1 files changed, 2 insertions, 0 deletions
diff --git a/tests/auto/corelib/tools/qbytearray/tst_qbytearray.cpp b/tests/auto/corelib/tools/qbytearray/tst_qbytearray.cpp
index 52e1850c87..8670e4b3ef 100644
--- a/tests/auto/corelib/tools/qbytearray/tst_qbytearray.cpp
+++ b/tests/auto/corelib/tools/qbytearray/tst_qbytearray.cpp
@@ -2022,6 +2022,8 @@ void tst_QByteArray::toUpperLower()
     QFETCH(QByteArray, input);
     QFETCH(QByteArray, upper);
     QFETCH(QByteArray, lower);
+    QCOMPARE(lower.toLower(), lower);
+    QCOMPARE(upper.toUpper(), upper);
     QCOMPARE(input.toUpper(), upper);
     QCOMPARE(input.toLower(), lower);
 }