Wrote an autotest to expose a bug in the GLib event dispatcher.

Zero timers don't fire on the first pass in the GLib event
dispatcher. Ideally I should fix the bug of course, but time doesn't
permit at the moment. Submitting this test instead as a "reminder".

The UNIX event dispatcher passes the test, and it also passes if
moved to the end of the slots.

Task:     259505

1 files changed, 15 insertions, 1 deletions

diff --git a/tests/auto/qtimer/tst_qtimer.cpp b/tests/auto/qtimer/tst_qtimer.cpp
index 43b755347c..8c8f1e3d33 100644
--- a/tests/auto/qtimer/tst_qtimer.cpp
+++ b/tests/auto/qtimer/tst_qtimer.cpp
@@ -73,6 +73,7 @@ public slots:
     void init();
     void cleanup();
 private slots:
+    void zeroTimer();
     void singleShotTimeout();
     void timeout();
     void livelock_data();
@@ -129,6 +130,20 @@ void tst_QTimer::cleanup()
 {
 }
 
+void tst_QTimer::zeroTimer()
+{
+    TimerHelper helper;
+    QTimer timer;
+    timer.setInterval(0);
+    timer.start();
+
+    connect(&timer, SIGNAL(timeout()), &helper, SLOT(timeout()));
+
+    QCoreApplication::processEvents();
+
+    QCOMPARE(helper.count, 1);
+}
+
 void tst_QTimer::singleShotTimeout()
 {
     TimerHelper helper;
@@ -482,4 +497,3 @@ void tst_QTimer::restartedTimerFiresTooSoon()
 
 QTEST_MAIN(tst_QTimer)
 #include "tst_qtimer.moc"
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