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#include "mkql_alloc.h"

#include <library/cpp/testing/unittest/registar.h>

namespace NKikimr {
namespace NMiniKQL {

Y_UNIT_TEST_SUITE(TMiniKQLAllocTest) {
    Y_UNIT_TEST(TestPagedArena) {
        TAlignedPagePool pagePool(__LOCATION__);

        {
            TPagedArena arena(&pagePool);
            auto p1 = arena.Alloc(10);
            auto p2 = arena.Alloc(20);
            auto p3 = arena.Alloc(100000);
            auto p4 = arena.Alloc(30);
            arena.Clear();
            auto p5 = arena.Alloc(40);
            Y_UNUSED(p1);
            Y_UNUSED(p2);
            Y_UNUSED(p3);
            Y_UNUSED(p4);
            Y_UNUSED(p5);

            TPagedArena arena2 = std::move(arena);
            auto p6 = arena2.Alloc(50);
            Y_UNUSED(p6);
        }
    }

    Y_UNIT_TEST(TestDeallocated) {
        TScopedAlloc alloc(__LOCATION__);
        void* p1 = TWithDefaultMiniKQLAlloc::AllocWithSize(10);
        void* p2 = TWithDefaultMiniKQLAlloc::AllocWithSize(20);
        UNIT_ASSERT_VALUES_EQUAL(alloc.Ref().GetUsed(), TAlignedPagePool::POOL_PAGE_SIZE);
        UNIT_ASSERT_VALUES_EQUAL(alloc.Ref().GetDeallocatedInPages(), 0);
        UNIT_ASSERT_VALUES_EQUAL(alloc.Ref().GetFreePageCount(), 0);
        TWithDefaultMiniKQLAlloc::FreeWithSize(p1, 10);
        UNIT_ASSERT_VALUES_EQUAL(alloc.Ref().GetUsed(), TAlignedPagePool::POOL_PAGE_SIZE);
        UNIT_ASSERT_VALUES_EQUAL(alloc.Ref().GetDeallocatedInPages(), 10);
        UNIT_ASSERT_VALUES_EQUAL(alloc.Ref().GetFreePageCount(), 0);
        TWithDefaultMiniKQLAlloc::FreeWithSize(p2, 20);
        UNIT_ASSERT_VALUES_EQUAL(alloc.Ref().GetUsed(), 0);
        UNIT_ASSERT_VALUES_EQUAL(alloc.Ref().GetDeallocatedInPages(), 0);
        UNIT_ASSERT_VALUES_EQUAL(alloc.Ref().GetFreePageCount(), 1);
        p1 = TWithDefaultMiniKQLAlloc::AllocWithSize(10);
        UNIT_ASSERT_VALUES_EQUAL(alloc.Ref().GetUsed(), TAlignedPagePool::POOL_PAGE_SIZE);
        UNIT_ASSERT_VALUES_EQUAL(alloc.Ref().GetDeallocatedInPages(), 0);
        UNIT_ASSERT_VALUES_EQUAL(alloc.Ref().GetFreePageCount(), 0);
        TWithDefaultMiniKQLAlloc::FreeWithSize(p1, 10);
        UNIT_ASSERT_VALUES_EQUAL(alloc.Ref().GetUsed(), 0);
        UNIT_ASSERT_VALUES_EQUAL(alloc.Ref().GetDeallocatedInPages(), 0);
        UNIT_ASSERT_VALUES_EQUAL(alloc.Ref().GetFreePageCount(), 1);
    }

    Y_UNIT_TEST(FreeInWrongAllocator) {
        if (true) {
            return;
        }
        TScopedAlloc alloc1(__LOCATION__);
        void* p1 = TWithDefaultMiniKQLAlloc::AllocWithSize(10);
        void* p2 = TWithDefaultMiniKQLAlloc::AllocWithSize(10);
        {
            TScopedAlloc alloc2(__LOCATION__);
            TWithDefaultMiniKQLAlloc::FreeWithSize(p1, 10);
        }
        TWithDefaultMiniKQLAlloc::FreeWithSize(p2, 10);
    }
    Y_UNIT_TEST(InitiallyAcqured) {
        {
            TScopedAlloc alloc(__LOCATION__);
            UNIT_ASSERT_VALUES_EQUAL(true, alloc.IsAttached());
            {
                auto guard = Guard(alloc);
                UNIT_ASSERT_VALUES_EQUAL(true, alloc.IsAttached());
            }
            UNIT_ASSERT_VALUES_EQUAL(true, alloc.IsAttached());
        }
        {
            TScopedAlloc alloc(__LOCATION__, TAlignedPagePoolCounters(), false, false);
            UNIT_ASSERT_VALUES_EQUAL(false, alloc.IsAttached());
            {
                auto guard = Guard(alloc);
                UNIT_ASSERT_VALUES_EQUAL(true, alloc.IsAttached());
            }
            UNIT_ASSERT_VALUES_EQUAL(false, alloc.IsAttached());
        }
    }
}

}
}