test/hotspot/gtest/memory/test_chunkManager.cpp

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 * 2 along with this work; if not, write to the Free Software Foundation,
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#include "precompiled.hpp"
#include "memory/metaspace/chunkManager.hpp"
#include "memory/metaspace/metaspaceCommon.hpp"

// The test function is only available in debug builds
#ifdef ASSERT

#include "unittest.hpp"

using namespace metaspace;

TEST(ChunkManager, list_index) {

  // Test previous bug where a query for a humongous class metachunk,
  // incorrectly matched the non-class medium metachunk size.
  {
    ChunkManager manager(true);

    ASSERT_TRUE(MediumChunk > ClassMediumChunk) << "Precondition for test";

    ChunkIndex index = manager.list_index(MediumChunk);

    ASSERT_TRUE(index == HumongousIndex) <<
        "Requested size is larger than ClassMediumChunk,"
        " so should return HumongousIndex. Got index: " << index;
  }

  // Check the specified sizes as well.
  {
    ChunkManager manager(true);
    ASSERT_TRUE(manager.list_index(ClassSpecializedChunk) == SpecializedIndex);
    ASSERT_TRUE(manager.list_index(ClassSmallChunk) == SmallIndex);
    ASSERT_TRUE(manager.list_index(ClassMediumChunk) == MediumIndex);
    ASSERT_TRUE(manager.list_index(ClassMediumChunk + ClassSpecializedChunk) == HumongousIndex);
  }
  {
    ChunkManager manager(false);
    ASSERT_TRUE(manager.list_index(SpecializedChunk) == SpecializedIndex);
    ASSERT_TRUE(manager.list_index(SmallChunk) == SmallIndex);
    ASSERT_TRUE(manager.list_index(MediumChunk) == MediumIndex);
    ASSERT_TRUE(manager.list_index(MediumChunk + SpecializedChunk) == HumongousIndex);
  }

}

#endif // ASSERT