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.config.listener.impl;
  
  import org.junit.jupiter.api.Test;
  
  import java.util.ArrayDeque;
  import java.util.Deque;
  import java.util.Properties;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  class PropertiesListenerTest {
      
      @Test
      void testReceiveConfigInfo() {
          final Deque<Properties> q2 = new ArrayDeque<Properties>();
          PropertiesListener a = new PropertiesListener() {
              @Override
              public void innerReceive(Properties properties) {
                  q2.offer(properties);
              }
          };
          a.receiveConfigInfo("foo=bar");
          final Properties actual = q2.poll();
          assertEquals(1, actual.size());
          assertEquals("bar", actual.getProperty("foo"));
          
      }
      
      @Test
      void testReceiveConfigInfoEmpty() {
          final Deque<Properties> q2 = new ArrayDeque<Properties>();
          PropertiesListener a = new PropertiesListener() {
              @Override
              public void innerReceive(Properties properties) {
                  q2.offer(properties);
              }
          };
          a.receiveConfigInfo("");
          final Properties actual = q2.poll();
          assertNull(actual);
      }
      
      @Test
      void testReceiveConfigInfoIsNotProperties() {
          final Deque<Properties> q2 = new ArrayDeque<Properties>();
          PropertiesListener a = new PropertiesListener() {
              @Override
              public void innerReceive(Properties properties) {
                  q2.offer(properties);
              }
          };
          a.receiveConfigInfo(null);
          final Properties actual = q2.poll();
          assertNull(actual);
      }
      
      @Test
      void testInnerReceive() {
          final Deque<Properties> q2 = new ArrayDeque<Properties>();
          PropertiesListener a = new PropertiesListener() {
              @Override
              public void innerReceive(Properties properties) {
                  q2.offer(properties);
              }
          };
          Properties input = new Properties();
          input.put("foo", "bar");
          a.innerReceive(input);
          final Properties actual = q2.poll();
          assertEquals(1, actual.size());
          assertEquals("bar", actual.getProperty("foo"));
      }
      
  }