code: /*
   * 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.skywalking.oap.server.core.analysis.metrics;
  
  import org.apache.skywalking.oap.server.core.remote.grpc.proto.RemoteData;
  import org.apache.skywalking.oap.server.core.storage.StorageID;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  
  public class MetricsTest {
      @Test
      public void testTransferToTimeBucket() {
          MetricsMocker mocker = new MetricsMocker();
  
          mocker.setTimeBucket(201809120511L);
          Assertions.assertEquals(2018091205L, mocker.toTimeBucketInHour());
          Assertions.assertEquals(20180912L, mocker.toTimeBucketInDay());
  
          mocker = new MetricsMocker();
  
          mocker.setTimeBucket(2018091205L);
          Assertions.assertEquals(20180912L, mocker.toTimeBucketInDay());
      }
  
      @Test
      public void testIllegalTransferToTimeBucket() {
          MetricsMocker mocker = new MetricsMocker();
          mocker.setTimeBucket(2018091205L);
  
          boolean status = true;
          try {
              mocker.toTimeBucketInHour();
          } catch (IllegalStateException e) {
              status = false;
          }
          Assertions.assertFalse(status);
  
          mocker = new MetricsMocker();
          mocker.setTimeBucket(20180912L);
  
          status = true;
          try {
              mocker.toTimeBucketInHour();
          } catch (IllegalStateException e) {
              status = false;
          }
          Assertions.assertFalse(status);
  
          status = true;
          try {
              mocker.toTimeBucketInDay();
          } catch (IllegalStateException e) {
              status = false;
          }
          Assertions.assertFalse(status);
      }
  
      public class MetricsMocker extends Metrics {
  
          @Override
          protected StorageID id0() {
              return null;
          }
  
          @Override
          public boolean combine(Metrics metrics) {
              return true;
          }
  
          @Override
          public void calculate() {
  
          }
  
          @Override
          public Metrics toHour() {
              return null;
          }
  
          @Override
          public Metrics toDay() {
              return null;
          }
  
          @Override
          public void deserialize(RemoteData remoteData) {
  
          }
  
          @Override
          public RemoteData.Builder serialize() {
              return null;
          }
  
          @Override
          public int remoteHashCode() {
              return 0;
          }
      }
  }
  