/**
    * 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 org.slf4j.implTest;
  
  import ch.qos.logback.classic.ClassicConstants;
  import ch.qos.logback.classic.ClassicTestConstants;
  import ch.qos.logback.core.CoreConstants;
  import ch.qos.logback.core.status.NopStatusListener;
  import ch.qos.logback.core.testUtil.RandomUtil;
  import ch.qos.logback.core.testUtil.TeeOutputStream;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.slf4j.LoggerFactoryFriend;
  
  import java.io.PrintStream;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  /**
   * @author Ceki Gülcü
   */
  public class InitializationOutputTest {
  
      int diff = RandomUtil.getPositiveInt();
  
      TeeOutputStream tee;
      PrintStream original;
  
      @BeforeEach
      public void setUp() {
          original = System.out;
          // tee will output bytes on System.out but it will also
          // collect them so that the output can be compared against
          // some expected output data
  
          // keep the console quiet
          tee = new TeeOutputStream(null);
  
          // redirect System.out to tee
          System.setOut(new PrintStream(tee));
      }
  
      @AfterEach
      public void tearDown() {
          System.setOut(original);
          System.clearProperty(ClassicConstants.CONFIG_FILE_PROPERTY);
          System.clearProperty(CoreConstants.STATUS_LISTENER_CLASS_KEY);
      }
  
      @Test
      public void noOutputIfContextHasAStatusListener() {
          System.setProperty(ClassicConstants.CONFIG_FILE_PROPERTY,
                  ClassicTestConstants.INPUT_PREFIX + "issue/logback292.xml");
          System.setProperty(CoreConstants.STATUS_LISTENER_CLASS_KEY, NopStatusListener.class.getName());
  
          LoggerFactoryFriend.reset();
          assertEquals(0, tee.baos.size());
      }
  
  }