code: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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 org.apache.skywalking.oap.server.library.util;
  
  import org.junit.jupiter.api.Test;
  
  import java.util.List;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  
  public class ConnectUtilTestCase {
  
      @Test
      public void parse() throws ConnectStringParseException {
          List<Address> list = ConnectUtils.parse("10.0.0.1:1000,10.0.0.2:1001");
          assertEquals(2, list.size());
  
          assertEquals("10.0.0.1", list.get(0).getHost());
          assertEquals(1000, list.get(0).getPort());
  
          assertEquals("10.0.0.2", list.get(1).getHost());
          assertEquals(1001, list.get(1).getPort());
      }
  
      @Test
      public void comma() throws ConnectStringParseException {
          List<Address> list = ConnectUtils.parse("10.0.0.1:1000,");
  
          assertEquals(1, list.size());
  
          assertEquals("10.0.0.1", list.get(0).getHost());
          assertEquals(1000, list.get(0).getPort());
  
          list = ConnectUtils.parse(",10.0.0.1:1000");
  
          assertEquals(1, list.size());
  
          assertEquals("10.0.0.1", list.get(0).getHost());
          assertEquals(1000, list.get(0).getPort());
      }
  
      @Test
      public void nullTest() {
          assertThrows(ConnectStringParseException.class, () -> ConnectUtils.parse(null));
      }
  
      @Test
      public void emptyTest() {
          assertThrows(ConnectStringParseException.class, () -> ConnectUtils.parse(""));
      }
  
      @Test
      public void shouldThrowIfOnlyComma() {
          assertThrows(ConnectStringParseException.class, () -> ConnectUtils.parse(",,"));
      }
  
      @Test
      public void shouldThrowIfHostWithoutPort() {
          assertThrows(ConnectStringParseException.class, () -> ConnectUtils.parse("localhost"));
      }
  
      @Test
      public void shouldThrowIfPortIsNotNumber() {
          assertThrows(ConnectStringParseException.class, () -> ConnectUtils.parse("localhost:what"));
      }
  
      @Test
      public void invalidPattern1() {
          assertThrows(ConnectStringParseException.class, () -> ConnectUtils.parse("10.0.0.1:"));
      }
  
      @Test
      public void invalidPattern2() {
          assertThrows(ConnectStringParseException.class, () -> ConnectUtils.parse("10.0.0.1:xx"));
      }
  }
  