File contents:

<?php

interface BaseInterface {

}

interface SubInterface1 extends BaseInterface {

}

interface SubInterface2 extends BaseInterface {

}

class SubClass1_0 implements BaseInterface
{

}

class SubClass2_0 implements BaseInterface
{

}

class SubClass1_1 implements SubInterface1
{

}

abstract class SubClass2_1 implements SubInterface1
{

}

class SubClass1_2 implements SubInterface2
{

}

class SubClass2_2 implements SubInterface2
{

}

1. create a PHP file with above content anywhere within module directory space
2. run the php tools/build_class_map.php to rebuild class map
3. press the Reset button under the Reset Parsed and Cached System Data section in System Tools section
4. place $sub_classes = $this->Application->getSubClasses('SubInterface1'); somewhere
5. confirm, that $sub_classes array contains following classes:
   • SubClass1_1
6. place $sub_classes = $this->Application->getSubClasses('SubInterface1', false); somewhere
7. confirm, that $sub_classes array contains following classes:
   • SubClass1_1
   • SubClass2_1
8. place $sub_classes = $this->Application->getSubClasses('BaseInterface'); somewhere
9. confirm, that $sub_classes array contains following classes:
   • SubClass1_0
   • SubClass2_0
   • SubClass1_1
   • SubClass1_2
   • SubClass2_2
10. in test file change interfaces into classes
11. repeat above testing scenario (interfaces transformed into classes will also be present in results and that's normal)
12. use the getSubClasses method on a class/interface not under In-Portal (or non-existing class/interface) auto-loader control
13. confirm, that this will result in exception
14. register a replacement interface (via RegisterClasses unit config setting in any unit config) for SubInterface2 interface
15. confirm that $sub_classes = $this->Application->getSubClasses('BaseInterface');:
    • containers replaced interface
    • doesn't contain SubInterface2 interface
    • the sub-classes/sub-interfaces of replaced SubInterface2 are listed in array
    • the sub-classes/sub-interfaces of replacement interface are not listed in array