Use the following Weld tests as a template:

org.jboss.weld.tests.specialization.extension.MultipleSpecializedClassesTest
org.jboss.weld.tests.specialization.modular.SpecializationTest1
org.jboss.weld.tests.specialization.modular.SpecializationTest2
org.jboss.weld.tests.specialization.modular.SpecializationTest3
org.jboss.weld.tests.specialization.modular.SpecializationTest4
org.jboss.weld.tests.specialization.extension.veto.UsingVetoToPreventInconsistentSpecializationTest

Furthermore, consider adding following tests, which are not compliant with the current specification but are aligned with the expected outcome of https://issues.jboss.org/browse/CDI-238

org.jboss.weld.tests.specialization.modular.EarSpecializationTest