/*
    * Licensed to the Apache Software Foundation (ASF) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The ASF licenses this file to You under the Apache License, Version 2.0
    * (the "License"); you may not use this file except in compliance with
    * the License.  You may obtain a copy of the License at
    *
    *      https://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.apache.commons.lang3.time;
  
  import java.text.ParseException;
  import java.text.SimpleDateFormat;
  import java.util.Calendar;
  import java.util.GregorianCalendar;
  import java.util.Locale;
  import java.util.TimeZone;
  
  import org.apache.commons.lang3.AbstractLangTest;
  import org.apache.commons.lang3.LocaleProblems;
  import org.apache.commons.lang3.LocaleUtils;
  import org.apache.commons.lang3.function.TriFunction;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.params.ParameterizedTest;
  import org.junit.jupiter.params.provider.MethodSource;
  
  /**
   * These tests fail on Java 15 due to a bug which was only fixed for Java 16.
   * <ul>
   * <li>https://bugs.openjdk.java.net/browse/JDK-8248434</li>
   * <li>https://bugs.openjdk.java.net/browse/JDK-8248655</li>
   * </ul>
   */
  class FastDateParserJava15BugTest extends AbstractLangTest {
  
      /** @see org.apache.commons.lang3.time.FastDateParserTest#dateParserParameters() */
      private static final String DATE_PARSER_PARAMETERS = "org.apache.commons.lang3.time.FastDateParserTest#dateParserParameters()";
  
      @Test
      void testJava15BuggyLocaleTest() throws ParseException {
          final String buggyLocaleName = "ff_LR_#Adlm";
          Locale buggyLocale = null;
          for (final Locale locale : LocaleUtils.availableLocaleList()) {
              if (buggyLocaleName.equals(locale.toString())) {
                  buggyLocale = locale;
                  break;
              }
          }
          if (buggyLocale == null) {
              return;
          }
          testSingleLocale(buggyLocale);
      }
  
      @ParameterizedTest
      @MethodSource("org.apache.commons.lang3.LocaleUtils#availableLocaleList()")
      void testJava15BuggyLocaleTestAll(final Locale locale) throws ParseException {
          testSingleLocale(locale);
      }
  
      private void testLocale(final TriFunction<String, TimeZone, Locale, DateParser> dbProvider, final String format, final boolean eraBC, final Calendar cal,
              final Locale locale) {
          LocaleProblems.assumeLocaleSupportedA(locale);
          // ja_JP_JP cannot handle dates before 1868 properly
          if (eraBC && locale.equals(FastDateParser.JAPANESE_IMPERIAL)) {
              return;
          }
          final SimpleDateFormat sdf = new SimpleDateFormat(format, locale);
          final DateParser fdf = dbProvider.apply(format, TimeZone.getDefault(), locale);
          // If parsing fails, a ParseException will be thrown and the test will fail
          FastDateParserTest.checkParse(locale, cal, sdf, fdf);
      }
  
      private void testLocales(final TriFunction<String, TimeZone, Locale, DateParser> dbProvider, final String format,
              final boolean eraBC) throws Exception {
          final Calendar cal = Calendar.getInstance(TimeZones.GMT);
          cal.clear();
          cal.set(2003, Calendar.FEBRUARY, 10);
          if (eraBC) {
              cal.set(Calendar.ERA, GregorianCalendar.BC);
          }
          for (final Locale locale : LocaleUtils.availableLocaleList()) {
              testLocale(dbProvider, format, eraBC, cal, locale);
          }
      }
  
      @ParameterizedTest
      @MethodSource(DATE_PARSER_PARAMETERS)
      void testLocales_Long_AD(final TriFunction<String, TimeZone, Locale, DateParser> dpProvider)
          throws Exception {
          testLocales(dpProvider, FastDateParserTest.LONG_FORMAT, false);
     }
 
     @ParameterizedTest
     @MethodSource(DATE_PARSER_PARAMETERS)
     void testLocales_Long_BC(final TriFunction<String, TimeZone, Locale, DateParser> dpProvider)
         throws Exception {
         testLocales(dpProvider, FastDateParserTest.LONG_FORMAT, true);
     }
 
     @ParameterizedTest
     @MethodSource(DATE_PARSER_PARAMETERS)
     void testLocales_LongNoEra_AD(final TriFunction<String, TimeZone, Locale, DateParser> dpProvider)
         throws Exception {
         testLocales(dpProvider, FastDateParserTest.LONG_FORMAT_NOERA, false);
     }
 
     @ParameterizedTest
     @MethodSource(DATE_PARSER_PARAMETERS)
     void testLocales_LongNoEra_BC(final TriFunction<String, TimeZone, Locale, DateParser> dpProvider)
         throws Exception {
         testLocales(dpProvider, FastDateParserTest.LONG_FORMAT_NOERA, true);
     }
 
     @ParameterizedTest
     @MethodSource(DATE_PARSER_PARAMETERS)
     void testLocales_Short_AD(final TriFunction<String, TimeZone, Locale, DateParser> dpProvider)
         throws Exception {
         testLocales(dpProvider, FastDateParserTest.SHORT_FORMAT, false);
     }
 
     @ParameterizedTest
     @MethodSource(DATE_PARSER_PARAMETERS)
     void testLocales_Short_BC(final TriFunction<String, TimeZone, Locale, DateParser> dpProvider)
         throws Exception {
         testLocales(dpProvider, FastDateParserTest.SHORT_FORMAT, true);
     }
 
     @ParameterizedTest
     @MethodSource(DATE_PARSER_PARAMETERS)
     void testLocales_ShortNoEra_AD(final TriFunction<String, TimeZone, Locale, DateParser> dpProvider)
         throws Exception {
         testLocales(dpProvider, FastDateParserTest.SHORT_FORMAT_NOERA, false);
     }
 
     @ParameterizedTest
     @MethodSource(DATE_PARSER_PARAMETERS)
     void testLocales_ShortNoEra_BC(final TriFunction<String, TimeZone, Locale, DateParser> dpProvider)
         throws Exception {
         testLocales(dpProvider, FastDateParserTest.SHORT_FORMAT_NOERA, true);
     }
 
     private void testSingleLocale(final Locale locale) throws ParseException {
         final Calendar cal = Calendar.getInstance(TimeZones.GMT);
         cal.clear();
         cal.set(2003, Calendar.FEBRUARY, 10);
         final SimpleDateFormat sdf = new SimpleDateFormat(FastDateParserTest.LONG_FORMAT, locale);
         final String formattedDate = sdf.format(cal.getTime());
         sdf.parse(formattedDate);
         sdf.parse(formattedDate.toUpperCase(locale));
         sdf.parse(formattedDate.toLowerCase(locale));
     }
 
 }