### Question:
LogIndexer { public String get(long logIndex) { return logStore.get(logIndex); } LogIndexer(LogStore logStore, ReceiptStore receiptStore); void put(String txId, int size); String get(long logIndex); Log getLog(long logIndex); List<Log> getLogs(long from, long offset); long curIndex(); boolean contains(long logIndex); void close();  }### Answer:
@Test public void getValueTest() { for (int i = 0; i < 10; i++) { assertEquals(String.format(keyFormat, txHashes.get(i), 9), logIndexer.get(10 * i + 9)); assertEquals(String.format(keyFormat, txHashes.get(i), 0), logIndexer.get(10 * i)); } }