/**
    * 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.pattern.parser.test;
  
  import org.junit.jupiter.api.Test;
  
  import ch.qos.logback.core.Context;
  import ch.qos.logback.core.ContextBase;
  import ch.qos.logback.core.pattern.ExceptionalConverter;
  import ch.qos.logback.core.pattern.PatternLayoutBase;
  import ch.qos.logback.core.status.testUtil.StatusChecker;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  
  abstract public class AbstractPatternLayoutBaseTest<E> {
  
      abstract public PatternLayoutBase<E> getPatternLayoutBase();
  
      abstract public E getEventObject();
  
      abstract public Context getContext();
  
      @Test
      public void testUnStarted() {
          PatternLayoutBase<E> plb = getPatternLayoutBase();
          Context context = new ContextBase();
          plb.setContext(context);
          String s = plb.doLayout(getEventObject());
          assertEquals("", s);
      }
  
  
  
      /**
       * This test checks that the pattern layout implementation starts its
       * converters. ExceptionalConverter throws an exception if it's convert method
       * is called before being started.
       */
      @Test
      public void testConverterStart() {
          PatternLayoutBase<E> plb = getPatternLayoutBase();
          plb.setContext(getContext());
          plb.getInstanceConverterMap().put("EX", getExceptionalConverterClassName());
          plb.setPattern("%EX");
          plb.start();
          String result = plb.doLayout(getEventObject());
          assertFalse(result.contains("%PARSER_ERROR_EX"));
      }
  
      /**
       *
       * @return the class for the ExceptionalConverter (used in tests)
       * @since 1.4.2
       */
      protected String getExceptionalConverterClassName() {
          return ExceptionalConverter.class.getName();
      }
  
      @Test
      public void testStarted() {
          PatternLayoutBase<E> plb = getPatternLayoutBase();
          Context context = new ContextBase();
          plb.setContext(context);
          String s = plb.doLayout(getEventObject());
          assertEquals("", s);
      }
  
      @Test
      public void testNullPattern() {
          // System.out.println("testNullPattern");
          PatternLayoutBase<E> plb = getPatternLayoutBase();
          Context context = new ContextBase();
          plb.setContext(context);
          plb.setPattern(null);
          plb.start();
          String s = plb.doLayout(getEventObject());
          assertEquals("", s);
          StatusChecker checker = new StatusChecker(context.getStatusManager());
          checker.assertContainsMatch("Empty or null pattern.");
      }
  
      @Test
      public void testEmptyPattern() {
          // System.out.println("testNullPattern");
          PatternLayoutBase<E> plb = getPatternLayoutBase();
          Context context = new ContextBase();
          plb.setContext(context);
         plb.setPattern("");
         plb.start();
         String s = plb.doLayout(getEventObject());
         assertEquals("", s);
         StatusChecker checker = new StatusChecker(context.getStatusManager());
         checker.assertContainsMatch("Empty or null pattern.");
     }
 
 }