/**
    * 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.helpers;
  
  import ch.qos.logback.core.Context;
  import ch.qos.logback.core.ContextBase;
  import ch.qos.logback.core.rolling.helper.FileFilterUtil;
  import ch.qos.logback.core.rolling.helper.FileNamePattern;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  
  import java.io.File;
  import java.text.ParseException;
  import java.text.SimpleDateFormat;
  
  public class FileFilterUtilTest {
  
      Context context = new ContextBase();
  
      // see also http://jira.qos.ch/browse/LBCORE-164
      @Test
      public void findHighestCounterTest() throws ParseException {
          String[] sa = new String[] { "c:/log/debug-old-2010-08-10.0.log", "c:/log/debug-old-2010-08-10.1.log",
                  "c:/log/debug-old-2010-08-10.10.log", "c:/log/debug-old-2010-08-10.11.log",
                  "c:/log/debug-old-2010-08-10.12.log", "c:/log/debug-old-2010-08-10.2.log",
                  "c:/log/debug-old-2010-08-10.3.log", "c:/log/debug-old-2010-08-10.4.log",
                  "c:/log/debug-old-2010-08-10.5.log", "c:/log/debug-old-2010-08-10.6.log",
                  "c:/log/debug-old-2010-08-10.7.log", "c:/log/debug-old-2010-08-10.8.log",
                  "c:/log/debug-old-2010-08-10.9.log" };
  
          File[] matchingFileArray = new File[sa.length];
          for (int i = 0; i < sa.length; i++) {
              matchingFileArray[i] = new File(sa[i]);
          }
          FileNamePattern fnp = new FileNamePattern("c:/log/debug-old-%d{yyyy-MM-dd}.%i.log", context);
          SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
          String rexexp = null;
          rexexp = fnp.toRegexForFixedDate(sdf.parse("2010-08-10"));
          String stemRegex = FileFilterUtil.afterLastSlash(rexexp);
          int result = FileFilterUtil.findHighestCounter(matchingFileArray, stemRegex);
          Assertions.assertEquals(12, result);
      }
  }