diff options
| -rw-r--r-- | tests/libqtest.c | 8 | ||||
| -rw-r--r-- | tests/test-qga.c | 41 |
2 files changed, 42 insertions, 7 deletions
diff --git a/tests/libqtest.c b/tests/libqtest.c index 512c150266..84ecbd2bd8 100644 --- a/tests/libqtest.c +++ b/tests/libqtest.c @@ -446,6 +446,14 @@ void qmp_fd_sendv(int fd, const char *fmt, va_list ap) va_list ap_copy; QObject *qobj; + /* qobject_from_jsonv() silently eats leading 0xff as invalid + * JSON, but we want to test sending them over the wire to force + * resyncs */ + if (*fmt == '\377') { + socket_send(fd, fmt, 1); + fmt++; + } + /* Going through qobject ensures we escape strings properly. * This seemingly unnecessary copy is required in case va_list * is an array type. diff --git a/tests/test-qga.c b/tests/test-qga.c index c780f0079a..c77f241036 100644 --- a/tests/test-qga.c +++ b/tests/test-qga.c @@ -146,14 +146,30 @@ static void test_qga_sync_delimited(gconstpointer fix) QDict *ret; gchar *cmd; - cmd = g_strdup_printf("%c{'execute': 'guest-sync-delimited'," - " 'arguments': {'id': %u } }", 0xff, r); + cmd = g_strdup_printf("\xff{'execute': 'guest-sync-delimited'," + " 'arguments': {'id': %u } }", r); qmp_fd_send(fixture->fd, cmd); g_free(cmd); - v = read(fixture->fd, &c, 1); - g_assert_cmpint(v, ==, 1); - g_assert_cmpint(c, ==, 0xff); + /* + * Read and ignore garbage until resynchronized. + * + * Note that the full reset sequence would involve checking the + * response of guest-sync-delimited and repeating the loop if + * 'id' field of the response does not match the 'id' field of + * the request. Testing this fully would require inserting + * garbage in the response stream and is left as a future test + * to implement. + * + * TODO: The server shouldn't emit so much garbage (among other + * things, it loudly complains about the client's \xff being + * invalid JSON, even though it is a documented part of the + * handshake. + */ + do { + v = read(fixture->fd, &c, 1); + g_assert_cmpint(v, ==, 1); + } while (c != 0xff); ret = qmp_fd_receive(fixture->fd); g_assert_nonnull(ret); @@ -172,8 +188,19 @@ static void test_qga_sync(gconstpointer fix) QDict *ret; gchar *cmd; - cmd = g_strdup_printf("%c{'execute': 'guest-sync'," - " 'arguments': {'id': %u } }", 0xff, r); + /* + * TODO guest-sync is inherently limited: we cannot distinguish + * failure caused by reacting to garbage on the wire prior to this + * command, from failure of this actual command. Clients are + * supposed to be able to send a raw '\xff' byte to at least + * re-synchronize the server's parser prior to this command, but + * we are not in a position to test that here because (at least + * for now) it causes the server to issue an error message about + * invalid JSON. Testing of '\xff' handling is done in + * guest-sync-delimited instead. + */ + cmd = g_strdup_printf("{'execute': 'guest-sync'," + " 'arguments': {'id': %u } }", r); ret = qmp_fd(fixture->fd, cmd); g_free(cmd); |