import some mro tests

[gitmo/Class-C3-XS.git] / t / 01_MRO.t

diff --git a/t/01_MRO.t b/t/01_MRO.t
new file mode 100644 (file)
index 0000000..32d99a2
--- /dev/null
+++ b/t/01_MRO.t
@@ -0,0 +1,44 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use Test::More tests => 2;
+
+BEGIN {
+    use_ok('Class::C3::XS');
+}
+
+=pod
+
+This tests the classic diamond inheritence pattern.
+
+   <A>
+  /   \
+<B>   <C>
+  \   /
+   <D>
+
+=cut
+
+{
+    package Diamond_A;
+    our @ISA = qw//;
+}
+{
+    package Diamond_B;
+    use base 'Diamond_A';
+}
+{
+    package Diamond_C;
+    use base 'Diamond_A';     
+}
+{
+    package Diamond_D;
+    use base ('Diamond_B', 'Diamond_C');
+}
+
+is_deeply(
+    [ Class::C3::XS::calculateMRO('Diamond_D') ],
+    [ qw(Diamond_D Diamond_B Diamond_C Diamond_A) ],
+    '... got the right MRO for Diamond_D');