Function TestApplyNoRvalueCopyImpl

library/cpp/threading/future/future_ut.cpp:591–610

        template <typename T>
        void TestApplyNoRvalueCopyImpl() {
            size_t numCopies = 0;
            TCopyCounter copyCounter(&numCopies);

            auto promise = MakePromise<T>();

            const auto future = promise.GetFuture().Apply(
                [copyCounter = std::move(copyCounter)] (const auto&) {}
            );

            if constexpr (std::is_same_v<T, void>) {
                promise.SetValue();
            } else {
                promise.SetValue(T());
            }

            future.GetValueSync();

            UNIT_ASSERT_VALUES_EQUAL(numCopies, 0);
        }

        Y_UNIT_TEST(ApplyNoRvalueCopy) {
            TestApplyNoRvalueCopyImpl<void>();