--- /dev/null
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use Test::More tests => 5;
+
+BEGIN {
+ use_ok('Class::C3');
+}
+
+{
+ package Diamond_A;
+ use Class::C3;
+ sub hello { 'Diamond_A::hello' }
+}
+{
+ package Diamond_B;
+ use base 'Diamond_A';
+ use Class::C3;
+}
+{
+ package Diamond_C;
+ use Class::C3;
+ use base 'Diamond_A';
+
+ sub hello { 'Diamond_C::hello' }
+}
+{
+ package Diamond_D;
+ use base ('Diamond_B', 'Diamond_C');
+ use Class::C3;
+}
+
+is_deeply(
+ [ Class::C3::calculateMRO('Diamond_D') ],
+ [ qw(Diamond_D Diamond_B Diamond_C Diamond_A) ],
+ '... got the right MRO for Diamond_D');
+
+is(Diamond_D->hello, 'Diamond_C::hello', '... method resolved itself as expected');
+is(Diamond_D->can('hello')->(), 'Diamond_C::hello', '... can(method) resolved itself as expected');
+
+is(UNIVERSAL::can("Diamond_D", 'hello')->(), 'Diamond_C::hello', '... can(method) resolved itself as expected');
\ No newline at end of file