content: /*
   * 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.bifromq.sysprops;
  
  import static org.testng.Assert.assertEquals;
  import static org.testng.Assert.assertTrue;
  
  import org.apache.bifromq.sysprops.props.ClusterDomainResolveTimeoutSeconds;
  import java.util.HashSet;
  import java.util.Set;
  import org.reflections.Reflections;
  import org.testng.annotations.Test;
  
  public class BifroMQSysPropTest {
  
      @Test
      public void propKeyNoConflict() {
          Reflections reflections = new Reflections(BifroMQSysProp.class.getPackageName());
          Set<String> propKeys = new HashSet<>();
          for (Class<? extends BifroMQSysProp> subclass : reflections.getSubTypesOf(BifroMQSysProp.class)) {
              try {
                  // Assuming each subclass has a public static INSTANCE field
                  BifroMQSysProp<?, ?> instance = (BifroMQSysProp<?, ?>) subclass.getField("INSTANCE").get(null);
                  String propKey = instance.propKey();
                  assertTrue(propKeys.add(propKey), "Duplicate propKey found: " + propKey);
              } catch (NoSuchFieldException | IllegalAccessException e) {
                  throw new RuntimeException("Failed to access INSTANCE field of subclass: " + subclass.getName(), e);
              }
          }
      }
  
      @Test
      public void testResolve() {
          ClusterDomainResolveTimeoutSeconds.INSTANCE.resolve();
          assertEquals(ClusterDomainResolveTimeoutSeconds.INSTANCE.get(), Long.valueOf(120));
  
          System.setProperty(ClusterDomainResolveTimeoutSeconds.INSTANCE.propKey(), "100");
          ClusterDomainResolveTimeoutSeconds.INSTANCE.resolve();
          assertEquals(ClusterDomainResolveTimeoutSeconds.INSTANCE.get(), Long.valueOf(100));
      }
  }
  