1 files changed, 61 insertions, 0 deletions
diff --git a/t/parents.t b/t/parents.t
new file mode 100644
index 0000000..825f79a
--- /dev/null
+++ b/t/parents.t
@@ -0,0 +1,61 @@
+#!/usr/bin/perl -w
+
+use strict;
+use lib 't/lib';
+use MBTest tests => 26;
+
+blib_load('Module::Build');
+
+#########################
+
+package Foo;
+sub foo;
+
+package MySub1;
+use base 'Module::Build';
+
+package MySub2;
+use base 'MySub1';
+
+package MySub3;
+use base qw(MySub2 Foo);
+
+package MyTest;
+use base 'Module::Build';
+
+package MyBulk;
+use base qw(MySub2 MyTest);
+
+package main;
+
+ok my @parents = MySub1->mb_parents;
+# There will be at least one platform class in between.
+ok @parents >= 2;
+# They should all inherit from Module::Build::Base;
+ok ! grep { !$_->isa('Module::Build::Base') } @parents;
+is $parents[0], 'Module::Build';
+is $parents[-1], 'Module::Build::Base';
+
+ok @parents = MySub2->mb_parents;
+ok @parents >= 3;
+ok ! grep { !$_->isa('Module::Build::Base') } @parents;
+is $parents[0], 'MySub1';
+is $parents[1], 'Module::Build';
+is $parents[-1], 'Module::Build::Base';
+
+ok @parents = MySub3->mb_parents;
+ok @parents >= 4;
+ok ! grep { !$_->isa('Module::Build::Base') } @parents;
+is $parents[0], 'MySub2';
+is $parents[1], 'MySub1';
+is $parents[2], 'Module::Build';
+is $parents[-1], 'Module::Build::Base';
+
+ok @parents = MyBulk->mb_parents;
+ok @parents >= 5;
+ok ! grep { !$_->isa('Module::Build::Base') } @parents;
+is $parents[0], 'MySub2';
+is $parents[1], 'MySub1';
+is $parents[2], 'Module::Build';
+is $parents[-2], 'Module::Build::Base';
+is $parents[-1], 'MyTest';