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;
  
  public class RebalanceCallbackMetricsManagerTest {
      private final Time time = new MockTime();
      private final Metrics metrics = new Metrics(time);
  
      @Test
      public void testRebalanceCallbackMetrics() {
          RebalanceCallbackMetricsManager metricsManager = new RebalanceCallbackMetricsManager(metrics);
          assertNotNull(metrics.metric(metricsManager.partitionRevokeLatencyAvg));
          assertNotNull(metrics.metric(metricsManager.partitionRevokeLatencyMax));
          assertNotNull(metrics.metric(metricsManager.partitionAssignLatencyAvg));
          assertNotNull(metrics.metric(metricsManager.partitionAssignLatencyMax));
          assertNotNull(metrics.metric(metricsManager.partitionLostLatencyAvg));
          assertNotNull(metrics.metric(metricsManager.partitionLostLatencyMax));
  
          metricsManager.recordPartitionsAssignedLatency(100);
          metricsManager.recordPartitionsRevokedLatency(101);
          metricsManager.recordPartitionsLostLatency(102);
  
          assertEquals(101d, metrics.metric(metricsManager.partitionRevokeLatencyAvg).metricValue());
          assertEquals(101d, metrics.metric(metricsManager.partitionRevokeLatencyMax).metricValue());
          assertEquals(100d, metrics.metric(metricsManager.partitionAssignLatencyAvg).metricValue());
          assertEquals(100d, metrics.metric(metricsManager.partitionAssignLatencyMax).metricValue());
          assertEquals(102d, metrics.metric(metricsManager.partitionLostLatencyAvg).metricValue());
          assertEquals(102d, metrics.metric(metricsManager.partitionLostLatencyMax).metricValue());
      }
  }
  