content: /*
   * Copyright 1999-2023 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.common.http;
  
  import com.alibaba.nacos.common.http.client.NacosAsyncRestTemplate;
  import com.alibaba.nacos.common.http.client.NacosRestTemplate;
  import org.junit.jupiter.api.AfterEach;
  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.slf4j.Logger;
  
  import java.lang.reflect.Field;
  import java.util.HashMap;
  import java.util.Map;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  import static org.mockito.Mockito.when;
  
  @ExtendWith(MockitoExtension.class)
  // todo remove this
  @MockitoSettings(strictness = Strictness.LENIENT)
  class HttpClientBeanHolderTest {
      
      private Map<String, NacosRestTemplate> cachedRestTemplateMap;
      
      private Map<String, NacosRestTemplate> restMap;
      
      private Map<String, NacosAsyncRestTemplate> cachedAsyncRestTemplateMap;
      
      private Map<String, NacosAsyncRestTemplate> restAsyncMap;
      
      @Mock
      private NacosRestTemplate mockRestTemplate;
      
      @Mock
      private NacosAsyncRestTemplate mockAsyncRestTemplate;
      
      @Mock
      private HttpClientFactory mockFactory;
      
      @BeforeEach
      void setUp() throws Exception {
          cachedRestTemplateMap = new HashMap<>();
          cachedAsyncRestTemplateMap = new HashMap<>();
          restMap = (Map<String, NacosRestTemplate>) getCachedMap("SINGLETON_REST");
          restAsyncMap = (Map<String, NacosAsyncRestTemplate>) getCachedMap("SINGLETON_ASYNC_REST");
          cachedRestTemplateMap.putAll(restMap);
          cachedAsyncRestTemplateMap.putAll(restAsyncMap);
          restMap.clear();
          restAsyncMap.clear();
          when(mockFactory.createNacosRestTemplate()).thenReturn(mockRestTemplate);
          when(mockFactory.createNacosAsyncRestTemplate()).thenReturn(mockAsyncRestTemplate);
      }
      
      @AfterEach
      void tearDown() throws Exception {
          restMap.putAll(cachedRestTemplateMap);
          restAsyncMap.putAll(cachedAsyncRestTemplateMap);
          cachedRestTemplateMap.clear();
          cachedAsyncRestTemplateMap.clear();
      }
      
      private Object getCachedMap(String mapName) throws NoSuchFieldException, IllegalAccessException {
          Field field = HttpClientBeanHolder.class.getDeclaredField(mapName);
          field.setAccessible(true);
          return field.get(HttpClientBeanHolder.class);
      }
      
      @Test
      void testGetNacosRestTemplateWithDefault() {
          assertTrue(restMap.isEmpty());
          NacosRestTemplate actual = HttpClientBeanHolder.getNacosRestTemplate((Logger) null);
          assertEquals(1, restMap.size());
          NacosRestTemplate duplicateGet = HttpClientBeanHolder.getNacosRestTemplate((Logger) null);
          assertEquals(1, restMap.size());
          assertEquals(actual, duplicateGet);
      }
      
      @Test
      void testGetNacosRestTemplateForNullFactory() {
          assertThrows(NullPointerException.class, () -> {
              HttpClientBeanHolder.getNacosRestTemplate((HttpClientFactory) null);
          });
      }
      
      @Test
      void testGetNacosRestTemplateWithCustomFactory() {
          assertTrue(restMap.isEmpty());
          HttpClientBeanHolder.getNacosRestTemplate((Logger) null);
          assertEquals(1, restMap.size());
          NacosRestTemplate actual = HttpClientBeanHolder.getNacosRestTemplate(mockFactory);
          assertEquals(2, restMap.size());
          assertEquals(mockRestTemplate, actual);
      }
      
      @Test
      void testGetNacosAsyncRestTemplateWithDefault() {
          assertTrue(restAsyncMap.isEmpty());
          NacosAsyncRestTemplate actual = HttpClientBeanHolder.getNacosAsyncRestTemplate((Logger) null);
          assertEquals(1, restAsyncMap.size());
          NacosAsyncRestTemplate duplicateGet = HttpClientBeanHolder.getNacosAsyncRestTemplate((Logger) null);
          assertEquals(1, restAsyncMap.size());
          assertEquals(actual, duplicateGet);
      }
      
      @Test
      void testGetNacosAsyncRestTemplateForNullFactory() {
          assertThrows(NullPointerException.class, () -> {
              HttpClientBeanHolder.getNacosAsyncRestTemplate((HttpClientFactory) null);
          });
      }
      
      @Test
      void testGetNacosAsyncRestTemplateWithCustomFactory() {
          assertTrue(restAsyncMap.isEmpty());
          HttpClientBeanHolder.getNacosAsyncRestTemplate((Logger) null);
          assertEquals(1, restAsyncMap.size());
          NacosAsyncRestTemplate actual = HttpClientBeanHolder.getNacosAsyncRestTemplate(mockFactory);
          assertEquals(2, restAsyncMap.size());
          assertEquals(mockAsyncRestTemplate, actual);
      }
      
      @Test
      void shutdown() throws Exception {
          HttpClientBeanHolder.getNacosRestTemplate((Logger) null);
          HttpClientBeanHolder.getNacosAsyncRestTemplate((Logger) null);
          assertEquals(1, restMap.size());
          assertEquals(1, restAsyncMap.size());
          HttpClientBeanHolder.shutdown(DefaultHttpClientFactory.class.getName());
          assertEquals(0, restMap.size());
          assertEquals(0, restAsyncMap.size());
      }
  }