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-rw-r--r--tests/ChunkData/CMakeLists.txt3
-rw-r--r--tests/ChunkData/CopyBlocks.cpp65
2 files changed, 68 insertions, 0 deletions
diff --git a/tests/ChunkData/CMakeLists.txt b/tests/ChunkData/CMakeLists.txt
index fd508cc6e..381e11cc2 100644
--- a/tests/ChunkData/CMakeLists.txt
+++ b/tests/ChunkData/CMakeLists.txt
@@ -24,3 +24,6 @@ add_executable(arraystocoords-exe ArraytoCoord.cpp)
target_link_libraries(arraystocoords-exe ChunkBuffer)
add_test(NAME arraystocoords-test COMMAND arraystocoords-exe)
+add_executable(copyblocks-exe CopyBlocks.cpp)
+target_link_libraries(copyblocks-exe ChunkBuffer)
+add_test(NAME copyblocks-test COMMAND copyblocks-exe)
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;
+}
+
+
+
+
+