main/o3tl/qa/test-vector_pool.cxx

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// autogenerated file with codegen.pl

#include "preextstl.h"
#include "gtest/gtest.h"
#include "postextstl.h"

#include <o3tl/vector_pool.hxx>

using namespace ::o3tl;

class vector_pool_test : public ::testing::Test
{
public:
};

TEST_F(vector_pool_test, testPoolBasics)
{
    vector_pool<int> aPool;

    std::ptrdiff_t nIdx1 = aPool.alloc();
    std::ptrdiff_t nIdx2 = aPool.alloc();
    std::ptrdiff_t nIdx3 = aPool.alloc();

    ASSERT_TRUE(nIdx1 < nIdx2) << "allocator idx order 1";
    ASSERT_TRUE(nIdx2 < nIdx3) << "allocator idx order 2";

    aPool.free(nIdx2);
    aPool.free(nIdx3);

    nIdx2 = aPool.alloc();
    nIdx3 = aPool.alloc();

    ASSERT_TRUE(nIdx1 < nIdx3) << "allocator idx order 1 after fragmentation";
    ASSERT_TRUE(nIdx3 < nIdx2) << "allocator idx order 2 after fragmentation";
}

TEST_F(vector_pool_test, testPoolValueSemantics)
{
    vector_pool<int> aPool;

    std::ptrdiff_t nIdx1 = aPool.store(0);
    ASSERT_TRUE(aPool.get(nIdx1) == 0) << "allocator value semantics 1";

    std::ptrdiff_t nIdx2 = aPool.store(1);
    ASSERT_TRUE(aPool.get(nIdx2) == 1) << "allocator value semantics 2";

    std::ptrdiff_t nIdx3 = aPool.store(2);
    ASSERT_TRUE(aPool.get(nIdx3) == 2) << "allocator value semantics 3";

    aPool.free(nIdx2);
    aPool.free(nIdx3);

    nIdx2 = aPool.store(1);
    ASSERT_TRUE(aPool.get(nIdx2) == 1) << "allocator value semantics 2 after fragmentation";

    nIdx3 = aPool.store(2);
    ASSERT_TRUE(aPool.get(nIdx3) == 2) << "allocator value semantics 3 after fragmentation";
}