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Improving (making tougher) the volume unit tests.

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This commit is contained in:
David Williams 2012-12-10 23:25:17 +00:00
parent ec203c6954
commit 8a376fa396
1 changed files with 19 additions and 10 deletions
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29
tests/testvolume.cpp
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@ -27,10 +27,18 @@ freely, subject to the following restrictions:
#include "PolyVoxCore/RawVolume.h"
#include "PolyVoxCore/SimpleVolume.h"
#include <QtGlobal>
#include <QtTest>
using namespace PolyVox;
// This is used to compute a value from a list of integers. We use it to
// make sure we get the expected result from a series of volume accesses.
inline int32_t cantorTupleFunction(int32_t previousResult, int32_t value)
{
return (( previousResult + value ) * ( previousResult + value + 1 ) + value ) / 2;
}
template <typename VolumeType>
int32_t complexVolumeTest(void)
{
@ -38,13 +46,14 @@ int32_t complexVolumeTest(void)
VolumeType testVolume(Region(-57, -31, 12, 64, 96, 131)); // Deliberatly awkward size
//Fill the volume with some data
qsrand(42);
for(int z = testVolume.getEnclosingRegion().getLowerZ(); z <= testVolume.getEnclosingRegion().getUpperZ(); z++)
{
for(int y = testVolume.getEnclosingRegion().getLowerY(); y <= testVolume.getEnclosingRegion().getUpperY(); y++)
{
for(int x = testVolume.getEnclosingRegion().getLowerX(); x <= testVolume.getEnclosingRegion().getUpperX(); x++)
{
testVolume.setVoxelAt(x, y, z, x + y + z);
testVolume.setVoxelAt(x, y, z, qrand() - (RAND_MAX / 2));
}
}
}
@ -58,7 +67,7 @@ int32_t complexVolumeTest(void)
{
for(int x = testVolume.getEnclosingRegion().getLowerX(); x <= testVolume.getEnclosingRegion().getUpperX(); x++)
{
result += testVolume.getVoxel(x, y, z);
result = cantorTupleFunction(result, testVolume.getVoxel(x, y, z));
}
}
}
@ -71,7 +80,7 @@ int32_t complexVolumeTest(void)
{
for(int x = testVolume.getEnclosingRegion().getLowerX(); x <= testVolume.getEnclosingRegion().getUpperX(); x++)
{
result += testVolume.getVoxelWithWrapping(x, y, z, WrapModes::Border, 3);
result = cantorTupleFunction(result, testVolume.getVoxelWithWrapping(x, y, z, WrapModes::Border, 3));
}
}
}
@ -84,7 +93,7 @@ int32_t complexVolumeTest(void)
//Extending outside in x
for(int x = testVolume.getEnclosingRegion().getLowerX() - 2; x <= testVolume.getEnclosingRegion().getUpperX() + 4; x++)
{
result += testVolume.getVoxelWithWrapping(x, y, z, WrapModes::Clamp);
result = cantorTupleFunction(result, testVolume.getVoxelWithWrapping(x, y, z, WrapModes::Clamp));
}
}
}
@ -100,7 +109,7 @@ int32_t complexVolumeTest(void)
for(int x = testVolume.getEnclosingRegion().getLowerX() - 4; x <= testVolume.getEnclosingRegion().getUpperX() + 2; x++)
{
sampler.setPosition(x,y,z);
result += sampler.getVoxel();
result = cantorTupleFunction(result, sampler.getVoxel());
}
}
}
@ -123,7 +132,7 @@ int32_t complexVolumeTest(void)
xSampler = ySampler;
for(int x = testVolume.getEnclosingRegion().getLowerX() - 4; x <= testVolume.getEnclosingRegion().getUpperX() + 2; x++)
{
result += xSampler.getVoxel();
result = cantorTupleFunction(result, xSampler.getVoxel());
xSampler.movePositiveX();
}
ySampler.movePositiveY();
@ -144,7 +153,7 @@ int32_t complexVolumeTest(void)
xSampler = ySampler;
for(int x = 0; x < testVolume.getEnclosingRegion().getWidthInVoxels() + 5; x++)
{
result += xSampler.getVoxel();
result = cantorTupleFunction(result, xSampler.getVoxel());
xSampler.moveNegativeX();
}
ySampler.moveNegativeY();
@ -162,7 +171,7 @@ void TestVolume::testLargeVolume()
{
result = complexVolumeTest< LargeVolume<int32_t> >();
}
QCOMPARE(result, static_cast<int32_t>(1244008559));
QCOMPARE(result, static_cast<int32_t>(-928813120));
}
void TestVolume::testRawVolume()
@ -172,7 +181,7 @@ void TestVolume::testRawVolume()
{
result = complexVolumeTest< RawVolume<int32_t> >();
}
QCOMPARE(result, static_cast<int32_t>(1244008559));
QCOMPARE(result, static_cast<int32_t>(-928813120));
}
void TestVolume::testSimpleVolume()
@ -182,7 +191,7 @@ void TestVolume::testSimpleVolume()
{
result = complexVolumeTest< SimpleVolume<int32_t> >();
}
QCOMPARE(result, static_cast<int32_t>(1244008559));
QCOMPARE(result, static_cast<int32_t>(-928813120));
}
QTEST_MAIN(TestVolume)