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.common.utils;
  
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  /**
   * test RandomUtils.
   *
   * @author zzq
   */
  class RandomUtilsTest {
      
      @Test
      void testNextLong() {
          final long result = RandomUtils.nextLong(1L, 199L);
          assertTrue(result >= 1L && result < 199L);
      }
      
      @Test
      void testNextLongWithSame() {
          final long result = RandomUtils.nextLong(1L, 1L);
          assertEquals(1L, result);
      }
      
      @Test
      void testNextLongWithIllegalArgumentException() {
          assertThrows(IllegalArgumentException.class, () -> {
              RandomUtils.nextLong(999L, 199L);
          });
      }
      
      @Test
      void testNextLongWithIllegalArgumentException2() {
          assertThrows(IllegalArgumentException.class, () -> {
              RandomUtils.nextLong(-10L, 199L);
          });
      }
      
      @Test
      void testNextInt() {
          final int result = RandomUtils.nextInt(1, 199);
          assertTrue(result >= 1 && result < 199);
      }
      
      @Test
      void testNextIntWithSame() {
          final int result = RandomUtils.nextInt(1, 1);
          assertEquals(1, result);
      }
  }
  