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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 com.datastax.oss.driver.core;
  
  import static org.assertj.core.api.Assertions.assertThat;
  
  import com.datastax.oss.driver.api.core.CqlIdentifier;
  import com.datastax.oss.driver.api.core.CqlSession;
  import com.datastax.oss.driver.api.core.InvalidKeyspaceException;
  import com.datastax.oss.driver.api.core.config.DefaultDriverOption;
  import com.datastax.oss.driver.api.core.config.DriverConfigLoader;
  import com.datastax.oss.driver.api.core.session.Session;
  import com.datastax.oss.driver.api.testinfra.ccm.CcmRule;
  import com.datastax.oss.driver.api.testinfra.session.SessionRule;
  import com.datastax.oss.driver.api.testinfra.session.SessionUtils;
  import com.datastax.oss.driver.categories.ParallelizableTests;
  import org.junit.ClassRule;
  import org.junit.Test;
  import org.junit.experimental.categories.Category;
  import org.junit.rules.RuleChain;
  import org.junit.rules.TestRule;
  
  @Category(ParallelizableTests.class)
  public class ConnectKeyspaceIT {
    private static final CcmRule CCM_RULE = CcmRule.getInstance();
  
    private static final SessionRule<CqlSession> SESSION_RULE = SessionRule.builder(CCM_RULE).build();
  
    @ClassRule
    public static final TestRule CHAIN = RuleChain.outerRule(CCM_RULE).around(SESSION_RULE);
  
    @Test
    public void should_connect_to_existing_keyspace() {
      CqlIdentifier keyspace = SESSION_RULE.keyspace();
      try (Session session = SessionUtils.newSession(CCM_RULE, keyspace)) {
        assertThat(session.getKeyspace()).hasValue(keyspace);
      }
    }
  
    @Test
    public void should_connect_with_no_keyspace() {
      try (Session session = SessionUtils.newSession(CCM_RULE)) {
        assertThat(session.getKeyspace()).isEmpty();
      }
    }
  
    @Test(expected = InvalidKeyspaceException.class)
    public void should_fail_to_connect_to_non_existent_keyspace_when_not_reconnecting_on_init() {
      should_fail_to_connect_to_non_existent_keyspace(null);
    }
  
    @Test(expected = InvalidKeyspaceException.class)
    public void should_fail_to_connect_to_non_existent_keyspace_when_reconnecting_on_init() {
      // Just checking that we don't trigger retries for this unrecoverable error
      should_fail_to_connect_to_non_existent_keyspace(
          SessionUtils.configLoaderBuilder()
              .withBoolean(DefaultDriverOption.RECONNECT_ON_INIT, true)
              .build());
    }
  
    private void should_fail_to_connect_to_non_existent_keyspace(DriverConfigLoader loader) {
      CqlIdentifier keyspace = CqlIdentifier.fromInternal("does not exist");
      SessionUtils.newSession(CCM_RULE, keyspace, loader);
    }
  }
  