protected void getAllVersionsAndVerify(Table ht, byte[] row, byte[] family, byte[] qualifier,
    long[] stamps, byte[][] values, int start, int end) throws IOException {
    Get get = new Get(row);
    get.addColumn(family, qualifier);
    get.readVersions(Integer.MAX_VALUE);
    Result result = ht.get(get);
    assertNResult(result, row, family, qualifier, stamps, values, start, end);
  }
Validate that result contains two specified keys, exactly. It is assumed key A sorts before key
B.
hbase-server/src/test/java/org/apache/hadoop/hbase/client/FromClientSideBase.java