diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/auto/widgets/dialogs/qprogressdialog/tst_qprogressdialog.cpp | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tests/auto/widgets/dialogs/qprogressdialog/tst_qprogressdialog.cpp b/tests/auto/widgets/dialogs/qprogressdialog/tst_qprogressdialog.cpp index 6f527e7b6b..2149ee7c44 100644 --- a/tests/auto/widgets/dialogs/qprogressdialog/tst_qprogressdialog.cpp +++ b/tests/auto/widgets/dialogs/qprogressdialog/tst_qprogressdialog.cpp @@ -53,6 +53,7 @@ private Q_SLOTS: void QTBUG_31046(); void settingCustomWidgets(); void i18n(); + void setValueReentrancyGuard(); }; void tst_QProgressDialog::cleanup() @@ -291,5 +292,28 @@ void tst_QProgressDialog::i18n() QVERIFY(!btn->text().startsWith(xxx)); } +void tst_QProgressDialog::setValueReentrancyGuard() +{ + // Tests setValue() of window modal QProgressBar with + // Qt::QueuedConnection: + // This test crashes with a stack overflow if the boolean + // guard "processingEvents" that prevents reentranct calls + // to QCoreApplication::processEvents() within setValue() + // has not been implemented + + constexpr int steps = 100; // Should be at least 50 to test for crash + + QProgressDialog dlg("Testing setValue reentrancy guard...", QString(), 0, steps); + dlg.setWindowModality(Qt::WindowModal); + dlg.setMinimumDuration(0); + dlg.setAutoReset(false); + + // Simulate a quick work loop + for (int i = 0; i <= steps; ++i) + QMetaObject::invokeMethod(&dlg, "setValue", Qt::QueuedConnection, Q_ARG(int, i)); + + QTRY_COMPARE(dlg.value(), steps); +} + QTEST_MAIN(tst_QProgressDialog) #include "tst_qprogressdialog.moc" |