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   * 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
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   * See the License for the specific language governing permissions and
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  package org.apache.cassandra.locator;
  
  import org.junit.Test;
  
  import org.apache.cassandra.config.DurationSpec;
  import org.apache.cassandra.exceptions.ConfigurationException;
  import org.apache.cassandra.locator.AbstractCloudMetadataServiceConnector.DefaultCloudMetadataServiceConnector;
  import org.apache.cassandra.utils.Pair;
  
  import static org.apache.cassandra.locator.AbstractCloudMetadataServiceConnector.DEFAULT_METADATA_REQUEST_TIMEOUT;
  import static org.apache.cassandra.locator.AbstractCloudMetadataServiceConnector.METADATA_REQUEST_TIMEOUT_PROPERTY;
  import static org.apache.cassandra.locator.AbstractCloudMetadataServiceConnector.METADATA_URL_PROPERTY;
  import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
  import static org.junit.Assert.assertEquals;
  
  public class DefaultCloudMetadataServiceConnectorTest
  {
      @Test
      public void testDefaultConnector()
      {
          assertEquals(new DurationSpec.IntMillisecondsBound(DEFAULT_METADATA_REQUEST_TIMEOUT).toMilliseconds(),
                       new DefaultCloudMetadataServiceConnector(new SnitchProperties(Pair.create(METADATA_REQUEST_TIMEOUT_PROPERTY, DEFAULT_METADATA_REQUEST_TIMEOUT),
                                                                                     Pair.create(METADATA_URL_PROPERTY, "http://127.0.0.1/abc"))).requestTimeoutMs);
  
          assertEquals(0, new DefaultCloudMetadataServiceConnector(new SnitchProperties(Pair.create(METADATA_REQUEST_TIMEOUT_PROPERTY, "0s"), Pair.create(METADATA_URL_PROPERTY, "http://127.0.0.1/abc"))).requestTimeoutMs);
          assertEquals(30000, new DefaultCloudMetadataServiceConnector(new SnitchProperties(Pair.create(METADATA_URL_PROPERTY, "http://127.0.0.1/abc"))).requestTimeoutMs);
      }
  
      @Test
      public void testInvalidMetadataURL()
      {
          assertThatExceptionOfType(ConfigurationException.class)
          .isThrownBy(() -> new DefaultCloudMetadataServiceConnector(new SnitchProperties(Pair.create(METADATA_URL_PROPERTY, "http:"))))
          .withMessage("Snitch metadata service URL 'http:' is invalid. Please review snitch properties defined in the configured 'cassandra-rackdc.properties' configuration file.");
      }
  
      @Test
      public void testInvalidTimeout()
      {
          assertThatExceptionOfType(ConfigurationException.class)
          .isThrownBy(() -> new DefaultCloudMetadataServiceConnector(new SnitchProperties(Pair.create(METADATA_REQUEST_TIMEOUT_PROPERTY, "1x"),
                                                                                          Pair.create(METADATA_URL_PROPERTY, "http://127.0.0.1/abc"))))
          .withMessage("1x as value of metadata_request_timeout is invalid duration! Invalid duration: 1x Accepted units:[MILLISECONDS, SECONDS, MINUTES, HOURS, DAYS] where case matters and only non-negative values.");
      }
  }
  