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.analysis.metrics.expression.StringMatch;
  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 PercentMetricsTest {
      @Test
      public void testEntranceCombine() {
          PercentMetricsImpl impl = new PercentMetricsImpl();
          impl.combine(new StringMatch().match(true, true));
          impl.combine(new StringMatch().match(true, false));
          impl.combine(new StringMatch().match(true, false));
  
          impl.calculate();
  
          Assertions.assertEquals(3333, impl.getValue());
  
          impl = new PercentMetricsImpl();
          impl.combine(new StringMatch().match(true, true));
          impl.combine(new StringMatch().match(true, true));
          impl.combine(new StringMatch().match(true, false));
  
          impl.calculate();
  
          Assertions.assertEquals(6666, impl.getValue());
      }
  
      @Test
      public void testSelfCombine() {
          PercentMetricsImpl impl = new PercentMetricsImpl();
          impl.combine(new StringMatch().match(true, true));
          impl.combine(new StringMatch().match(true, false));
          impl.combine(new StringMatch().match(true, false));
  
          PercentMetricsImpl impl2 = new PercentMetricsImpl();
          impl2.combine(new StringMatch().match(true, true));
          impl2.combine(new StringMatch().match(true, true));
          impl2.combine(new StringMatch().match(true, false));
  
          impl.combine(impl2);
  
          impl.calculate();
  
          Assertions.assertEquals(5000, impl.getValue());
      }
  
      public class PercentMetricsImpl extends PercentMetrics {
  
          @Override
          protected StorageID id0() {
              return null;
          }
  
          @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;
          }
      }
  }
  