def METHOD_NAME(self):
    # create the SourceTransaction object
    sourcetransaction_1 = SourceTransaction.sync_from_stripe_data(
        deepcopy(FAKE_SOURCE_TRANSACTION)
    )
    self.assertEqual(
        f"{sourcetransaction_1._get_base_stripe_dashboard_url()}sources/{sourcetransaction_1.source.id}",
        sourcetransaction_1.get_stripe_dashboard_url(),
    ),
    # create the SourceTransaction object
    fake_source_transaction = deepcopy(FAKE_SOURCE_TRANSACTION)
    fake_source_transaction["source"] = None
    sourcetransaction_2 = SourceTransaction.sync_from_stripe_data(
        fake_source_transaction
    )
    self.assertEqual("", sourcetransaction_2.get_stripe_dashboard_url()),