/*
    * Logback: the reliable, generic, fast and flexible logging framework.
    * Copyright (C) 1999-2024, 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.classic.pattern;
  
  import ch.qos.logback.classic.Level;
  import ch.qos.logback.classic.LoggerContext;
  import ch.qos.logback.classic.PatternLayout;
  import ch.qos.logback.classic.spi.LoggingEvent;
  import ch.qos.logback.core.CoreConstants;
  import org.junit.jupiter.api.Test;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  public class LegacyPatternLayoutTest {
  
      LoggerContext context = new LoggerContext();
  
      /**
       * Test backward compatibility for classes derived from
       * PatternLayout that add custom conversion words.
       */
      @Test public void subPattern() {
          SubPatternLayout layout = new SubPatternLayout();
          layout.setPattern("%"+SubPatternLayout.DOOO);
          layout.setContext(context);
          layout.start();
          LoggingEvent event = new LoggingEvent();
          event.setTimeStamp(0);
          event.setLevel(Level.INFO);
  
          String result = layout.doLayout(event);
          assertEquals("INFO", result);
      }
  
      @Test
      public void fromContext() {
          Map<String, String> registry = (Map<String, String>) this.context
                          .getObject(CoreConstants.PATTERN_RULE_REGISTRY);
          //
          assertNull(registry);
          if(registry == null) {
              registry = new HashMap<String, String>();
              this.context.putObject(CoreConstants.PATTERN_RULE_REGISTRY, registry);
          }
  
          registry.put("legacy", LevelConverter.class.getName());
  
          PatternLayout patternLayout = new PatternLayout();
          patternLayout.setPattern("%legacy");
          patternLayout.setContext(context);
          patternLayout.start();
          LoggingEvent event = new LoggingEvent();
          event.setLevel(Level.WARN);
          String result = patternLayout.doLayout(event);
          assertEquals("WARN", result);
      }
  
  }