@Override
  @Before
  public void setUp() throws Exception {
    tempSGDir = new File(TestConstant.getTestTsFileDir("root.compactionTest", 0, 0));
    if (!tempSGDir.exists()) {
      assertTrue(tempSGDir.mkdirs());
    }
    super.setUp();
  }
This test is used for old version of inner space compact. We leave it as it still validates the
current compaction. However, due to this test's strong coupling with an older version of
compaction, we may remove it in the future.
iotdb-core/datanode/src/test/java/org/apache/iotdb/db/storageengine/dataregion/compaction/inner/ReadChunkCompactionPerformerOldTest.java