/*
    * 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.text.translate;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  
  import org.junit.jupiter.api.Test;
  
  /**
   * Tests {@link NumericEntityUnescaper}.
   */
  class NumericEntityUnescaperTest {
  
      @Test
      void testCreatesNumericEntityUnescaperOne() {
          final NumericEntityUnescaper.OPTION[] numericEntityUnescaperOPTIONArray = {};
          final NumericEntityUnescaper numericEntityUnescaper = new NumericEntityUnescaper(numericEntityUnescaperOPTIONArray);
          assertEquals("2|y|O7y`&#uVWj", numericEntityUnescaper.translate("2|y|O7y`&#uVWj"));
      }
  
      @Test
      void testCreatesNumericEntityUnescaperTwo() {
          final NumericEntityUnescaper.OPTION[] numericEntityUnescaperOPTIONArray = {};
          final NumericEntityUnescaper numericEntityUnescaper = new NumericEntityUnescaper(numericEntityUnescaperOPTIONArray);
          assertEquals("Ws2v8|O=7NR&#cB", numericEntityUnescaper.translate("Ws2v8|O=7NR&#cB"));
      }
  
      @Test
      void testOutOfBounds() {
          final NumericEntityUnescaper neu = new NumericEntityUnescaper();
          assertEquals("Test &", neu.translate("Test &"), "Failed to ignore when last character is &");
          assertEquals("Test &#", neu.translate("Test &#"), "Failed to ignore when last character is &");
          assertEquals("Test &#x", neu.translate("Test &#x"), "Failed to ignore when last character is &");
          assertEquals("Test &#X", neu.translate("Test &#X"), "Failed to ignore when last character is &");
      }
  
      @Test
      void testOutOfRangeCodePoint() {
          final NumericEntityUnescaper neu = new NumericEntityUnescaper();
          assertEquals("�", neu.translate("�"), "Failed to ignore code point above 0x10FFFF");
          assertEquals("�", neu.translate("�"), "Failed to ignore code point above 0x10FFFF");
          assertEquals("�", neu.translate("�"), "Failed to ignore code point above 0x10FFFF");
      }
  
      @Test
      void testSupplementaryUnescaping() {
          final NumericEntityUnescaper neu = new NumericEntityUnescaper();
          final String input = "𐰢";
          final String expected = "\uD803\uDC22";
          final String result = neu.translate(input);
          assertEquals(expected, result, "Failed to unescape numeric entities supplementary characters");
      }
  
      @Test
      void testUnfinishedEntity() {
          // parse it
          NumericEntityUnescaper neu = new NumericEntityUnescaper(NumericEntityUnescaper.OPTION.semiColonOptional);
          final String input = "Test &#x30 not test";
          String expected = "Test \u0030 not test";
          String result = neu.translate(input);
          assertEquals(expected, result, "Failed to support unfinished entities (i.e. missing semicolon)");
          // ignore it
          neu = new NumericEntityUnescaper();
          expected = input;
          result = neu.translate(input);
          assertEquals(expected, result, "Failed to ignore unfinished entities (i.e. missing semicolon)");
          // fail it
          assertThrows(IllegalArgumentException.class,
                  () -> new NumericEntityUnescaper(NumericEntityUnescaper.OPTION.errorIfNoSemiColon).translate("Test &#x30 not test"));
      }
  }