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// CopyBlocks.cpp
// Implements the test for cChunkData::CopyBlockTypes() range copying
#include "Globals.h"
#include "../TestHelpers.h"
#include "ChunkData.h"
/** Performs the entire CopyBlocks test. */
static void test()
{
// Set up a cChunkData with known contents - all blocks 0x01, all metas 0x02:
class cMockAllocationPool
: public cAllocationPool<cChunkData::sChunkSection>
{
virtual cChunkData::sChunkSection * Allocate() override
{
return new cChunkData::sChunkSection();
}
virtual void Free(cChunkData::sChunkSection * a_Ptr) override
{
delete a_Ptr;
}
virtual bool DoIsEqual(const cAllocationPool<cChunkData::sChunkSection> &) const noexcept override
{
return false;
}
} Pool;
cChunkData Data(Pool);
cChunkDef::BlockTypes BlockTypes;
cChunkDef::BlockNibbles BlockMetas;
memset(BlockTypes, 0x01, sizeof(BlockTypes));
memset(BlockMetas, 0x02, sizeof(BlockMetas));
Data.SetBlockTypes(BlockTypes);
Data.SetMetas(BlockMetas);
// Try to read varying amounts of blocktypes from the cChunkData.
// Verify that the exact amount of memory is copied, by copying to a larger buffer and checking its boundaries
BLOCKTYPE TestBuffer[5 * cChunkDef::NumBlocks];
size_t WritePosIdx = 2 * cChunkDef::NumBlocks;
BLOCKTYPE * WritePosition = &TestBuffer[WritePosIdx];
memset(TestBuffer, 0x03, sizeof(TestBuffer));
size_t LastReportedStep = 1;
for (size_t idx = 0; idx < 5000; idx += 73)
{
if (idx / 500 != LastReportedStep)
{
printf("Testing index %u...\n", static_cast<unsigned>(idx));
LastReportedStep = idx / 500;
}
for (size_t len = 3; len < 700; len += 13)
{
Data.CopyBlockTypes(WritePosition, idx, len);
// Verify the data copied:
for (size_t i = 0; i < len; i++)
{
TEST_EQUAL(WritePosition[i], 0x01);
}
// Verify the space before the copied data hasn't been changed:
for (size_t i = 0; i < WritePosIdx; i++)
{
TEST_EQUAL(TestBuffer[i], 0x03);
}
// Verify the space after the copied data hasn't been changed:
for (size_t i = WritePosIdx + idx + len; i < ARRAYCOUNT(TestBuffer); i++)
{
TEST_EQUAL(TestBuffer[i], 0x03);
}
// Re-initialize the buffer for the next test:
for (size_t i = 0; i < len; i++)
{
WritePosition[i] = 0x03;
}
} // for len
} // for idx
}
IMPLEMENT_TEST_MAIN("ChunkData CopyBlocks",
test()
)
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