async def METHOD_NAME(self):
    request_context = RequestContext.test_context()
    mock_oob_processor = async_mock.MagicMock(
        find_oob_record_for_inbound_message=async_mock.CoroutineMock(
            return_value=async_mock.MagicMock()
        )
    )
    request_context.injector.bind_instance(OobMessageProcessor, mock_oob_processor)
    request_context.message_receipt = MessageReceipt()
    request_context.connection_record = async_mock.MagicMock()
    with async_mock.patch.object(
        test_module, "CredentialManager", autospec=True
    ) as mock_cred_mgr:
        mock_cred_mgr.return_value.receive_credential_ack = (
            async_mock.CoroutineMock()
        )
        request_context.message = CredentialAck()
        request_context.connection_ready = True
        handler = test_module.CredentialAckHandler()
        responder = MockResponder()
        await handler.handle(request_context, responder)
    mock_cred_mgr.assert_called_once_with(request_context.profile)
    mock_cred_mgr.return_value.receive_credential_ack.assert_called_once_with(
        request_context.message, request_context.connection_record.connection_id
    )
    mock_oob_processor.find_oob_record_for_inbound_message.assert_called_once_with(
        request_context
    )
    assert not responder.messages