@Test
  public void responseTimeoutTest() throws Exception {
    // configure servers to not respond to requests
    serverLayout.getMockServers().forEach(mockServer -> mockServer.setShouldRespond(false));
    executeOpAndVerify(blobIds, RouterErrorCode.OperationTimedOut, true, true, true, false, false);
  }
Tests for behavior on timeouts
@throws Exception
ambry-router/src/test/java/com/github/ambry/router/TtlUpdateManagerTest.java