1 files changed, 40 insertions, 1 deletions
diff --git a/tests/auto/qgraphicsproxywidget/tst_qgraphicsproxywidget.cpp b/tests/auto/qgraphicsproxywidget/tst_qgraphicsproxywidget.cpp
index dbc4339..1d0663a 100644
--- a/tests/auto/qgraphicsproxywidget/tst_qgraphicsproxywidget.cpp
+++ b/tests/auto/qgraphicsproxywidget/tst_qgraphicsproxywidget.cpp
@@ -178,6 +178,7 @@ private slots:
     void windowFlags_data();
     void windowFlags();
     void comboboxWindowFlags();
+    void updateAndDelete();
     void inputMethod();
 };
 
@@ -3218,6 +3219,44 @@ void tst_QGraphicsProxyWidget::comboboxWindowFlags()
     QVERIFY((static_cast<QGraphicsWidget *>(popupProxy)->windowFlags() & Qt::Popup) == Qt::Popup);
 }
 
+void tst_QGraphicsProxyWidget::updateAndDelete()
+{
+    QGraphicsScene scene;
+    QGraphicsProxyWidget *proxy = scene.addWidget(new QPushButton("Hello World"));
+    View view(&scene);
+    view.show();
+#ifdef Q_WS_X11
+    qt_x11_wait_for_window_manager(&view);
+#endif
+    QTest::qWait(200);
+
+    const QRect itemDeviceBoundingRect = proxy->deviceTransform(view.viewportTransform())
+                                         .mapRect(proxy->boundingRect()).toRect();
+    const QRegion expectedRegion = itemDeviceBoundingRect.adjusted(-2, -2, 2, 2);
+
+    view.npaints = 0;
+    view.paintEventRegion = QRegion();
+
+    // Update and hide.
+    proxy->update();
+    proxy->hide();
+    QTest::qWait(50);
+    QCOMPARE(view.npaints, 1);
+    QCOMPARE(view.paintEventRegion, expectedRegion);
+
+    proxy->show();
+    QTest::qWait(50);
+    view.npaints = 0;
+    view.paintEventRegion = QRegion();
+
+    // Update and delete.
+    proxy->update();
+    delete proxy;
+    QTest::qWait(50);
+    QCOMPARE(view.npaints, 1);
+    QCOMPARE(view.paintEventRegion, expectedRegion);
+}
+
 class InputMethod_LineEdit : public QLineEdit
 {
     bool event(QEvent *e)
@@ -3252,7 +3291,7 @@ void tst_QGraphicsProxyWidget::inputMethod()
 
         if (i)
             lineEdit->setFocus();
-            
+
         lineEdit->inputMethodEvents = 0;
         QInputMethodEvent event;
         qApp->sendEvent(proxy, &event);