content: /*
   * Copyright 1999-2020 Alibaba Group Holding Ltd.
   *
   * Licensed 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 com.alibaba.nacos.naming.monitor;
  
  import com.alibaba.nacos.core.monitor.NacosMeterRegistryCenter;
  import com.alibaba.nacos.naming.core.v2.pojo.BatchInstancePublishInfo;
  import com.alibaba.nacos.naming.core.v2.pojo.InstancePublishInfo;
  import com.alibaba.nacos.sys.utils.ApplicationUtils;
  import io.micrometer.core.instrument.simple.SimpleMeterRegistry;
  import io.micrometer.prometheus.PrometheusMeterRegistry;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.ExtendWith;
  import org.mockito.Mock;
  import org.mockito.junit.jupiter.MockitoExtension;
  import org.mockito.junit.jupiter.MockitoSettings;
  import org.mockito.quality.Strictness;
  import org.springframework.context.ConfigurableApplicationContext;
  
  import java.util.LinkedList;
  import java.util.List;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.mockito.Mockito.when;
  
  @MockitoSettings(strictness = Strictness.LENIENT)
  @ExtendWith(MockitoExtension.class)
  class MetricsMonitorTest {
      
      @Mock
      private ConfigurableApplicationContext context;
      
      @BeforeEach
      void setUp() {
          ApplicationUtils.injectContext(context);
          when(context.getBean(PrometheusMeterRegistry.class)).thenReturn(null);
          // add simple meterRegistry.
          NacosMeterRegistryCenter.getMeterRegistry(NacosMeterRegistryCenter.NAMING_STABLE_REGISTRY).add(new SimpleMeterRegistry());
          
          MetricsMonitor.resetPush();
          MetricsMonitor.getIpCountMonitor().set(0);
      }
      
      @Test
      void testGetTotalPush() {
          assertEquals(0, MetricsMonitor.getTotalPushMonitor().get());
          assertEquals(1, MetricsMonitor.getTotalPushMonitor().incrementAndGet());
      }
      
      @Test
      void testGetFailedPush() {
          assertEquals(0, MetricsMonitor.getFailedPushMonitor().get());
          assertEquals(1, MetricsMonitor.getFailedPushMonitor().incrementAndGet());
      }
      
      @Test
      void testIncrementIpCountWithBatchRegister() {
          BatchInstancePublishInfo test = new BatchInstancePublishInfo();
          List<InstancePublishInfo> instancePublishInfos = new LinkedList<>();
          instancePublishInfos.add(new InstancePublishInfo());
          test.setInstancePublishInfos(instancePublishInfos);
          assertEquals(0, MetricsMonitor.getIpCountMonitor().get());
          MetricsMonitor.incrementIpCountWithBatchRegister(null, test);
          assertEquals(1, MetricsMonitor.getIpCountMonitor().get());
          
          BatchInstancePublishInfo newTest = new BatchInstancePublishInfo();
          List<InstancePublishInfo> newInstances = new LinkedList<>();
          newInstances.add(new InstancePublishInfo());
          newInstances.add(new InstancePublishInfo());
          newTest.setInstancePublishInfos(newInstances);
          MetricsMonitor.incrementIpCountWithBatchRegister(test, newTest);
          assertEquals(2, MetricsMonitor.getIpCountMonitor().get());
          MetricsMonitor.incrementIpCountWithBatchRegister(newTest, test);
          assertEquals(1, MetricsMonitor.getIpCountMonitor().get());
      }
      
      @Test
      void testIncrementIpCountWithBatchRegisterAfterNormalRegister() {
          // mock normal register
          MetricsMonitor.incrementInstanceCount();
          BatchInstancePublishInfo newTest = new BatchInstancePublishInfo();
          List<InstancePublishInfo> newInstances = new LinkedList<>();
          newInstances.add(new InstancePublishInfo());
          newInstances.add(new InstancePublishInfo());
          newTest.setInstancePublishInfos(newInstances);
          MetricsMonitor.incrementIpCountWithBatchRegister(new InstancePublishInfo(), newTest);
          assertEquals(2, MetricsMonitor.getIpCountMonitor().get());
      }
  }
  