From 0999c78ea33d71ba211b7fa90a5d88dd5b29b3fd Mon Sep 17 00:00:00 2001
From: Ulf Hermann <ulf.hermann@qt.io>
Date: Mon, 7 Jan 2019 13:13:43 +0100
Subject: [PATCH] Avoid crash in property requirements test

Pure QML types do not have a meta object hierarchy associated with them.
The test is only supposed to test C++ types, though. We can ignore the
types without meta objects.

Change-Id: I2a40bc0023f6d335c4dbdbc04818da60f47d8787
Fixes: QTBUG-72637
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
---
 .../quick/propertyrequirements/tst_propertyrequirements.cpp   | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tests/auto/quick/propertyrequirements/tst_propertyrequirements.cpp b/tests/auto/quick/propertyrequirements/tst_propertyrequirements.cpp
index fbcd53cad4..34be4d98b4 100644
--- a/tests/auto/quick/propertyrequirements/tst_propertyrequirements.cpp
+++ b/tests/auto/quick/propertyrequirements/tst_propertyrequirements.cpp
@@ -175,8 +175,10 @@ void tst_PropertyRequirements::testQmlType(TestDepth testDepth, const QQmlType &
 
     // check if this type is derived from QObject and even can have signals
     // i.e. weed out the Q_GADGET classes
-    if (inheritanceHierarchy.first()->className() != QByteArray("QObject"))
+    if (inheritanceHierarchy.isEmpty()
+        || inheritanceHierarchy.constFirst()->className() != QByteArrayLiteral("QObject")) {
         return;
+    }
 
     if (testDepth == MainTypeOnly) {
         inheritanceHierarchy.clear();