content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License. You may obtain a copy of the License at
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.kafka.clients.consumer.internals.metrics;
  
  import org.apache.kafka.common.metrics.Metrics;
  import org.apache.kafka.common.utils.MockTime;
  import org.apache.kafka.common.utils.Time;
  
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  
  
  class ShareRebalanceMetricsManagerTest {
  
      private final Time time = new MockTime();
      private final Metrics metrics = new Metrics(time);
  
      @Test
      public void testRebalanceMetrics() {
          ShareRebalanceMetricsManager shareRebalanceMetricsManager = new ShareRebalanceMetricsManager(metrics);
  
          assertNotNull(metrics.metric(shareRebalanceMetricsManager.rebalanceTotal));
          assertNotNull(metrics.metric(shareRebalanceMetricsManager.rebalanceRatePerHour));
  
          shareRebalanceMetricsManager.recordRebalanceStarted(10);
          shareRebalanceMetricsManager.recordRebalanceEnded(25);
          shareRebalanceMetricsManager.recordRebalanceStarted(30);
          shareRebalanceMetricsManager.recordRebalanceEnded(40);
          shareRebalanceMetricsManager.recordRebalanceStarted(50);
          shareRebalanceMetricsManager.recordRebalanceEnded(100);
  
          assertEquals(3.0d, metrics.metric(shareRebalanceMetricsManager.rebalanceTotal).metricValue());
          assertEquals(360.d, metrics.metric(shareRebalanceMetricsManager.rebalanceRatePerHour).metricValue());
      }
  }
  