@Test
  public void testSimpleLoad() throws Exception {
    runTest("testSimpleLoad", BloomType.NONE,
      new byte[][][] { new byte[][] { Bytes.toBytes("aaaa"), Bytes.toBytes("cccc") },
        new byte[][] { Bytes.toBytes("ddd"), Bytes.toBytes("ooo") }, });
  }
Test case that creates some regions and loads HFiles that fit snugly inside those regions
hbase-server/src/test/java/org/apache/hadoop/hbase/tool/TestBulkLoadHFiles.java