### Question:
LoadIncrementalHFiles extends Configured implements Tool { static void splitStoreFile( Configuration conf, Path inFile, HColumnDescriptor familyDesc, byte[] splitKey, Path bottomOut, Path topOut) throws IOException { Reference topReference = new Reference(splitKey, Range.top); Reference bottomReference = new Reference(splitKey, Range.bottom); copyHFileHalf(conf, inFile, topOut, topReference, familyDesc); copyHFileHalf(conf, inFile, bottomOut, bottomReference, familyDesc); } LoadIncrementalHFiles(Configuration conf);  LoadIncrementalHFiles(); void doBulkLoad(Path hfofDir, HTable table); @Override int run(String[] args); static void main(String[] args); static String NAME; }### Answer:
@Test public void testSplitStoreFile() throws IOException { Path dir = HBaseTestingUtility.getTestDir("testSplitHFile"); FileSystem fs = util.getTestFileSystem(); Path testIn = new Path(dir, "testhfile"); HColumnDescriptor familyDesc = new HColumnDescriptor(FAMILY); createHFile(fs, testIn, FAMILY, QUALIFIER, Bytes.toBytes("aaa"), Bytes.toBytes("zzz"), 1000); Path bottomOut = new Path(dir, "bottom.out"); Path topOut = new Path(dir, "top.out"); LoadIncrementalHFiles.splitStoreFile( util.getConfiguration(), testIn, familyDesc, Bytes.toBytes("ggg"), bottomOut, topOut); int rowCount = verifyHFile(bottomOut); rowCount += verifyHFile(topOut); assertEquals(1000, rowCount); }