How to list simples for configurables?

Question

How should it look like in the Magento Admin, if I have added some configurable attributes and/or simple products to a configurable?

I am trying to add simples to my configurable programmatically, and do not know how to test it...

Answer 1

This is how it should look like in Magento Admin, when simple products are linked to a configurable product:

Answer 2

Create a test product manually and compare it with the programmatically created one.