/*
    * ====================================================================
    * 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.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  
  package org.apache.hc.core5.net;
  
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.nio.charset.StandardCharsets;
  import java.util.stream.Stream;
  
  import org.hamcrest.CoreMatchers;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.params.ParameterizedTest;
  import org.junit.jupiter.params.provider.MethodSource;
  
  /**
   * Unit tests for {@link PercentCodec}.
   */
  public class TestPercentCodec {
  
      @Test
      public void testCoding() {
          final StringBuilder buf = new StringBuilder();
          PercentCodec.encode(buf, "blah!", StandardCharsets.UTF_8);
          PercentCodec.encode(buf, " ~ ", StandardCharsets.UTF_8);
          PercentCodec.encode(buf, "huh?", StandardCharsets.UTF_8);
          assertThat(buf.toString(), CoreMatchers.equalTo("blah%21%20~%20huh%3F"));
      }
  
      @Test
      public void testDecoding() {
          assertThat(PercentCodec.decode("blah%21%20~%20huh%3F", StandardCharsets.UTF_8),
                  CoreMatchers.equalTo("blah! ~ huh?"));
          assertThat(PercentCodec.decode("blah%21+~%20huh%3F", StandardCharsets.UTF_8),
                  CoreMatchers.equalTo("blah!+~ huh?"));
          assertThat(PercentCodec.decode("blah%21+~%20huh%3F", StandardCharsets.UTF_8, true),
                  CoreMatchers.equalTo("blah! ~ huh?"));
      }
  
      @Test
      public void testDecodingPartialContent() {
          assertThat(PercentCodec.decode("blah%21%20%", StandardCharsets.UTF_8),
                  CoreMatchers.equalTo("blah! %"));
          assertThat(PercentCodec.decode("blah%21%20%a", StandardCharsets.UTF_8),
                  CoreMatchers.equalTo("blah! %a"));
          assertThat(PercentCodec.decode("blah%21%20%wa", StandardCharsets.UTF_8),
                  CoreMatchers.equalTo("blah! %wa"));
      }
  
      @ParameterizedTest
      @MethodSource("params")
      public void testRfc5987EncodingDecoding(final String input, final String expected) {
          assertEquals(expected, PercentCodec.RFC5987.encode(input));
          assertEquals(input, PercentCodec.RFC5987.decode(expected));
      }
  
      static Stream<Object[]> params() {
          return Stream.of(
                  new Object[]{"foo-ä-€.html", "foo-%C3%A4-%E2%82%AC.html"},
                  new Object[]{"世界ーファイル 2.jpg", "%E4%B8%96%E7%95%8C%E3%83%BC%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%202.jpg"},
                  new Object[]{"foo.jpg", "foo.jpg"},
                  new Object[]{"simple", "simple"},  // Unreserved characters
                  new Object[]{"reserved/chars?", "reserved%2Fchars%3F"},  // Reserved characters
                  new Object[]{"", ""},  // Empty string
                  new Object[]{"space test", "space%20test"},  // String with space
                  new Object[]{"ümlaut", "%C3%BCmlaut"}  // Non-ASCII characters
          );
      }
  
      @Test
      public void verifyRfc5987EncodingandDecoding() {
          final String s = "!\"$£%^&*()_-+={[}]:@~;'#,./<>?\\|✓éèæðŃœ";
          assertThat(PercentCodec.RFC5987.decode(PercentCodec.RFC5987.encode(s)), CoreMatchers.equalTo(s));
      }
 
 }