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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
   * 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.
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  package org.apache.cassandra.security;
  
  import org.junit.AfterClass;
  import org.junit.Assert;
  import org.junit.BeforeClass;
  import org.junit.Test;
  
  import org.apache.cassandra.config.Config;
  import org.apache.cassandra.config.DatabaseDescriptor;
  import org.apache.cassandra.distributed.shared.WithProperties;
  import org.apache.cassandra.exceptions.ConfigurationException;
  
  import static org.apache.cassandra.config.CassandraRelevantProperties.CASSANDRA_CONFIG;
  
  public class CustomSslContextFactoryConfigTest
  {
      static WithProperties properties;
  
      @BeforeClass
      public static void setupDatabaseDescriptor()
      {
          properties = new WithProperties().set(CASSANDRA_CONFIG, "cassandra-sslcontextfactory.yaml");
      }
  
      @AfterClass
      public static void tearDownDatabaseDescriptor() {
          properties.close();
      }
  
      @Test
      public void testValidCustomSslContextFactoryConfiguration() {
  
          Config config = DatabaseDescriptor.loadConfig();
          config.client_encryption_options.applyConfig();
  
          Assert.assertEquals("org.apache.cassandra.security.DummySslContextFactoryImpl",
                              config.client_encryption_options.ssl_context_factory.class_name);
          Assert.assertEquals(config.client_encryption_options.ssl_context_factory.class_name,
                              config.client_encryption_options.sslContextFactoryInstance.getClass().getName());
          Assert.assertEquals(3, config.client_encryption_options.ssl_context_factory.parameters.size());
          Assert.assertEquals("value1", config.client_encryption_options.ssl_context_factory.parameters.get("key1"));
          Assert.assertEquals("value2", config.client_encryption_options.ssl_context_factory.parameters.get("key2"));
          Assert.assertEquals("value3", config.client_encryption_options.ssl_context_factory.parameters.get("key3"));
          DummySslContextFactoryImpl dummySslContextFactory =
          (DummySslContextFactoryImpl)config.client_encryption_options.sslContextFactoryInstance;
          Assert.assertEquals("dummy-keystore",dummySslContextFactory.getStringValueFor("keystore"));
      }
  
      @Test
      public void testInvalidCustomSslContextFactoryConfiguration() {
          Config config = DatabaseDescriptor.loadConfig();
          try {
              config.server_encryption_options.applyConfig();
          } catch(ConfigurationException ce) {
              Assert.assertEquals("Unable to create instance of ISslContextFactory for org.apache.cassandra.security" +
                                  ".MissingSslContextFactoryImpl", ce.getMessage());
              Assert.assertNotNull("Unable to find root cause of pluggable ISslContextFactory loading failure",
                                   ce.getCause());
              Assert.assertTrue(ce.getCause() instanceof ClassNotFoundException);
          }
      }
  }
  