/**
    * Logback: the reliable, generic, fast and flexible logging framework.
    * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
    *
    * This program and the accompanying materials are dual-licensed under
    * either the terms of the Eclipse Public License v1.0 as published by
    * the Eclipse Foundation
    *
    *   or (per the licensee's choosing)
   *
   * under the terms of the GNU Lesser General Public License version 2.1
   * as published by the Free Software Foundation.
   */
  package ch.qos.logback.core.recovery;
  
  import static org.mockito.Mockito.spy;
  import static org.mockito.Mockito.verify;
  
  import java.io.File;
  
  import org.junit.jupiter.api.BeforeAll;
  import org.junit.jupiter.api.Test;
  
  import ch.qos.logback.core.Context;
  import ch.qos.logback.core.ContextBase;
  import ch.qos.logback.core.FileAppender;
  import ch.qos.logback.core.testUtil.CoreTestConstants;
  import ch.qos.logback.core.testUtil.RandomUtil;
  
  /**
   * @author Ceki Gülcü
   */
  public class ResilientOutputStreamTest {
  
      int diff = RandomUtil.getPositiveInt();
      Context context = new ContextBase();
  
      @BeforeAll
      public static void setUp() {
          File file = new File(CoreTestConstants.OUTPUT_DIR_PREFIX);
          file.mkdirs();
      }
  
      @Test
      public void verifyRecuperationAfterFailure() throws Exception {
          File file = new File(CoreTestConstants.OUTPUT_DIR_PREFIX + "resilient" + diff + ".log");
          ResilientFileOutputStream rfos = new ResilientFileOutputStream(file, true, FileAppender.DEFAULT_BUFFER_SIZE);
          rfos.setContext(context);
  
          ResilientFileOutputStream spy = spy(rfos);
  
          spy.write("a".getBytes());
          spy.flush();
  
          spy.getChannel().close();
          spy.write("b".getBytes());
          spy.flush();
          Thread.sleep(RecoveryCoordinator.BACKOFF_COEFFICIENT_MIN + 10);
          spy.write("c".getBytes());
          spy.flush();
          verify(spy).openNewOutputStream();
  
      }
  
  }