001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.util;
019
020import static org.junit.jupiter.api.Assertions.assertTrue;
021
022import org.apache.hadoop.hbase.testclassification.MiscTests;
023import org.apache.hadoop.hbase.testclassification.SmallTests;
024import org.junit.jupiter.api.Tag;
025import org.junit.jupiter.api.Test;
026import org.slf4j.Logger;
027import org.slf4j.LoggerFactory;
028
029/**
030 * Basic test for some old functionality we don't seem to have used but that looks nice.
031 */
032@Tag(MiscTests.TAG)
033@Tag(SmallTests.TAG)
034public class TestRetryCounter {
035  private static final Logger LOG = LoggerFactory.getLogger(TestRetryCounter.class);
036
037  @Test
038  public void testBasics() throws InterruptedException {
039    int maxAttempts = 10;
040    RetryCounterFactory factory = new RetryCounterFactory(maxAttempts, 10, 1000);
041    RetryCounter retryCounter = factory.create();
042    while (retryCounter.shouldRetry()) {
043      LOG.info("Attempt={}, backoffTime={}", retryCounter.getAttemptTimes(),
044        retryCounter.getBackoffTime());
045      retryCounter.sleepUntilNextRetry();
046    }
047    assertTrue(retryCounter.getAttemptTimes() == maxAttempts);
048  }
049}