1 /* 2 * QEMU I/O channel null test 3 * 4 * Copyright (c) 2022 Red Hat, Inc. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 18 * 19 */ 20 21 #include "qemu/osdep.h" 22 #include "io/channel-null.h" 23 #include "qapi/error.h" 24 25 static gboolean test_io_channel_watch(QIOChannel *ioc, 26 GIOCondition condition, 27 gpointer opaque) 28 { 29 GIOCondition *gotcond = opaque; 30 *gotcond = condition; 31 return G_SOURCE_REMOVE; 32 } 33 34 static void test_io_channel_null_io(void) 35 { 36 g_autoptr(QIOChannelNull) null = qio_channel_null_new(); 37 char buf[1024]; 38 GIOCondition gotcond = 0; 39 Error *local_err = NULL; 40 41 g_assert(qio_channel_write(QIO_CHANNEL(null), 42 "Hello World", 11, 43 &error_abort) == 11); 44 45 g_assert(qio_channel_read(QIO_CHANNEL(null), 46 buf, sizeof(buf), 47 &error_abort) == 0); 48 49 qio_channel_add_watch(QIO_CHANNEL(null), 50 G_IO_IN, 51 test_io_channel_watch, 52 &gotcond, 53 NULL); 54 55 g_main_context_iteration(NULL, false); 56 57 g_assert(gotcond == G_IO_IN); 58 59 qio_channel_add_watch(QIO_CHANNEL(null), 60 G_IO_IN | G_IO_OUT, 61 test_io_channel_watch, 62 &gotcond, 63 NULL); 64 65 g_main_context_iteration(NULL, false); 66 67 g_assert(gotcond == (G_IO_IN | G_IO_OUT)); 68 69 qio_channel_close(QIO_CHANNEL(null), &error_abort); 70 71 g_assert(qio_channel_write(QIO_CHANNEL(null), 72 "Hello World", 11, 73 &local_err) == -1); 74 g_assert_nonnull(local_err); 75 76 g_clear_pointer(&local_err, error_free); 77 78 g_assert(qio_channel_read(QIO_CHANNEL(null), 79 buf, sizeof(buf), 80 &local_err) == -1); 81 g_assert_nonnull(local_err); 82 83 g_clear_pointer(&local_err, error_free); 84 } 85 86 int main(int argc, char **argv) 87 { 88 module_call_init(MODULE_INIT_QOM); 89 90 g_test_init(&argc, &argv, NULL); 91 92 g_test_add_func("/io/channel/null/io", test_io_channel_null_io); 93 94 return g_test_run(); 95 } 96