On 24.11.2020 13:04, Vladimir Sementsov-Ogievskiy wrote:
23.11.2020 18:44, Andrey Shinkevich wrote:
This patch paves the way for the one that follows. The following patch
makes the QMP monitor to read up to 4K from stdin at once. That results
in running the bash 'sleep' command before the _qemu_proc_exec() starts

But how? Before _qemu_proc_exec() starts, qemu monitor is not runnning,
and its new behavior can't influence..


I am not a bash expert to explain 'how' but this workaround works. It's just a test. Maybe other colleagues can say.

If bash subshell work in unpredictable way, may be better is refactor test
to send commands one by one with help of _send_qemu_cmd. Then sleep will
be natively executed between sending commands.


Or maybe write a similar test case in Python if Kevin agrees.

in subshell. Another 'sleep' command with an unobtrusive 'query-status'
plays as a workaround.

Signed-off-by: Andrey Shinkevich <andrey.shinkev...@virtuozzo.com>
---
  tests/qemu-iotests/247     | 2 ++
  tests/qemu-iotests/247.out | 1 +
  2 files changed, 3 insertions(+)

diff --git a/tests/qemu-iotests/247 b/tests/qemu-iotests/247
index 87e37b3..7d316ec 100755
--- a/tests/qemu-iotests/247
+++ b/tests/qemu-iotests/247
@@ -59,6 +59,8 @@ TEST_IMG="$TEST_IMG.4" _make_test_img $size
  {"execute":"block-commit",
   "arguments":{"device":"format-4", "top-node": "format-2", "base-node":"format-0", "job-id":"job0"}}
  EOF
+sleep 1
+echo '{"execute":"query-status"}'
  if [ "${VALGRIND_QEMU}" == "y" ]; then
      sleep 10
  else
diff --git a/tests/qemu-iotests/247.out b/tests/qemu-iotests/247.out
index e909e83..13d9547 100644
--- a/tests/qemu-iotests/247.out
+++ b/tests/qemu-iotests/247.out
@@ -17,6 +17,7 @@ QMP_VERSION
  {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "job0", "len": 134217728, "offset": 134217728, "speed": 0, "type": "commit"}}   {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "concluded", "id": "job0"}}   {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "null", "id": "job0"}}
+{"return": {"status": "running", "singlestep": false, "running": true}}
  {"return": {}}
  {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}}
  *** done




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