1 files changed, 17 insertions, 0 deletions
diff --git a/tests/auto/corelib/tools/qhash/tst_qhash.cpp b/tests/auto/corelib/tools/qhash/tst_qhash.cpp
index 11e7237ba4..50c2b0d84e 100644
--- a/tests/auto/corelib/tools/qhash/tst_qhash.cpp
+++ b/tests/auto/corelib/tools/qhash/tst_qhash.cpp
@@ -101,6 +101,8 @@ private slots:
     void QTBUG98265();
 
     void detachAndReferences();
+
+    void lookupUsingKeyIterator();
 };
 
 struct IdentityTracker {
@@ -2699,5 +2701,20 @@ void tst_QHash::detachAndReferences()
 #endif
 }
 
+void tst_QHash::lookupUsingKeyIterator()
+{
+    QHash<QString, QString> hash;
+    hash.reserve(1);
+    qsizetype minCapacity = hash.capacity();
+    // Beholden to internal implementation details:
+    qsizetype rehashLimit = minCapacity == 64 ? 63 : 8;
+
+    for (char16_t c = u'a'; c <= u'a' + rehashLimit; ++c)
+        hash.insert(QString(QChar(c)), u"h"_qs);
+
+    for (auto it = hash.keyBegin(), end = hash.keyEnd(); it != end; ++it)
+        QVERIFY(!hash[*it].isEmpty());
+}
+
 QTEST_APPLESS_MAIN(tst_QHash)
 #include "tst_qhash.moc"