1 files changed, 19 insertions, 0 deletions
diff --git a/tests/auto/corelib/serialization/json/tst_qtjson.cpp b/tests/auto/corelib/serialization/json/tst_qtjson.cpp
index 57a679dbc9..3a57d3b8a5 100644
--- a/tests/auto/corelib/serialization/json/tst_qtjson.cpp
+++ b/tests/auto/corelib/serialization/json/tst_qtjson.cpp
@@ -175,6 +175,7 @@ private Q_SLOTS:
     void fromToVariantConversions();
 
     void testIteratorComparison();
+    void noLeakOnNameClash();
 
 private:
     QString testDataDir;
@@ -3649,5 +3650,23 @@ void tst_QtJson::testIteratorComparison()
     QVERIFY(t.end() > t.begin());
 }
 
+void tst_QtJson::noLeakOnNameClash()
+{
+    QJsonDocument doc = QJsonDocument::fromJson("{\"\":{\"\":0},\"\":0}");
+    QVERIFY(!doc.isNull());
+    const QJsonObject obj = doc.object();
+
+    // Removed the duplicate key.
+    QCOMPARE(obj.length(), 1);
+
+    // Retained the last of the duplicates.
+    const QJsonValue val = obj.begin().value();
+    QVERIFY(val.isDouble());
+    QCOMPARE(val.toDouble(), 0.0);
+
+    // It should not leak.
+    // In particular it should not forget to deref the container for the inner object.
+}
+
 QTEST_MAIN(tst_QtJson)
 #include "tst_qtjson.moc"