File indexing completed on 2024-11-10 04:40:12

 /*
     SPDX-FileCopyrightText: 2023 Daniel Vrátil <dvratil@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "itemchangelogtest.h"
 #include "item_p.h"
 #include "itemchangelog_p.h"
 
 #include <QTest>
 
 #include <type_traits>
 
 using namespace Akonadi;
 
 void ItemChangelogTest::testDoesntCrashWhenReassigning()
 {
     auto *log = ItemChangeLog::instance();
 
     // Make the keys non-contiguous so we can trigger rehashing in the next loop
     for (int i = 0; i < 50; i += 2) {
         // We can reinrepret_cast because ItemPrivate pointer is used only
         // as an opaque key in the hash table.
         log->addedFlags(reinterpret_cast<ItemPrivate *>(i)) = {QByteArray("foo")};
     }
 
     // We will be inserting in between existing items, which will eventually trigger
     // rehashing
     for (int i = 1; i < 50; i += 2) {
         // Previously this would crash because addedFlags() would return a reference
         // to a valud stored in the hash table, which would be invalidated by rehashing
         // caused by the call to left-hand-side addedFlags().
         log->addedFlags(reinterpret_cast<ItemPrivate *>(i)) = log->addedFlags(reinterpret_cast<const ItemPrivate *>(i - 1));
     }
 }
 
 QTEST_GUILESS_MAIN(ItemChangelogTest);
 
 #include "moc_itemchangelogtest.cpp"