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.core.utils;
  
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  /**
   * {@link StringPool} unit tests.
   *
   * @author chenglu
   * @date 2021-06-10 13:52
   */
  class StringPoolTest {
      
      @Test
      void testStringPool() {
          String val1 = StringPool.get("test");
          assertEquals("test", val1);
          
          String val2 = StringPool.get(null);
          assertNull(val2);
          
          long size1 = StringPool.size();
          assertEquals(1, size1);
          
          StringPool.remove("test");
          long size2 = StringPool.size();
          assertEquals(0, size2);
      }
  }
  