/**
    * 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;
  
  import java.io.BufferedReader;
  import java.io.File;
  import java.io.FileReader;
  import java.io.IOException;
  import java.util.concurrent.CountDownLatch;
  
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.BeforeEach;
  
  import ch.qos.logback.core.contention.RunnableWithCounterAndDone;
  import ch.qos.logback.core.encoder.EchoEncoder;
  import ch.qos.logback.core.status.OnConsoleStatusListener;
  import ch.qos.logback.core.testUtil.CoreTestConstants;
  import ch.qos.logback.core.testUtil.RandomUtil;
  import org.junit.jupiter.api.Test;
  
  public class PrudentFileAppenderInterruptTest {
  
      FileAppender<Object> fa = new FileAppender<Object>();
      Context context = new ContextBase();
      int diff = RandomUtil.getPositiveInt();
      String outputDirStr = CoreTestConstants.OUTPUT_DIR_PREFIX + "resilience-" + diff + "/";
      String logfileStr = outputDirStr + "output.log";
  
      @BeforeEach
      public void setUp() throws InterruptedException {
          context.getStatusManager().add(new OnConsoleStatusListener());
  
          File outputDir = new File(outputDirStr);
          outputDir.mkdirs();
  
          fa.setContext(context);
          fa.setName("FILE");
          fa.setPrudent(true);
          fa.setEncoder(new EchoEncoder<Object>());
          fa.setFile(logfileStr);
          fa.start();
      }
  
      @Test
      public void smoke() throws InterruptedException, IOException {
          InterruptAndLogRunner runner = new InterruptAndLogRunner(fa);
          Thread t = new Thread(runner);
          t.start();
  
          runner.latch.await();
  
          fa.doAppend("hello not interrupted");
  
          FileReader fr = new FileReader(logfileStr);
          BufferedReader br = new BufferedReader(fr);
  
          int totalLines = 0;
          while (br.readLine() != null) {
              totalLines++; // In this test, the content of the file does not matter
          }
          fr.close();
          br.close();
  
          Assertions.assertEquals(2, totalLines, "Incorrect number of logged lines "+outputDirStr);
      }
  
      class InterruptAndLogRunner extends RunnableWithCounterAndDone {
          FileAppender<Object> fa;
          CountDownLatch latch = new CountDownLatch(1); // Just to make sure this is executed before we log in the test
                                                        // method
  
          InterruptAndLogRunner(FileAppender<Object> fa) {
              this.fa = fa;
          }
  
          public void run() {
              Thread.currentThread().interrupt();
              fa.doAppend("hello interrupted");
              latch.countDown();
          }
      }
  
  }