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.utils;
  
  import com.alibaba.nacos.api.common.Constants;
  import org.junit.jupiter.api.Test;
  
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  class EnvUtilTest {
      
      @Test
      void testSetSelfEnv() {
          Map<String, List<String>> headers = new HashMap<>();
          headers.put(Constants.AMORY_TAG, Arrays.asList("a", "1"));
          headers.put(Constants.VIPSERVER_TAG, Arrays.asList("b", "2"));
          headers.put(Constants.LOCATION_TAG, Arrays.asList("c", "3"));
          EnvUtil.setSelfEnv(headers);
          assertEquals("a,1", EnvUtil.getSelfAmoryTag());
          assertEquals("b,2", EnvUtil.getSelfVipserverTag());
          assertEquals("c,3", EnvUtil.getSelfLocationTag());
          // reset by empty list
          headers.put(Constants.AMORY_TAG, Collections.emptyList());
          headers.put(Constants.VIPSERVER_TAG, Collections.emptyList());
          headers.put(Constants.LOCATION_TAG, Collections.emptyList());
          EnvUtil.setSelfEnv(headers);
          assertNull(EnvUtil.getSelfAmoryTag());
          assertNull(EnvUtil.getSelfVipserverTag());
          assertNull(EnvUtil.getSelfLocationTag());
      }
      
      @Test
      void testSetSelfEnv2() {
          Map<String, List<String>> headers = new HashMap<>();
          headers.put(Constants.AMORY_TAG, Arrays.asList("a", "1"));
          headers.put(Constants.VIPSERVER_TAG, Arrays.asList("b", "2"));
          headers.put(Constants.LOCATION_TAG, Arrays.asList("c", "3"));
          EnvUtil.setSelfEnv(headers);
          assertEquals("a,1", EnvUtil.getSelfAmoryTag());
          assertEquals("b,2", EnvUtil.getSelfVipserverTag());
          assertEquals("c,3", EnvUtil.getSelfLocationTag());
          // reset
          headers.put(Constants.AMORY_TAG, null);
          headers.put(Constants.VIPSERVER_TAG, null);
          headers.put(Constants.LOCATION_TAG, null);
          EnvUtil.setSelfEnv(headers);
          assertNull(EnvUtil.getSelfAmoryTag());
          assertNull(EnvUtil.getSelfVipserverTag());
          assertNull(EnvUtil.getSelfLocationTag());
      }
  }