6 use Test::More tests => 7;
9 use lib 'opt', '../opt', '..';
11 # uncomment this line, and re-run the
12 # test to see the normal p5 dispatch order
13 #$Class::C3::TURN_OFF_C3 = 1;
18 This tests the classic diamond inheritence pattern.
31 sub bar { 'Diamond_A::bar' }
32 sub baz { 'Diamond_A::baz' }
38 sub baz { 'Diamond_B::baz => ' . (shift)->next::method() }
44 sub foo { 'Diamond_C::foo' }
45 sub buz { 'Diamond_C::buz' }
49 use base ('Diamond_B', 'Diamond_C');
51 sub foo { 'Diamond_D::foo => ' . (shift)->next::method() }
52 sub bar { 'Diamond_D::bar => ' . (shift)->next::method() }
53 sub buz { 'Diamond_D::buz => ' . (shift)->baz() }
54 sub fuz { 'Diamond_D::fuz => ' . (shift)->next::method() }
58 Class::C3::initialize();
61 [ Class::C3::calculateMRO('Diamond_D') ],
62 [ qw(Diamond_D Diamond_B Diamond_C Diamond_A) ],
63 '... got the right MRO for Diamond_D');
65 is(Diamond_D->foo, 'Diamond_D::foo => Diamond_C::foo', '... skipped B and went to C correctly');
66 is(Diamond_D->bar, 'Diamond_D::bar => Diamond_A::bar', '... skipped B & C and went to A correctly');
67 is(Diamond_D->baz, 'Diamond_B::baz => Diamond_A::baz', '... called B method, skipped C and went to A correctly');
68 is(Diamond_D->buz, 'Diamond_D::buz => Diamond_B::baz => Diamond_A::baz', '... called D method dispatched to , different method correctly');
69 eval { Diamond_D->fuz };
70 like($@, qr/^No next::method 'fuz' found for Diamond_D/, '... cannot re-dispatch to a method which is not there');