content: /*
   * Copyright 2014-2025 Real Logic Limited.
   *
   * Licensed 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
   *
   * https://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 io.aeron.driver;
  
  import io.aeron.Aeron;
  import io.aeron.CommonContext;
  import io.aeron.test.SystemTestWatcher;
  import io.aeron.test.driver.TestMediaDriver;
  import org.agrona.CloseHelper;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.RegisterExtension;
  
  import static io.aeron.CommonContext.generateRandomDirName;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class NextCorrelationIdTest
  {
      @RegisterExtension
      final SystemTestWatcher systemTestWatcher = new SystemTestWatcher();
  
      private TestMediaDriver driver;
  
      @AfterEach
      void after()
      {
          CloseHelper.closeAll(driver);
      }
  
      @Test
      void shouldStoreFilePageSizeInTheCnCFileMetadata()
      {
          driver = TestMediaDriver.launch(new MediaDriver.Context()
              .dirDeleteOnStart(true)
              .dirDeleteOnShutdown(true)
              .threadingMode(ThreadingMode.SHARED)
              .aeronDirectoryName(generateRandomDirName()), systemTestWatcher);
  
          systemTestWatcher.dataCollector().add(driver.context().aeronDirectory());
  
          try (Aeron aeron = Aeron.connect(new Aeron.Context().aeronDirectoryName(driver.aeronDirectoryName())))
          {
              final long prevId = aeron.nextCorrelationId();
              assertEquals(prevId + 1, CommonContext.nextCorrelationId(
                  aeron.context().aeronDirectory(),
                  aeron.context().epochClock(),
                  aeron.context().driverTimeoutMs()));
          }
      }
  }
  