1 files changed, 55 insertions, 0 deletions
diff --git a/tests/benchmarks/corelib/kernel/qmetaenum/tst_bench_qmetaenum.cpp b/tests/benchmarks/corelib/kernel/qmetaenum/tst_bench_qmetaenum.cpp
new file mode 100644
index 0000000000..1a88c49993
--- /dev/null
+++ b/tests/benchmarks/corelib/kernel/qmetaenum/tst_bench_qmetaenum.cpp
@@ -0,0 +1,55 @@
+// Copyright (C) 2021 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Marc Mutz <marc.mutz@kdab.com>
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#include <QMetaEnum>
+#include <QTest>
+
+class tst_QMetaEnum: public QObject
+{
+    Q_OBJECT
+public:
+    using QObject::QObject;
+
+private Q_SLOTS:
+    void valueToKeys_data();
+    void valueToKeys();
+    void keysToValue_data() { valueToKeys_data(); }
+    void keysToValue();
+};
+
+void tst_QMetaEnum::valueToKeys_data()
+{
+    QTest::addColumn<int>("buttons");
+    QTest::addColumn<QByteArray>("string");
+    // Qt::MouseButtons has at least 24 enumerators, so it's a good performance test
+    const auto me = QMetaEnum::fromType<Qt::MouseButtons>();
+    int accu = 0;
+    for (int i = 0; i < std::min(31, me.keyCount()); ++i) {
+        accu <<= 1;
+        accu |= 1;
+        QTest::addRow("%d bits set", i) << accu << me.valueToKeys(accu);
+    }
+}
+
+void tst_QMetaEnum::valueToKeys()
+{
+    QFETCH(const int, buttons);
+    const auto me = QMetaEnum::fromType<Qt::MouseButtons>();
+    QBENCHMARK {
+        [[maybe_unused]] auto r = me.valueToKeys(buttons);
+    }
+}
+
+void tst_QMetaEnum::keysToValue()
+{
+    QFETCH(const QByteArray, string);
+    const auto me = QMetaEnum::fromType<Qt::MouseButtons>();
+    bool ok;
+    QBENCHMARK {
+        [[maybe_unused]] auto r = me.keysToValue(string.data(), &ok);
+    }
+}
+
+QTEST_MAIN(tst_QMetaEnum)
+
+#include "tst_bench_qmetaenum.moc"