tst_QQmlPropertyCache: work around name chance in moc-generated code

The offsetsAndSize member was renamed to offsetsAndSize_s_ recently.
Detect the name change and use one or the other instead of failing.

Fixes: QTBUG-104523
Change-Id: Ica16a91577fd1d20352e2c8136453432acbbc8b0
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
(cherry picked from commit 5ba6e177904d5ea5f1e44bcc1b1c3ab75d63a065)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 19 insertions, 1 deletions

diff --git a/tests/auto/qml/qqmlpropertycache/tst_qqmlpropertycache.cpp b/tests/auto/qml/qqmlpropertycache/tst_qqmlpropertycache.cpp
index 7e1dc2f3e5..14af747024 100644
--- a/tests/auto/qml/qqmlpropertycache/tst_qqmlpropertycache.cpp
+++ b/tests/auto/qml/qqmlpropertycache/tst_qqmlpropertycache.cpp
@@ -572,10 +572,28 @@ class TestClassWithClassInfo : public QObject
 #define ARRAY_SIZE(arr) \
     int(sizeof(arr) / sizeof(arr[0]))
 
+template <typename T, typename = void>
+struct SizeofOffsetsAndSizes_helper
+{
+    static constexpr size_t value = sizeof(T::offsetsAndSize); // old moc
+};
+
+template <typename T>
+struct SizeofOffsetsAndSizes_helper<T, std::void_t<decltype(T::offsetsAndSizes)>>
+{
+    static constexpr size_t value = sizeof(T::offsetsAndSizes); // new moc
+};
+
+template <typename T>
+constexpr size_t sizeofOffsetsAndSizes(const T &)
+{
+    return SizeofOffsetsAndSizes_helper<T>::value;
+}
+
 #define TEST_CLASS(Class) \
     QTest::newRow(#Class) \
             << &Class::staticMetaObject << ARRAY_SIZE(qt_meta_data_##Class) \
-            << int(sizeof(qt_meta_stringdata_##Class.offsetsAndSize) / (sizeof(uint) * 2))
+            << int(sizeofOffsetsAndSizes(qt_meta_stringdata_##Class) / (sizeof(uint) * 2))
 
 Q_DECLARE_METATYPE(const QMetaObject*);