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Diffstat (limited to '')
-rw-r--r-- | tests/ChunkData/CopyBlocks.cpp | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/tests/ChunkData/CopyBlocks.cpp b/tests/ChunkData/CopyBlocks.cpp new file mode 100644 index 000000000..d132411db --- /dev/null +++ b/tests/ChunkData/CopyBlocks.cpp @@ -0,0 +1,65 @@ + +// CopyBlocks.cpp + +// Implements the test for cChunkData::CopyBlockTypes() range copying + + + + + +#include "Globals.h" +#include "ChunkData.h" + + + + + +int main(int argc, char ** argv) +{ + // Set up a cChunkData with known contents - all blocks 0x01, all metas 0x02: + cChunkData Data; + 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)); + for (size_t idx = 0; idx < 5000; idx++) + { + for (size_t len = 1; len < 1000; len += 15) + { + printf("Testing copying %u blocks from index %u\n", (unsigned)len, (unsigned)idx); + + Data.CopyBlockTypes(WritePosition, idx, len); + + // Verify the data copied: + for (size_t i = 0; i < len; i++) + { + assert_test(WritePosition[i] == 0x01); + } + // Verify the space before the copied data hasn't been changed: + for (size_t i = 0; i < WritePosIdx + idx; i++) + { + assert_test(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++) + { + assert_test(TestBuffer[i] == 0x03); + } + } + } // for idx + return 0; +} + + + + + |