def METHOD_NAME(self):
    did = "Av63wJYM7xYR4AiygYq4c3"
    verkey = "6QSduYdf8Bi6t8PfNm5vNomGWDtXhmMmTRzaciudBXYJ"
    assert test_module.did_is_self_certified(did, verkey)
    verkey = "~PKAYz8Ev4yoQgr2LaMAWFx"
    assert test_module.did_is_self_certified(did, verkey)
    verkey = "ABUF7uxYTxZ6qYdZ4G9e1Gi"
    assert not test_module.did_is_self_certified(did, verkey)
    did = "6YnVN5Qdb6mqimTIQcQmSXrHXKdTEdRn5YHZReezUTvta"
    verkey = "6QSduYdf8Bi6t8PfNm5vNomGWDtXhmMmTRzaciudBXYJ"
    assert not test_module.did_is_self_certified(did, verkey)