Fix crash when inserting the same instance widget more than once

Task-number: QTBUG-39324
Change-Id: Ib1e0e107cd411311344aa5d85c3ca4c34211448b
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/tests/auto/widgets/itemviews/qabstractitemview/tst_qabstractitemview.cpp b/tests/auto/widgets/itemviews/qabstractitemview/tst_qabstractitemview.cpp
index daca1d1516..237d4f8a29 100644
--- a/tests/auto/widgets/itemviews/qabstractitemview/tst_qabstractitemview.cpp
+++ b/tests/auto/widgets/itemviews/qabstractitemview/tst_qabstractitemview.cpp
@@ -248,6 +248,7 @@ private slots:
     void testFocusPolicy_data();
     void testFocusPolicy();
     void QTBUG31411_noSelection();
+    void QTBUG39324_settingSameInstanceOfIndexWidget();
 };
 
 class MyAbstractItemDelegate : public QAbstractItemDelegate
@@ -1830,5 +1831,22 @@ void tst_QAbstractItemView::QTBUG31411_noSelection()
     QCOMPARE(selectionChangeSpy.count(), 0);
 }
 
+void tst_QAbstractItemView::QTBUG39324_settingSameInstanceOfIndexWidget()
+{
+    QStringList list;
+    list << "FOO" << "bar";
+    QScopedPointer<QStringListModel> model(new QStringListModel(list));
+
+    QScopedPointer<QTableView> table(new QTableView());
+    table->setModel(model.data());
+
+    QModelIndex index = model->index(0,0);
+    QLineEdit *lineEdit = new QLineEdit();
+    table->setIndexWidget(index, lineEdit);
+    table->setIndexWidget(index, lineEdit);
+    QCoreApplication::sendPostedEvents(0, QEvent::DeferredDelete);
+    table->show();
+}
+
 QTEST_MAIN(tst_QAbstractItemView)
 #include "tst_qabstractitemview.moc"