
+ use base 'Test::O';
+ use Class::C3;
+
+ package Test::D;
+ use base 'Test::O';
+ use Class::C3;
+
+ sub O_or_D { 'Test::D' }
+ sub C_or_D { 'Test::D' }
+
+ package Test::C;
+ use base ('Test::D', 'Test::F');
+ use Class::C3;
+
+ sub C_or_D { 'Test::C' }
+
+ package Test::B;
+ use base ('Test::E', 'Test::D');
+ use Class::C3;
+
+ package Test::A;
+ use base ('Test::B', 'Test::C');
+ use Class::C3;
+}
+
+is_deeply(
+ [ Class::C3::calculateMRO('Test::A') ],
+ [ qw(Test::A Test::B Test::E Test::C Test::D Test::F Test::O) ],
+ '... got the right MRO for Test::A');
+
+is(Test::A->O_or_D, 'Test::D', '... got the right method dispatch');
+is(Test::A->O_or_F, 'Test::F', '... got the right method dispatch');
+
+# NOTE:
+# this test is particularly interesting because the p5 dispatch
+# would actually call Test::D before Test::C and Test::D is a
+# subclass of Test::C
+is(Test::A->C_or_D, 'Test::C', '... got the right method dispatch');