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tests: Add tests for yank with the chardev-change case 

Add tests for yank with the chardev-change case.

Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Li Zhang <li.zhang@cloud.ionos.com>
Message-Id: <697ce111503a8bab011d21519ae0b6b07041ec9a.1617127849.git.lukasstraub2@web.de>
This commit is contained in:
Lukas Straub 2021-03-30 20:13:35 +02:00 committed by Marc-André Lureau
parent feb774ca3f
commit d3a0bb7706
3 changed files with 252 additions and 1 deletions
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1
MAINTAINERS
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@ -2823,6 +2823,7 @@ M: Lukas Straub <lukasstraub2@web.de>
S: Odd fixes
F: util/yank.c
F: migration/yank_functions*
F: tests/unit/test-yank.c
F: include/qemu/yank.h
F: qapi/yank.json

3
tests/unit/meson.build
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@ -123,7 +123,8 @@ if have_system
'test-util-sockets': ['socket-helpers.c'],
'test-base64': [],
'test-bufferiszero': [],
'test-vmstate': [migration, io]
'test-vmstate': [migration, io],
'test-yank': ['socket-helpers.c', qom, io, chardev]
}
if 'CONFIG_INOTIFY1' in config_host
tests += {'test-util-filemonitor': []}

249
tests/unit/test-yank.c Normal file
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@ -0,0 +1,249 @@
/*
* Tests for QEMU yank feature
*
* Copyright (c) Lukas Straub <lukasstraub2@web.de>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include <glib/gstdio.h>
#include "qemu/config-file.h"
#include "qemu/module.h"
#include "qemu/option.h"
#include "chardev/char-fe.h"
#include "sysemu/sysemu.h"
#include "qapi/error.h"
#include "qapi/qapi-commands-char.h"
#include "qapi/qapi-types-char.h"
#include "qapi/qapi-commands-yank.h"
#include "qapi/qapi-types-yank.h"
#include "io/channel-socket.h"
#include "socket-helpers.h"
typedef struct {
SocketAddress *addr;
bool old_yank;
bool new_yank;
bool fail;
} CharChangeTestConfig;
static int chardev_change(void *opaque)
{
return 0;
}
static bool is_yank_instance_registered(void)
{
YankInstanceList *list;
bool ret;
list = qmp_query_yank(&error_abort);
ret = !!list;
qapi_free_YankInstanceList(list);
return ret;
}
static gpointer accept_thread(gpointer data)
{
QIOChannelSocket *ioc = data;
QIOChannelSocket *cioc;
cioc = qio_channel_socket_accept(ioc, &error_abort);
object_unref(OBJECT(cioc));
return NULL;
}
static void char_change_test(gconstpointer opaque)
{
CharChangeTestConfig *conf = (gpointer) opaque;
SocketAddress *addr;
Chardev *chr;
CharBackend be;
ChardevReturn *ret;
QIOChannelSocket *ioc;
QemuThread thread;
/*
* Setup a listener socket and determine its address
* so we know the TCP port for the client later
*/
ioc = qio_channel_socket_new();
g_assert_nonnull(ioc);
qio_channel_socket_listen_sync(ioc, conf->addr, 1, &error_abort);
addr = qio_channel_socket_get_local_address(ioc, &error_abort);
g_assert_nonnull(addr);
ChardevBackend backend[2] = {
/* doesn't support yank */
{ .type = CHARDEV_BACKEND_KIND_NULL },
/* supports yank */
{
.type = CHARDEV_BACKEND_KIND_SOCKET,
.u.socket.data = &(ChardevSocket) {
.addr = &(SocketAddressLegacy) {
.type = SOCKET_ADDRESS_LEGACY_KIND_INET,
.u.inet.data = &addr->u.inet
},
.has_server = true,
.server = false
}
} };
ChardevBackend fail_backend[2] = {
/* doesn't support yank */
{
.type = CHARDEV_BACKEND_KIND_UDP,
.u.udp.data = &(ChardevUdp) {
.remote = &(SocketAddressLegacy) {
.type = SOCKET_ADDRESS_LEGACY_KIND_UNIX,
.u.q_unix.data = &(UnixSocketAddress) {
.path = (char *)""
}
}
}
},
/* supports yank */
{
.type = CHARDEV_BACKEND_KIND_SOCKET,
.u.socket.data = &(ChardevSocket) {
.addr = &(SocketAddressLegacy) {
.type = SOCKET_ADDRESS_LEGACY_KIND_INET,
.u.inet.data = &(InetSocketAddress) {
.host = (char *)"127.0.0.1",
.port = (char *)"0"
}
},
.has_server = true,
.server = false
}
} };
g_assert(!is_yank_instance_registered());
if (conf->old_yank) {
qemu_thread_create(&thread, "accept", accept_thread,
ioc, QEMU_THREAD_JOINABLE);
}
ret = qmp_chardev_add("chardev", &backend[conf->old_yank], &error_abort);
qapi_free_ChardevReturn(ret);
chr = qemu_chr_find("chardev");
g_assert_nonnull(chr);
g_assert(is_yank_instance_registered() == conf->old_yank);
qemu_chr_wait_connected(chr, &error_abort);
if (conf->old_yank) {
qemu_thread_join(&thread);
}
qemu_chr_fe_init(&be, chr, &error_abort);
/* allow chardev-change */
qemu_chr_fe_set_handlers(&be, NULL, NULL,
NULL, chardev_change, NULL, NULL, true);
if (conf->fail) {
g_setenv("QTEST_SILENT_ERRORS", "1", 1);
ret = qmp_chardev_change("chardev", &fail_backend[conf->new_yank],
NULL);
g_assert_null(ret);
g_assert(be.chr == chr);
g_assert(is_yank_instance_registered() == conf->old_yank);
g_unsetenv("QTEST_SILENT_ERRORS");
} else {
if (conf->new_yank) {
qemu_thread_create(&thread, "accept", accept_thread,
ioc, QEMU_THREAD_JOINABLE);
}
ret = qmp_chardev_change("chardev", &backend[conf->new_yank],
&error_abort);
if (conf->new_yank) {
qemu_thread_join(&thread);
}
g_assert_nonnull(ret);
g_assert(be.chr != chr);
g_assert(is_yank_instance_registered() == conf->new_yank);
}
object_unparent(OBJECT(be.chr));
object_unref(OBJECT(ioc));
qapi_free_ChardevReturn(ret);
qapi_free_SocketAddress(addr);
}
static SocketAddress tcpaddr = {
.type = SOCKET_ADDRESS_TYPE_INET,
.u.inet.host = (char *)"127.0.0.1",
.u.inet.port = (char *)"0",
};
int main(int argc, char **argv)
{
bool has_ipv4, has_ipv6;
qemu_init_main_loop(&error_abort);
socket_init();
g_test_init(&argc, &argv, NULL);
if (socket_check_protocol_support(&has_ipv4, &has_ipv6) < 0) {
g_printerr("socket_check_protocol_support() failed\n");
goto end;
}
if (!has_ipv4) {
goto end;
}
module_call_init(MODULE_INIT_QOM);
qemu_add_opts(&qemu_chardev_opts);
g_test_add_data_func("/yank/char_change/success/to_yank",
&(CharChangeTestConfig) { .addr = &tcpaddr,
.old_yank = false,
.new_yank = true,
.fail = false },
char_change_test);
g_test_add_data_func("/yank/char_change/fail/to_yank",
&(CharChangeTestConfig) { .addr = &tcpaddr,
.old_yank = false,
.new_yank = true,
.fail = true },
char_change_test);
g_test_add_data_func("/yank/char_change/success/yank_to_yank",
&(CharChangeTestConfig) { .addr = &tcpaddr,
.old_yank = true,
.new_yank = true,
.fail = false },
char_change_test);
g_test_add_data_func("/yank/char_change/fail/yank_to_yank",
&(CharChangeTestConfig) { .addr = &tcpaddr,
.old_yank = true,
.new_yank = true,
.fail = true },
char_change_test);
g_test_add_data_func("/yank/char_change/success/from_yank",
&(CharChangeTestConfig) { .addr = &tcpaddr,
.old_yank = true,
.new_yank = false,
.fail = false },
char_change_test);
g_test_add_data_func("/yank/char_change/fail/from_yank",
&(CharChangeTestConfig) { .addr = &tcpaddr,
.old_yank = true,
.new_yank = false,
.fail = true },
char_change_test);
end:
return g_test_run();
}