static void test_io_channel(bool async,
                            SocketAddress *listen_addr,
                            SocketAddress *connect_addr,
                            bool passFD)
{
    QIOChannel *src, *dst;
    QIOChannelTest *test;
    if (async) {
        test_io_channel_setup_async(listen_addr, connect_addr, &src, &dst);

        g_assert(!passFD ||
                 qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_FD_PASS));
        g_assert(!passFD ||
                 qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_FD_PASS));
        g_assert(qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_SHUTDOWN));
        g_assert(qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_SHUTDOWN));

        test = qio_channel_test_new();
        qio_channel_test_run_threads(test, true, src, dst);
        qio_channel_test_validate(test);

        object_unref(OBJECT(src));
        object_unref(OBJECT(dst));

        test_io_channel_setup_async(listen_addr, connect_addr, &src, &dst);

        g_assert(!passFD ||
                 qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_FD_PASS));
        g_assert(!passFD ||
                 qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_FD_PASS));
        g_assert(qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_SHUTDOWN));
        g_assert(qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_SHUTDOWN));

        test = qio_channel_test_new();
        qio_channel_test_run_threads(test, false, src, dst);
        qio_channel_test_validate(test);

        object_unref(OBJECT(src));
        object_unref(OBJECT(dst));
    } else {
        test_io_channel_setup_sync(listen_addr, connect_addr, &src, &dst);

        g_assert(!passFD ||
                 qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_FD_PASS));
        g_assert(!passFD ||
                 qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_FD_PASS));
        g_assert(qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_SHUTDOWN));
        g_assert(qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_SHUTDOWN));

        test = qio_channel_test_new();
        qio_channel_test_run_threads(test, true, src, dst);
        qio_channel_test_validate(test);

        object_unref(OBJECT(src));
        object_unref(OBJECT(dst));

        test_io_channel_setup_sync(listen_addr, connect_addr, &src, &dst);

        g_assert(!passFD ||
                 qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_FD_PASS));
        g_assert(!passFD ||
                 qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_FD_PASS));
        g_assert(qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_SHUTDOWN));
        g_assert(qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_SHUTDOWN));

        test = qio_channel_test_new();
        qio_channel_test_run_threads(test, false, src, dst);
        qio_channel_test_validate(test);

        object_unref(OBJECT(src));
        object_unref(OBJECT(dst));
    }
}
static void test_io_channel(bool async,
                            SocketAddress *listen_addr,
                            SocketAddress *connect_addr,
                            bool passFD)
{
    QIOChannel *src, *dst, *srv;
    QIOChannelTest *test;
    if (async) {
        test_io_channel_setup_async(listen_addr, connect_addr,
                                    &srv, &src, &dst);

        g_assert(!passFD ||
                 qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_FD_PASS));
        g_assert(!passFD ||
                 qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_FD_PASS));
        g_assert(qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_SHUTDOWN));
        g_assert(qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_SHUTDOWN));

        test_io_channel_socket_path_exists(listen_addr, true);

        test = qio_channel_test_new();
        qio_channel_test_run_threads(test, true, src, dst);
        qio_channel_test_validate(test);

        test_io_channel_socket_path_exists(listen_addr, true);

        /* unref without close, to ensure finalize() cleans up */

        object_unref(OBJECT(src));
        object_unref(OBJECT(dst));
        test_io_channel_socket_path_exists(listen_addr, true);

        object_unref(OBJECT(srv));
        test_io_channel_socket_path_exists(listen_addr, false);

        test_io_channel_setup_async(listen_addr, connect_addr,
                                    &srv, &src, &dst);

        g_assert(!passFD ||
                 qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_FD_PASS));
        g_assert(!passFD ||
                 qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_FD_PASS));
        g_assert(qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_SHUTDOWN));
        g_assert(qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_SHUTDOWN));

        test = qio_channel_test_new();
        qio_channel_test_run_threads(test, false, src, dst);
        qio_channel_test_validate(test);

        /* close before unref, to ensure finalize copes with already closed */

        qio_channel_close(src, &error_abort);
        qio_channel_close(dst, &error_abort);
        test_io_channel_socket_path_exists(listen_addr, true);

        object_unref(OBJECT(src));
        object_unref(OBJECT(dst));
        test_io_channel_socket_path_exists(listen_addr, true);

        qio_channel_close(srv, &error_abort);
        test_io_channel_socket_path_exists(listen_addr, false);

        object_unref(OBJECT(srv));
        test_io_channel_socket_path_exists(listen_addr, false);
    } else {
        test_io_channel_setup_sync(listen_addr, connect_addr,
                                   &srv, &src, &dst);

        g_assert(!passFD ||
                 qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_FD_PASS));
        g_assert(!passFD ||
                 qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_FD_PASS));
        g_assert(qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_SHUTDOWN));
        g_assert(qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_SHUTDOWN));

        test_io_channel_socket_path_exists(listen_addr, true);

        test = qio_channel_test_new();
        qio_channel_test_run_threads(test, true, src, dst);
        qio_channel_test_validate(test);

        test_io_channel_socket_path_exists(listen_addr, true);

        /* unref without close, to ensure finalize() cleans up */

        object_unref(OBJECT(src));
        object_unref(OBJECT(dst));
        test_io_channel_socket_path_exists(listen_addr, true);

        object_unref(OBJECT(srv));
        test_io_channel_socket_path_exists(listen_addr, false);

        test_io_channel_setup_sync(listen_addr, connect_addr,
                                   &srv, &src, &dst);

        g_assert(!passFD ||
                 qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_FD_PASS));
        g_assert(!passFD ||
                 qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_FD_PASS));
        g_assert(qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_SHUTDOWN));
        g_assert(qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_SHUTDOWN));

        test = qio_channel_test_new();
        qio_channel_test_run_threads(test, false, src, dst);
        qio_channel_test_validate(test);

        test_io_channel_socket_path_exists(listen_addr, true);

        /* close before unref, to ensure finalize copes with already closed */

        qio_channel_close(src, &error_abort);
        qio_channel_close(dst, &error_abort);
        test_io_channel_socket_path_exists(listen_addr, true);

        object_unref(OBJECT(src));
        object_unref(OBJECT(dst));
        test_io_channel_socket_path_exists(listen_addr, true);

        qio_channel_close(srv, &error_abort);
        test_io_channel_socket_path_exists(listen_addr, false);

        object_unref(OBJECT(srv));
        test_io_channel_socket_path_exists(listen_addr, false);
    }
}