6 use Test::More tests => 11;
9 use lib 'opt', '../opt', '..';
11 # uncomment this line, and re-run the
12 # test to see the normal p5 dispatch order
13 #$Class::C3::TURN_OFF_C3 = 1;
18 This tests the classic diamond inheritence pattern.
31 sub bar { 'Diamond_A::bar' }
32 sub baz { 'Diamond_A::baz' }
38 sub baz { 'Diamond_B::baz => ' . (shift)->next::method() }
44 sub foo { 'Diamond_C::foo' }
45 sub buz { 'Diamond_C::buz' }
47 sub woz { 'Diamond_C::woz' }
48 sub maybe { 'Diamond_C::maybe' }
52 use base ('Diamond_B', 'Diamond_C');
54 sub foo { 'Diamond_D::foo => ' . (shift)->next::method() }
55 sub bar { 'Diamond_D::bar => ' . (shift)->next::method() }
56 sub buz { 'Diamond_D::buz => ' . (shift)->baz() }
57 sub fuz { 'Diamond_D::fuz => ' . (shift)->next::method() }
59 sub woz { 'Diamond_D::woz can => ' . ((shift)->next::can() ? 1 : 0) }
60 sub noz { 'Diamond_D::noz can => ' . ((shift)->next::can() ? 1 : 0) }
62 sub maybe { 'Diamond_D::maybe => ' . ((shift)->maybe::next::method() || 0) }
63 sub moybe { 'Diamond_D::moybe => ' . ((shift)->maybe::next::method() || 0) }
67 Class::C3::initialize();
70 [ Class::C3::calculateMRO('Diamond_D') ],
71 [ qw(Diamond_D Diamond_B Diamond_C Diamond_A) ],
72 '... got the right MRO for Diamond_D');
74 is(Diamond_D->foo, 'Diamond_D::foo => Diamond_C::foo', '... skipped B and went to C correctly');
75 is(Diamond_D->bar, 'Diamond_D::bar => Diamond_A::bar', '... skipped B & C and went to A correctly');
76 is(Diamond_D->baz, 'Diamond_B::baz => Diamond_A::baz', '... called B method, skipped C and went to A correctly');
77 is(Diamond_D->buz, 'Diamond_D::buz => Diamond_B::baz => Diamond_A::baz', '... called D method dispatched to , different method correctly');
78 eval { Diamond_D->fuz };
79 like($@, qr/^No next::method 'fuz' found for Diamond_D/, '... cannot re-dispatch to a method which is not there');
81 is(Diamond_D->woz, 'Diamond_D::woz can => 1', '... can re-dispatch figured out correctly');
82 is(Diamond_D->noz, 'Diamond_D::noz can => 0', '... cannot re-dispatch figured out correctly');
84 is(Diamond_D->maybe, 'Diamond_D::maybe => Diamond_C::maybe', '... redispatched D to C when it exists');
85 is(Diamond_D->moybe, 'Diamond_D::moybe => 0', '... quietly failed redispatch from D');