Those are mainly:

• b) in "11.5.1. BeforeBeanDiscovery event"
• ea) in "11.5.2 - AfterTypeDiscovery event"
• bba) in "11.5.6 - ProcessAnnotatedType event"

For the first two add a test which will add AnnotatedType using BeforeBeanDiscovery#addAnnotatedType(java.lang.Class<T>, java.lang.String) and
AfterTypeDiscovery#addAnnotatedType(java.lang.Class<T>, java.lang.String) and assert that returned configurator is initialized with type and annotations of the provided class