tst_QEventDispatcher autotests fail on macOS 10.12

/Users/qt/work/qt/qtbase/tests/auto/corelib/kernel/qeventdispatcher/target_wrapper.sh  ./tst_qeventdispatcher -o /Users/qt/work/testresults/tests/auto/corelib/kernel/qeventdispatcher342080410,xml -o -,txt
 ********* Start testing of tst_QEventDispatcher *********
 Config: Using QtTest library 5.9.1, Qt 5.9.1 (x86_64-little_endian-lp64 shared (dynamic) release build; by Clang 8.0.0 (clang-800.0.42.1) (Apple))
 PASS   : tst_QEventDispatcher::initTestCase()
 FAIL!  : tst_QEventDispatcher::registerTimer() QTestLib: This test case check ("(((receivedEventType) == (int(QEvent::Timer))))") failed because the requested timeout (20 ms) was too short, 20 ms would have been sufficient this time.
    Loc: [tst_qeventdispatcher.cpp(139)]
 FAIL!  : tst_QEventDispatcher::sendPostedEvents(WaitForMoreEvents) Compared values are not the same
    Actual   (receivedEventType): 1
    Expected (int(QEvent::User)): 1000
    Loc: [tst_qeventdispatcher.cpp(194)]
 FAIL!  : tst_QEventDispatcher::sendPostedEvents(AllEvents) Compared values are not the same
    Actual   (receivedEventType): 1
    Expected (int(QEvent::User)): 1000
    Loc: [tst_qeventdispatcher.cpp(194)]
 PASS   : tst_QEventDispatcher::processEventsOnlySendsQueuedEvents()
 PASS   : tst_QEventDispatcher::cleanupTestCase()
 Totals: 3 passed, 3 failed, 0 skipped, 0 blacklisted, 148ms
 ********* Finished testing of tst_QEventDispatcher *********