ClickHouse/dbms/Common/tests/pod_array.cpp

#include <Common/PODArray.h>
#include <Core/Types.h>
#include <iostream>

#define ASSERT_CHECK(cond, res)                        \
do                                    \
{                                    \
    if (!(cond))                            \
    {                                \
        std::cerr << __FILE__ << ":" << __LINE__ << ":"        \
            << "Assertion " << #cond << " failed.\n";    \
        if ((res)) { (res) = false; }                \
    }                                \
} \
while (false)

static void test1()
{
    using namespace DB;

    static constexpr size_t initial_size = 8;
    static constexpr size_t stack_threshold = 32;
    using Array = PODArray<UInt64, initial_size, AllocatorWithStackMemory<Allocator<false>, stack_threshold>>;

    bool res = true;

    {
        Array arr;
        Array arr2;
        arr2 = std::move(arr);
    }

    {
        Array arr;

        arr.push_back(1);
        arr.push_back(2);
        arr.push_back(3);

        Array arr2;

        arr2 = std::move(arr);

        ASSERT_CHECK((arr2.size() == 3), res);
        ASSERT_CHECK((arr2[0] == 1), res);
        ASSERT_CHECK((arr2[1] == 2), res);
        ASSERT_CHECK((arr2[2] == 3), res);

        arr = std::move(arr2);

        ASSERT_CHECK((arr.size() == 3), res);
        ASSERT_CHECK((arr[0] == 1), res);
        ASSERT_CHECK((arr[1] == 2), res);
        ASSERT_CHECK((arr[2] == 3), res);
    }

    {
        Array arr;

        arr.push_back(1);
        arr.push_back(2);
        arr.push_back(3);
        arr.push_back(4);
        arr.push_back(5);

        Array arr2;

        arr2 = std::move(arr);

        ASSERT_CHECK((arr2.size() == 5), res);
        ASSERT_CHECK((arr2[0] == 1), res);
        ASSERT_CHECK((arr2[1] == 2), res);
        ASSERT_CHECK((arr2[2] == 3), res);
        ASSERT_CHECK((arr2[3] == 4), res);
        ASSERT_CHECK((arr2[4] == 5), res);

        arr = std::move(arr2);

        ASSERT_CHECK((arr.size() == 5), res);
        ASSERT_CHECK((arr[0] == 1), res);
        ASSERT_CHECK((arr[1] == 2), res);
        ASSERT_CHECK((arr[2] == 3), res);
        ASSERT_CHECK((arr[3] == 4), res);
        ASSERT_CHECK((arr[4] == 5), res);
    }

    {
        Array arr;

        arr.push_back(1);
        arr.push_back(2);
        arr.push_back(3);

        Array arr2;

        arr2.push_back(4);
        arr2.push_back(5);
        arr2.push_back(6);
        arr2.push_back(7);

        arr2 = std::move(arr);

        ASSERT_CHECK((arr2.size() == 3), res);
        ASSERT_CHECK((arr2[0] == 1), res);
        ASSERT_CHECK((arr2[1] == 2), res);
        ASSERT_CHECK((arr2[2] == 3), res);
    }

    {
        Array arr;

        arr.push_back(1);
        arr.push_back(2);
        arr.push_back(3);

        Array arr2;

        arr2.push_back(4);
        arr2.push_back(5);
        arr2.push_back(6);
        arr2.push_back(7);
        arr2.push_back(8);

        arr = std::move(arr2);

        ASSERT_CHECK((arr.size() == 5), res);
        ASSERT_CHECK((arr[0] == 4), res);
        ASSERT_CHECK((arr[1] == 5), res);
        ASSERT_CHECK((arr[2] == 6), res);
        ASSERT_CHECK((arr[3] == 7), res);
        ASSERT_CHECK((arr[4] == 8), res);
    }

    if (!res)
        std::cerr << "Some errors were found in test 1\n";
}

static void test2()
{
    using namespace DB;

    static constexpr size_t initial_size = 8;
    static constexpr size_t stack_threshold = 32;
    using Array = PODArray<UInt64, initial_size, AllocatorWithStackMemory<Allocator<false>, stack_threshold>>;

    bool res = true;

    {
        Array arr;
        Array arr2;
        arr.swap(arr2);
        arr2.swap(arr);
    }

    {
        Array arr;

        Array arr2;

        arr2.push_back(1);
        arr2.push_back(2);
        arr2.push_back(3);

        arr.swap(arr2);

        ASSERT_CHECK((arr.size() == 3), res);
        ASSERT_CHECK((arr[0] == 1), res);
        ASSERT_CHECK((arr[1] == 2), res);
        ASSERT_CHECK((arr[2] == 3), res);

        ASSERT_CHECK((arr2.empty()), res);

        arr.swap(arr2);

        ASSERT_CHECK((arr.empty()), res);

        ASSERT_CHECK((arr2.size() == 3), res);
        ASSERT_CHECK((arr2[0] == 1), res);
        ASSERT_CHECK((arr2[1] == 2), res);
        ASSERT_CHECK((arr2[2] == 3), res);
    }

    {
        Array arr;

        Array arr2;

        arr2.push_back(1);
        arr2.push_back(2);
        arr2.push_back(3);
        arr2.push_back(4);
        arr2.push_back(5);

        arr.swap(arr2);

        ASSERT_CHECK((arr.size() == 5), res);
        ASSERT_CHECK((arr[0] == 1), res);
        ASSERT_CHECK((arr[1] == 2), res);
        ASSERT_CHECK((arr[2] == 3), res);
        ASSERT_CHECK((arr[3] == 4), res);
        ASSERT_CHECK((arr[4] == 5), res);

        ASSERT_CHECK((arr2.empty()), res);

        arr.swap(arr2);

        ASSERT_CHECK((arr.empty()), res);

        ASSERT_CHECK((arr2.size() == 5), res);
        ASSERT_CHECK((arr2[0] == 1), res);
        ASSERT_CHECK((arr2[1] == 2), res);
        ASSERT_CHECK((arr2[2] == 3), res);
        ASSERT_CHECK((arr2[3] == 4), res);
        ASSERT_CHECK((arr2[4] == 5), res);
    }

    {
        Array arr;

        arr.push_back(1);
        arr.push_back(2);
        arr.push_back(3);

        Array arr2;

        arr2.push_back(4);
        arr2.push_back(5);
        arr2.push_back(6);

        arr.swap(arr2);

        ASSERT_CHECK((arr.size() == 3), res);
        ASSERT_CHECK((arr[0] == 4), res);
        ASSERT_CHECK((arr[1] == 5), res);
        ASSERT_CHECK((arr[2] == 6), res);

        ASSERT_CHECK((arr2.size() == 3), res);
        ASSERT_CHECK((arr2[0] == 1), res);
        ASSERT_CHECK((arr2[1] == 2), res);
        ASSERT_CHECK((arr2[2] == 3), res);

        arr.swap(arr2);

        ASSERT_CHECK((arr.size() == 3), res);
        ASSERT_CHECK((arr[0] == 1), res);
        ASSERT_CHECK((arr[1] == 2), res);
        ASSERT_CHECK((arr[2] == 3), res);

        ASSERT_CHECK((arr2.size() == 3), res);
        ASSERT_CHECK((arr2[0] == 4), res);
        ASSERT_CHECK((arr2[1] == 5), res);
        ASSERT_CHECK((arr2[2] == 6), res);
    }

    {
        Array arr;

        arr.push_back(1);
        arr.push_back(2);

        Array arr2;

        arr2.push_back(3);
        arr2.push_back(4);
        arr2.push_back(5);

        arr.swap(arr2);

        ASSERT_CHECK((arr.size() == 3), res);
        ASSERT_CHECK((arr[0] == 3), res);
        ASSERT_CHECK((arr[1] == 4), res);
        ASSERT_CHECK((arr[2] == 5), res);

        ASSERT_CHECK((arr2.size() == 2), res);
        ASSERT_CHECK((arr2[0] == 1), res);
        ASSERT_CHECK((arr2[1] == 2), res);

        arr.swap(arr2);

        ASSERT_CHECK((arr.size() == 2), res);
        ASSERT_CHECK((arr[0] == 1), res);
        ASSERT_CHECK((arr[1] == 2), res);

        ASSERT_CHECK((arr2.size() == 3), res);
        ASSERT_CHECK((arr2[0] == 3), res);
        ASSERT_CHECK((arr2[1] == 4), res);
        ASSERT_CHECK((arr2[2] == 5), res);
    }

    {
        Array arr;

        arr.push_back(1);
        arr.push_back(2);
        arr.push_back(3);

        Array arr2;

        arr2.push_back(4);
        arr2.push_back(5);
        arr2.push_back(6);
        arr2.push_back(7);
        arr2.push_back(8);

        arr.swap(arr2);

        ASSERT_CHECK((arr.size() == 5), res);
        ASSERT_CHECK((arr[0] == 4), res);
        ASSERT_CHECK((arr[1] == 5), res);
        ASSERT_CHECK((arr[2] == 6), res);
        ASSERT_CHECK((arr[3] == 7), res);
        ASSERT_CHECK((arr[4] == 8), res);

        ASSERT_CHECK((arr2.size() == 3), res);
        ASSERT_CHECK((arr2[0] == 1), res);
        ASSERT_CHECK((arr2[1] == 2), res);
        ASSERT_CHECK((arr2[2] == 3), res);

        arr.swap(arr2);

        ASSERT_CHECK((arr.size() == 3), res);
        ASSERT_CHECK((arr[0] == 1), res);
        ASSERT_CHECK((arr[1] == 2), res);
        ASSERT_CHECK((arr[2] == 3), res);

        ASSERT_CHECK((arr2.size() == 5), res);
        ASSERT_CHECK((arr2[0] == 4), res);
        ASSERT_CHECK((arr2[1] == 5), res);
        ASSERT_CHECK((arr2[2] == 6), res);
        ASSERT_CHECK((arr2[3] == 7), res);
        ASSERT_CHECK((arr2[4] == 8), res);
    }

    {
        Array arr;

        arr.push_back(1);
        arr.push_back(2);
        arr.push_back(3);
        arr.push_back(4);
        arr.push_back(5);

        Array arr2;

        arr2.push_back(6);
        arr2.push_back(7);
        arr2.push_back(8);
        arr2.push_back(9);
        arr2.push_back(10);

        arr.swap(arr2);

        ASSERT_CHECK((arr.size() == 5), res);
        ASSERT_CHECK((arr[0] == 6), res);
        ASSERT_CHECK((arr[1] == 7), res);
        ASSERT_CHECK((arr[2] == 8), res);
        ASSERT_CHECK((arr[3] == 9), res);
        ASSERT_CHECK((arr[4] == 10), res);

        ASSERT_CHECK((arr2.size() == 5), res);
        ASSERT_CHECK((arr2[0] == 1), res);
        ASSERT_CHECK((arr2[1] == 2), res);
        ASSERT_CHECK((arr2[2] == 3), res);
        ASSERT_CHECK((arr2[3] == 4), res);
        ASSERT_CHECK((arr2[4] == 5), res);

        arr.swap(arr2);

        ASSERT_CHECK((arr.size() == 5), res);
        ASSERT_CHECK((arr[0] == 1), res);
        ASSERT_CHECK((arr[1] == 2), res);
        ASSERT_CHECK((arr[2] == 3), res);
        ASSERT_CHECK((arr[3] == 4), res);
        ASSERT_CHECK((arr[4] == 5), res);

        ASSERT_CHECK((arr2.size() == 5), res);
        ASSERT_CHECK((arr2[0] == 6), res);
        ASSERT_CHECK((arr2[1] == 7), res);
        ASSERT_CHECK((arr2[2] == 8), res);
        ASSERT_CHECK((arr2[3] == 9), res);
        ASSERT_CHECK((arr2[4] == 10), res);
    }

    if (!res)
        std::cerr << "Some errors were found in test 2\n";
}

static void test3()
{
    using namespace DB;

    static constexpr size_t initial_size = 8;
    static constexpr size_t stack_threshold = 32;
    using Array = PODArray<UInt64, initial_size, AllocatorWithStackMemory<Allocator<false>, stack_threshold>>;

    bool res = true;

    {
        Array arr;
        Array arr2{std::move(arr)};
    }

    {
        Array arr;

        arr.push_back(1);
        arr.push_back(2);
        arr.push_back(3);

        Array arr2{std::move(arr)};

        ASSERT_CHECK((arr.empty()), res); // NOLINT

        ASSERT_CHECK((arr2.size() == 3), res);
        ASSERT_CHECK((arr2[0] == 1), res);
        ASSERT_CHECK((arr2[1] == 2), res);
        ASSERT_CHECK((arr2[2] == 3), res);
    }

    {
        Array arr;

        arr.push_back(1);
        arr.push_back(2);
        arr.push_back(3);
        arr.push_back(4);
        arr.push_back(5);

        Array arr2{std::move(arr)};

        ASSERT_CHECK((arr.empty()), res); // NOLINT

        ASSERT_CHECK((arr2.size() == 5), res);
        ASSERT_CHECK((arr2[0] == 1), res);
        ASSERT_CHECK((arr2[1] == 2), res);
        ASSERT_CHECK((arr2[2] == 3), res);
        ASSERT_CHECK((arr2[3] == 4), res);
        ASSERT_CHECK((arr2[4] == 5), res);
    }

    if (!res)
        std::cerr << "Some errors were found in test 3\n";
}

int main()
{
    std::cout << "test 1\n";
    test1();
    std::cout << "test 2\n";
    test2();
    std::cout << "test 3\n";
    test3();

    return 0;
}