From 91ad45061af0fe44ac5dadb5bedaf4d7a08077c8 Mon Sep 17 00:00:00 2001 From: Peter Xu Date: Fri, 9 Mar 2018 17:00:05 +0800 Subject: tests: qmp-test: verify command batching OOB introduced DROP event for flow control. This should not affect old QMP clients. Add a command batching check to make sure of it. Reviewed-by: Stefan Hajnoczi Signed-off-by: Peter Xu Message-Id: <20180309090006.10018-23-peterx@redhat.com> Reviewed-by: Eric Blake Signed-off-by: Eric Blake --- tests/qmp-test.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'tests') diff --git a/tests/qmp-test.c b/tests/qmp-test.c index d1fa1cb217..2e4b599a4c 100644 --- a/tests/qmp-test.c +++ b/tests/qmp-test.c @@ -82,6 +82,7 @@ static void test_qmp_protocol(void) QTestState *qts; const QListEntry *entry; QString *qstr; + int i; qts = qtest_init_without_qmp_handshake(common_args); @@ -139,6 +140,27 @@ static void test_qmp_protocol(void) g_assert_cmpint(qdict_get_int(resp, "id"), ==, 2); QDECREF(resp); + /* + * Test command batching. In current test OOB is not enabled, we + * should be able to run as many commands in batch as we like. + * Using 16 (>8, which is OOB queue length) to make sure OOB won't + * break existing clients. Note: this test does not control the + * scheduling of QEMU's QMP command processing threads so it may + * not really trigger batching inside QEMU. This is just a + * best-effort test. + */ + for (i = 0; i < 16; i++) { + qtest_async_qmp(qts, "{ 'execute': 'query-version' }"); + } + /* Verify the replies to make sure no command is dropped. */ + for (i = 0; i < 16; i++) { + resp = qtest_qmp_receive(qts); + /* It should never be dropped. Each of them should be a reply. */ + g_assert(qdict_haskey(resp, "return")); + g_assert(!qdict_haskey(resp, "event")); + QDECREF(resp); + } + qtest_quit(qts); } -- cgit v1.2.1