content: /*
   *
   * Copyright 1999-2018 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.client.naming.remote.http;
  
  import com.alibaba.nacos.api.exception.NacosException;
  import com.alibaba.nacos.common.http.HttpClientBeanHolder;
  import com.alibaba.nacos.common.http.client.NacosRestTemplate;
  import com.alibaba.nacos.common.http.client.request.HttpClientRequest;
  import org.junit.jupiter.api.Test;
  import org.mockito.Mockito;
  
  import java.io.IOException;
  import java.lang.reflect.Field;
  import java.util.Map;
  
  import static com.alibaba.nacos.common.constant.RequestUrlConstants.HTTP_PREFIX;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.mockito.Mockito.doThrow;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  
  class NamingHttpClientManagerTest {
      
      @Test
      void testGetInstance() {
          assertNotNull(NamingHttpClientManager.getInstance());
      }
      
      @Test
      void testGetPrefix() {
          assertEquals(HTTP_PREFIX, NamingHttpClientManager.getInstance().getPrefix());
      }
      
      @Test
      void testGetNacosRestTemplate() {
          assertNotNull(NamingHttpClientManager.getInstance().getNacosRestTemplate());
      }
      
      @Test
      void testShutdown() throws NoSuchFieldException, IllegalAccessException, NacosException, IOException {
          //given
          NamingHttpClientManager instance = NamingHttpClientManager.getInstance();
          
          HttpClientRequest mockHttpClientRequest = Mockito.mock(HttpClientRequest.class);
          Field requestClient = NacosRestTemplate.class.getDeclaredField("requestClient");
          requestClient.setAccessible(true);
          requestClient.set(instance.getNacosRestTemplate(), mockHttpClientRequest);
          // when
          NamingHttpClientManager.getInstance().shutdown();
          // then
          verify(mockHttpClientRequest, times(1)).close();
      }
      
      @Test
      void testShutdownWithException() throws Exception {
          String key = "com.alibaba.nacos.client.naming.remote.http.NamingHttpClientManager$NamingHttpClientFactory";
          try {
              HttpClientBeanHolder.shutdownNacosSyncRest(key);
          } catch (Exception ignored) {
          }
          Field field = HttpClientBeanHolder.class.getDeclaredField("SINGLETON_REST");
          field.setAccessible(true);
          Map<String, NacosRestTemplate> map = (Map<String, NacosRestTemplate>) field.get(null);
          NacosRestTemplate mockRest = mock(NacosRestTemplate.class);
          map.put(key, mockRest);
          doThrow(new RuntimeException("test")).when(mockRest).close();
          NamingHttpClientManager.getInstance().shutdown();
          assertEquals(mockRest, map.remove(key));
      }
  }