/**
 * Logback: the reliable, generic, fast and flexible logging framework.
 * Copyright (C) 1999-2013, 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;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import org.junit.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.StatusChecker;
import ch.qos.logback.core.status.StatusManager;
import ch.qos.logback.core.util.StatusPrinter;


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);
    StatusManager sm = context.getStatusManager();
    StatusPrinter.print(sm);
  }

  /**
   * 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", ExceptionalConverter.class.getName());
    plb.setPattern("%EX");
    plb.start();
    String result = plb.doLayout(getEventObject());
    assertFalse(result.contains("%PARSER_ERROR_EX"));
    //System.out.println("========="+result);
  }

  @Test
  public void testStarted() {
    PatternLayoutBase<E> plb = getPatternLayoutBase();
    Context context = new ContextBase();
    plb.setContext(context);
    String s = plb.doLayout(getEventObject());
    assertEquals("", s);
    StatusManager sm = context.getStatusManager();
    StatusPrinter.print(sm);
  }

  @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());
    //StatusPrinter.print(context);
    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());
    //StatusPrinter.print(context);
    checker.assertContainsMatch("Empty or null pattern.");
  }

}
