/*
    * 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
    *
    *      http://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.cli.bug;
  
  import static org.junit.jupiter.api.Assertions.assertArrayEquals;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.fail;
  
  import java.util.Properties;
  
  import org.apache.commons.cli.CommandLine;
  import org.apache.commons.cli.CommandLineParser;
  import org.apache.commons.cli.DefaultParser;
  import org.apache.commons.cli.MissingArgumentException;
  import org.apache.commons.cli.Option;
  import org.apache.commons.cli.Options;
  import org.apache.commons.cli.ParseException;
  import org.junit.jupiter.api.Test;
  
  /**
   * Demonstrates inconsistencies in parsing Java property-style options.
   */
  public class BugCLI312Test {
      @Test
      public void testNoOptionValues() {
          final Option o1 = Option.builder("A").build();
          final Option o2 = Option.builder().option("D").longOpt("define").numberOfArgs(2).valueSeparator('=').build();
          final Options options = new Options().addOption(o1).addOption(o2);
  
          final CommandLineParser parser = new DefaultParser();
  
          assertThrows(MissingArgumentException.class, () -> parser.parse(options, "-D -A".split(" ")));
      }
  
      @Test
      public void testPropertyStyleOption_withGetOptionProperties() throws ParseException {
          final Option o1 = Option.builder().option("D").longOpt("define").numberOfArgs(2).valueSeparator('=').build();
  
          final Options options = new Options();
          options.addOption(o1);
  
          final CommandLineParser parser = new DefaultParser();
  
          final CommandLine cl = parser.parse(options, "-Dv -Dw=1 -D x=2 -D y -D z=3 other".split(" "));
          assertArrayEquals(new String[] {"v", "w", "1", "x", "2", "y", "z", "3"}, cl.getOptionValues('D'));
  
          final Properties properties = cl.getOptionProperties("D");
          assertEquals("true", properties.getProperty("v"));
          assertEquals("1", properties.getProperty("w"));
          assertEquals("2", properties.getProperty("x"));
          assertEquals("true", properties.getProperty("y"));
          assertEquals("3", properties.getProperty("z"));
          assertEquals(5, properties.size());
          assertEquals("other", cl.getArgList().get(0));
      }
  
      @Test
      public void testPropertyStyleOption_withGetOptions() throws ParseException {
          final Option o1 = Option.builder().option("D").longOpt("define").numberOfArgs(2).valueSeparator('=').build();
  
          final Options options = new Options();
          options.addOption(o1);
  
          final CommandLineParser parser = new DefaultParser();
  
          final CommandLine cl = parser.parse(options, "-Dv -Dw=1 -D x=2 -D y -D z=3 other".split(" "));
          assertArrayEquals(new String[] {"v", "w", "1", "x", "2", "y", "z", "3"}, cl.getOptionValues('D'));
  
          int defineOptionsFound = 0;
          for (final Option o : cl.getOptions()) {
              if ("D".equals(o.getOpt())) {
                  defineOptionsFound++;
  
                  switch (defineOptionsFound) {
                  case 1:
                      assertArrayEquals(new String[] {"v"}, o.getValues());
                      break;
                  case 2:
                      assertArrayEquals(new String[] {"w", "1"}, o.getValues());
                      break;
                  case 3:
                      assertArrayEquals(new String[] {"x", "2"}, o.getValues());
                      break;
                  case 4:
                     assertArrayEquals(new String[] {"y"}, o.getValues());
                     break;
                 case 5:
                     assertArrayEquals(new String[] {"z", "3"}, o.getValues());
                     break;
                 default:
                     fail("Didn't expect " + defineOptionsFound + " occurrences of -D");
                     break;
                 }
             }
         }
         assertEquals("other", cl.getArgList().get(0));
     }
 }