Load component synchronously in method_createQmlObject

setData() is not guaranteed to synchronously load the type. In
fact, most of the time, it doesn't. However, by adding a private
Synchronous mode to QQmlTypeLoader we can prefetch the type
synchronously and then inject it into the component.

Task-number: QTBUG-45418
Change-Id: I640f12ad20c01b778b5bc41f43574d8aea504195
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/tests/auto/qml/qqmltypeloader/tst_qqmltypeloader.cpp b/tests/auto/qml/qqmltypeloader/tst_qqmltypeloader.cpp
index 77cdaae9f0..4c5b1f7e63 100644
--- a/tests/auto/qml/qqmltypeloader/tst_qqmltypeloader.cpp
+++ b/tests/auto/qml/qqmltypeloader/tst_qqmltypeloader.cpp
@@ -43,6 +43,7 @@ class tst_QQMLTypeLoader : public QQmlDataTest
 
 private slots:
     void testLoadComplete();
+    void loadComponentSynchronously();
 };
 
 void tst_QQMLTypeLoader::testLoadComplete()
@@ -62,6 +63,16 @@ void tst_QQMLTypeLoader::testLoadComplete()
     delete window;
 }
 
+void tst_QQMLTypeLoader::loadComponentSynchronously()
+{
+    QQmlEngine engine;
+    QTest::ignoreMessage(QtWarningMsg, QRegularExpression(
+                             QLatin1String(".*nonprotocol::1:1: QtObject is not a type.*")));
+    QQmlComponent component(&engine, testFileUrl("load_synchronous.qml"));
+    QObject *o = component.create();
+    QVERIFY(o);
+}
+
 QTEST_MAIN(tst_QQMLTypeLoader)
 
 #include "tst_qqmltypeloader.moc"