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Refactoed test code.

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This commit is contained in:
David Williams 2015-03-25 17:12:11 +01:00
parent 931c6cd3ec
commit 1d24b189ca
2 changed files with 28 additions and 25 deletions
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51
tests/testvolume.cpp
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@ -468,49 +468,50 @@ void TestVolume::testPagedVolumeSamplersWithExternalBackwards()
QCOMPARE(result, static_cast<int32_t>(-993539594)); QCOMPARE(result, static_cast<int32_t>(-993539594));
} }
void TestVolume::testPagedVolumeChunkLocalAccess() int32_t TestVolume::testPagedVolumeChunkAccess(uint32_t locality)
{ {
std::mt19937 rng; std::mt19937 rng;
int32_t result = 0; int32_t result = 0;
uint16_t x = rng() % m_uChunkSideLength; uint16_t x = rng() % m_uChunkSideLength;
uint16_t y = rng() % m_uChunkSideLength; uint16_t y = rng() % m_uChunkSideLength;
uint16_t z = rng() % m_uChunkSideLength; uint16_t z = rng() % m_uChunkSideLength;
for (uint32_t ct = 0; ct < 1000000; ct++)
{
uint16_t xOffset = rng() % locality;
uint16_t yOffset = rng() % locality;
uint16_t zOffset = rng() % locality;
x += xOffset;
y += yOffset;
z += zOffset;
x %= m_uChunkSideLength;
y %= m_uChunkSideLength;
z %= m_uChunkSideLength;
int32_t voxel = m_pPagedVolumeChunk->getVoxel(x, y, z);
result = cantorTupleFunction(result, voxel);
}
return result;
}
void TestVolume::testPagedVolumeChunkLocalAccess()
{
int32_t result = 0;
QBENCHMARK QBENCHMARK
{ {
for (uint32_t ct = 0; ct < 1000000; ct++) result = testPagedVolumeChunkAccess(3); // Small value for good locality
{
uint16_t xOffset = rng() % 3;
uint16_t yOffset = rng() % 3;
uint16_t zOffset = rng() % 3;
x += xOffset;
y += yOffset;
z += zOffset;
x %= m_uChunkSideLength;
y %= m_uChunkSideLength;
z %= m_uChunkSideLength;
int32_t voxel = m_pPagedVolumeChunk->getVoxel(x, y, z);
result = cantorTupleFunction(result, voxel);
}
} }
QCOMPARE(result, static_cast<int32_t>(145244783)); QCOMPARE(result, static_cast<int32_t>(145244783));
} }
void TestVolume::testPagedVolumeChunkRandomAccess() void TestVolume::testPagedVolumeChunkRandomAccess()
{ {
std::mt19937 rng;
int32_t result = 0; int32_t result = 0;
QBENCHMARK QBENCHMARK
{ {
for (uint32_t ct = 0; ct < 1000000; ct++) result = testPagedVolumeChunkAccess(1000000); // Large value for poor locality (random access)
{
uint16_t x = rng() % m_uChunkSideLength;
uint16_t y = rng() % m_uChunkSideLength;
uint16_t z = rng() % m_uChunkSideLength;
int32_t voxel = m_pPagedVolumeChunk->getVoxel(x, y, z);
result = cantorTupleFunction(result, voxel);
}
} }
QCOMPARE(result, static_cast<int32_t>(408757678)); QCOMPARE(result, static_cast<int32_t>(-254578110));
} }
QTEST_MAIN(TestVolume) QTEST_MAIN(TestVolume)

2
tests/testvolume.h
View File

@ -61,6 +61,8 @@ private slots:
void testPagedVolumeChunkRandomAccess(); void testPagedVolumeChunkRandomAccess();
private: private:
int32_t testPagedVolumeChunkAccess(uint32_t locality);
static const uint16_t m_uChunkSideLength = 32; static const uint16_t m_uChunkSideLength = 32;
PolyVox::Region m_regVolume; PolyVox::Region m_regVolume;