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  1. Qt
  2. QTBUG-67254

tst_Gestures::customGesture is flaky

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    Description

      All tst_Gestures tests are blacklisted in RHEL 7.4 already. But this one in particular is flaky on Ubuntu and openSUSE in CI. I wasn't able to reproduce the failure on my local Ubuntu 17.10.

      Example failure with manually added debug output:

      ********* Start testing of tst_Gestures *********
Config: Using QtTest library 5.11.0, Qt 5.11.0 (x86_64-little_endian-lp64 shared (dynamic) debug build; by GCC 7.3.1 20180307 [gcc-7-branch revision 258314])
PASS   : tst_Gestures::initTestCase()
QINFO  : tst_Gestures::customGesture() widget pre-show pos: QPoint(0,0) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() widget.isExposed: false
QINFO  : tst_Gestures::customGesture() widget.isExposed: false
QINFO  : tst_Gestures::customGesture() widget post-wait pos: QPoint(0,0) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() widget.isExposed: true
QINFO  : tst_Gestures::customGesture() QApplication::sendEvent: GestureWidget(0x7ffe8faa1b40) 1
QINFO  : tst_Gestures::customGesture() widget pos: QPoint(0,0) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() hotspot point: QPoint(5,5)
QINFO  : tst_Gestures::customGesture() toplevel: QWidget(0x0)
QINFO  : tst_Gestures::customGesture() possible top levels:
QINFO  : tst_Gestures::customGesture()   GestureWidget(0x7ffe8faa1b40) pos: QPoint(0,0) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() QApplication::sendEvent: GestureWidget(0x7ffe8faa1b40) 2
QINFO  : tst_Gestures::customGesture() widget pos: QPoint(0,0) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() hotspot point: QPoint(5,5)
QINFO  : tst_Gestures::customGesture() toplevel: QWidget(0x0)
QINFO  : tst_Gestures::customGesture() possible top levels:
QINFO  : tst_Gestures::customGesture()   GestureWidget(0x7ffe8faa1b40) pos: QPoint(0,0) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() QApplication::sendEvent: GestureWidget(0x7ffe8faa1b40) 3
QINFO  : tst_Gestures::customGesture() widget pos: QPoint(0,0) size: QSize(640, 480)
QWARN  : tst_Gestures::customGesture() QGestureManager::deliverEvent: could not find the target for gesture
QINFO  : tst_Gestures::customGesture() hotspot point: QPoint(5,5)
QINFO  : tst_Gestures::customGesture() toplevel: QWidget(0x0)
QINFO  : tst_Gestures::customGesture() possible top levels:
QINFO  : tst_Gestures::customGesture()   GestureWidget(0x7ffe8faa1b40) pos: QPoint(0,0) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() QApplication::sendEvent: GestureWidget(0x7ffe8faa1b40) 4
QINFO  : tst_Gestures::customGesture() widget pos: QPoint(0,0) size: QSize(640, 480)
QWARN  : tst_Gestures::customGesture() QGestureManager::deliverEvent: could not find the target for gesture
QINFO  : tst_Gestures::customGesture() hotspot point: QPoint(5,5)
QINFO  : tst_Gestures::customGesture() toplevel: QWidget(0x0)
QINFO  : tst_Gestures::customGesture() possible top levels:
QINFO  : tst_Gestures::customGesture()   GestureWidget(0x7ffe8faa1b40) pos: QPoint(0,0) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() QApplication::sendEvent: GestureWidget(0x7ffe8faa1b40) 5
QINFO  : tst_Gestures::customGesture() widget pos: QPoint(0,0) size: QSize(640, 480)
QWARN  : tst_Gestures::customGesture() QGestureManager::deliverEvent: could not find the target for gesture
QINFO  : tst_Gestures::customGesture() hotspot point: QPoint(5,5)
QINFO  : tst_Gestures::customGesture() toplevel: QWidget(0x0)
QINFO  : tst_Gestures::customGesture() possible top levels:
QINFO  : tst_Gestures::customGesture()   GestureWidget(0x7ffe8faa1b40) pos: QPoint(0,0) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() QApplication::sendEvent: GestureWidget(0x7ffe8faa1b40) 6
QINFO  : tst_Gestures::customGesture() widget pos: QPoint(0,0) size: QSize(640, 480)
QWARN  : tst_Gestures::customGesture() QGestureManager::deliverEvent: could not find the target for gesture
QINFO  : tst_Gestures::customGesture() hotspot point: QPoint(5,5)
QINFO  : tst_Gestures::customGesture() toplevel: QWidget(0x0)
QINFO  : tst_Gestures::customGesture() possible top levels:
QINFO  : tst_Gestures::customGesture()   GestureWidget(0x7ffe8faa1b40) pos: QPoint(0,0) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() widget pre-compare pos: QPoint(0,0) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() widget.isExposed: true
FAIL!  : tst_Gestures::customGesture() Compared values are not the same
   Actual   (widget.gestureEventsReceived): 0
   Expected (TotalGestureEventsCount)     : 4
   Loc: [tst_gestures.cpp(414)]
PASS   : tst_Gestures::cleanupTestCase()
Totals: 2 passed, 1 failed, 0 skipped, 0 blacklisted, 86ms
********* Finished testing of tst_Gestures *********

      Successful run with the same debut output:

      ********* Start testing of tst_Gestures *********
Config: Using QtTest library 5.11.0, Qt 5.11.0 (x86_64-little_endian-lp64 shared (dynamic) debug build; by GCC 7.3.1 20180307 [gcc-7-branch revision 258314])
PASS   : tst_Gestures::initTestCase()
QINFO  : tst_Gestures::customGesture() widget pre-show pos: QPoint(0,0) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() widget.isExposed: false
QINFO  : tst_Gestures::customGesture() widget.isExposed: false
QINFO  : tst_Gestures::customGesture() widget post-wait pos: QPoint(636,225) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() widget.isExposed: true
QINFO  : tst_Gestures::customGesture() QApplication::sendEvent: GestureWidget(0x7ffc7593bc70) 1
QINFO  : tst_Gestures::customGesture() widget pos: QPoint(636,225) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() hotspot point: QPoint(645,259)
QINFO  : tst_Gestures::customGesture() toplevel: GestureWidget(0x7ffc7593bc70)
QINFO  : tst_Gestures::customGesture() child under hotspot: QWidget(0x0)
QINFO  : tst_Gestures::customGesture() possible top levels:
QINFO  : tst_Gestures::customGesture()   GestureWidget(0x7ffc7593bc70) pos: QPoint(636,225) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() QApplication::sendEvent: GestureWidget(0x7ffc7593bc70) 2
QINFO  : tst_Gestures::customGesture() widget pos: QPoint(636,225) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() hotspot point: QPoint(645,259)
QINFO  : tst_Gestures::customGesture() toplevel: GestureWidget(0x7ffc7593bc70)
QINFO  : tst_Gestures::customGesture() child under hotspot: QWidget(0x0)
QINFO  : tst_Gestures::customGesture() possible top levels:
QINFO  : tst_Gestures::customGesture()   GestureWidget(0x7ffc7593bc70) pos: QPoint(636,225) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() QApplication::sendEvent: GestureWidget(0x7ffc7593bc70) 3
QINFO  : tst_Gestures::customGesture() widget pos: QPoint(636,225) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() hotspot point: QPoint(645,259)
QINFO  : tst_Gestures::customGesture() toplevel: GestureWidget(0x7ffc7593bc70)
QINFO  : tst_Gestures::customGesture() child under hotspot: QWidget(0x0)
QINFO  : tst_Gestures::customGesture() possible top levels:
QINFO  : tst_Gestures::customGesture()   GestureWidget(0x7ffc7593bc70) pos: QPoint(636,225) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() QApplication::sendEvent: GestureWidget(0x7ffc7593bc70) 4
QINFO  : tst_Gestures::customGesture() widget pos: QPoint(636,225) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() hotspot point: QPoint(645,259)
QINFO  : tst_Gestures::customGesture() toplevel: GestureWidget(0x7ffc7593bc70)
QINFO  : tst_Gestures::customGesture() child under hotspot: QWidget(0x0)
QINFO  : tst_Gestures::customGesture() possible top levels:
QINFO  : tst_Gestures::customGesture()   GestureWidget(0x7ffc7593bc70) pos: QPoint(636,225) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() QApplication::sendEvent: GestureWidget(0x7ffc7593bc70) 5
QINFO  : tst_Gestures::customGesture() widget pos: QPoint(636,225) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() hotspot point: QPoint(645,259)
QINFO  : tst_Gestures::customGesture() toplevel: GestureWidget(0x7ffc7593bc70)
QINFO  : tst_Gestures::customGesture() child under hotspot: QWidget(0x0)
QINFO  : tst_Gestures::customGesture() possible top levels:
QINFO  : tst_Gestures::customGesture()   GestureWidget(0x7ffc7593bc70) pos: QPoint(636,225) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() QApplication::sendEvent: GestureWidget(0x7ffc7593bc70) 6
QINFO  : tst_Gestures::customGesture() widget pos: QPoint(636,225) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() hotspot point: QPoint(645,259)
QINFO  : tst_Gestures::customGesture() toplevel: GestureWidget(0x7ffc7593bc70)
QINFO  : tst_Gestures::customGesture() child under hotspot: QWidget(0x0)
QINFO  : tst_Gestures::customGesture() possible top levels:
QINFO  : tst_Gestures::customGesture()   GestureWidget(0x7ffc7593bc70) pos: QPoint(636,225) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() widget pre-compare pos: QPoint(636,225) size: QSize(640, 480)
QINFO  : tst_Gestures::customGesture() widget.isExposed: true
PASS   : tst_Gestures::customGesture()
PASS   : tst_Gestures::cleanupTestCase()
Totals: 3 passed, 0 failed, 0 skipped, 0 blacklisted, 77ms
********* Finished testing of tst_Gestures *********

      Grafana statistics: https://testresults.qt.io/grafana/d/000000009/coin-single-test-details?orgId=1&var-project=qt%2Fqtbase&var-testcase=tests%2Fauto%2Fother%2Fgestures&var-testfunction=customGesture&var-branch=5.11&var-branch=dev&var-inter=24h

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          is covered by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-105177 Duplicate XCB_EXPOSE events create flakiness in many tests

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Reported
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-46051 tst_gestures fails on OpenSuSE

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
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              jimis Dimitrios Apostolou
              kari.oikarinen Kari Oikarinen
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                Resolved:

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