@Test
  public void batchedThroughTtlManagerTest() throws Exception {
    assertTtl(router, blobIds, TTL_SECS);
    executeOpAndVerify(blobIds, null, false, false, false, true, false);
    // ok to do it again
    executeOpAndVerify(blobIds, null, false, false, false, true, false);
  }
Test where TTL update is done for multiple blobs at the same time
@throws Exception
ambry-router/src/test/java/com/github/ambry/router/TtlUpdateManagerTest.java