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diff --git a/sources/shiboken6/tests/libsample/intwrapper.h b/sources/shiboken6/tests/libsample/intwrapper.h
new file mode 100644
index 000000000..cfda5adc7
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+++ b/sources/shiboken6/tests/libsample/intwrapper.h
@@ -0,0 +1,62 @@
+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#ifndef INTWRAPPER_H
+#define INTWRAPPER_H
+
+#include "libsamplemacros.h"
+
+// Wrapper around int for testing operators
+class LIBSAMPLE_API IntWrapper
+{
+public:
+    constexpr explicit IntWrapper(int i) noexcept : m_number(i) {}
+    int toInt() const;
+
+    IntWrapper &operator++();
+    IntWrapper operator++(int); // Postfix
+
+    IntWrapper &operator--();
+    IntWrapper operator--(int); // Postfix
+
+    friend constexpr inline bool operator==(IntWrapper lhs, IntWrapper  rhs) noexcept
+    { return lhs.m_number == rhs.m_number; }
+    friend constexpr inline bool operator!=(IntWrapper lhs, IntWrapper  rhs) noexcept
+    { return lhs.m_number != rhs.m_number; }
+    friend constexpr inline bool operator<(IntWrapper lhs, IntWrapper  rhs) noexcept
+    { return lhs.m_number < rhs.m_number; }
+    friend constexpr inline bool operator>(IntWrapper lhs, IntWrapper  rhs) noexcept
+    { return lhs.m_number > rhs.m_number; }
+    friend constexpr inline bool operator<=(IntWrapper lhs, IntWrapper  rhs) noexcept
+    { return lhs.m_number <= rhs.m_number; }
+    friend constexpr inline bool operator>=(IntWrapper lhs, IntWrapper  rhs) noexcept
+    { return lhs.m_number >= rhs.m_number; }
+
+    constexpr inline IntWrapper &operator+=(IntWrapper i);
+    constexpr inline IntWrapper &operator-=(const IntWrapper i);
+
+    friend constexpr inline IntWrapper operator+(IntWrapper lhs, IntWrapper  rhs) noexcept
+    { return IntWrapper(lhs.m_number + rhs.m_number); }
+    friend constexpr inline IntWrapper operator-(IntWrapper lhs, IntWrapper  rhs) noexcept
+    { return IntWrapper(lhs.m_number - rhs.m_number); }
+
+    // FIXME: Test spaceship operator with C++ 20:
+    // auto operator<=>(IntWrapper) const = default;
+
+private:
+    int m_number;
+};
+
+constexpr inline IntWrapper &IntWrapper::operator+=(IntWrapper i)
+{
+    m_number += i.m_number;
+    return *this;
+}
+
+constexpr inline IntWrapper &IntWrapper::operator-=(const IntWrapper i)
+{
+    m_number -= i.m_number;
+    return *this;
+}
+
+#endif // INTWRAPPER_H