use strict;
use warnings;
use Test::More tests => 5;
BEGIN { use_ok('Class::C3::XS') }
=pod
This tests the classic diamond inheritence pattern.
<A>
/ \
<B> <C>
\ /
<D>
=cut
{
package Diamond_A;
sub hello { 'Diamond_A::hello' }
sub foo { 'Diamond_A::foo' }
}
{
package Diamond_B;
use base 'Diamond_A';
sub foo { 'Diamond_B::foo => ' . (shift)->next::method() }
}
{
package Diamond_C;
use base 'Diamond_A';
sub hello { 'Diamond_C::hello => ' . (shift)->next::method() }
sub foo { 'Diamond_C::foo => ' . (shift)->next::method() }
}
{
package Diamond_D;
use base ('Diamond_B', 'Diamond_C');
sub foo { 'Diamond_D::foo => ' . (shift)->next::method() }
}
is(Diamond_C->hello, 'Diamond_C::hello => Diamond_A::hello', '... method resolved itself as expected');
is(Diamond_C->can('hello')->('Diamond_C'),
'Diamond_C::hello => Diamond_A::hello',
'... can(method) resolved itself as expected');
is(UNIVERSAL::can("Diamond_C", 'hello')->('Diamond_C'),
'Diamond_C::hello => Diamond_A::hello',
'... can(method) resolved itself as expected');
is(Diamond_D->foo,
'Diamond_D::foo => Diamond_B::foo => Diamond_C::foo => Diamond_A::foo',
'... method foo resolved itself as expected');