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1   /*
2    * Copyright (c) 2002-2025 Gargoyle Software Inc.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * https://www.apache.org/licenses/LICENSE-2.0
8    *
9    * Unless required by applicable law or agreed to in writing, software
10   * distributed under the License is distributed on an "AS IS" BASIS,
11   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12   * See the License for the specific language governing permissions and
13   * limitations under the License.
14   */
15  package org.htmlunit.javascript.regexp.mozilla.js1_2;
16  
17  import org.htmlunit.WebDriverTestCase;
18  import org.htmlunit.junit.annotation.Alerts;
19  import org.junit.jupiter.api.Test;
20  
21  /**
22   * Tests originally in '/js/src/tests/js1_2/regexp/backslash.js'.
23   *
24   * @author Ahmed Ashour
25   * @author Ronald Brill
26   */
27  public class BackslashTest extends WebDriverTestCase {
28  
29      /**
30       * Tests 'abcde'.match(new RegExp('\e')).
31       * @throws Exception if the test fails
32       */
33      @Test
34      @Alerts("e")
35      public void test1() throws Exception {
36          test("'abcde'.match(new RegExp('\\e'))");
37      }
38  
39      /**
40       * Tests 'ab\\cde'.match(new RegExp('\\\\')).
41       * @throws Exception if the test fails
42       */
43      @Test
44      @Alerts("\\")
45      public void test2() throws Exception {
46          test("'ab\\\\cde'.match(new RegExp('\\\\\\\\'))");
47      }
48  
49      /**
50       * Tests 'ab\\cde'.match(/\\/).
51       * @throws Exception if the test fails
52       */
53      @Test
54      @Alerts("\\")
55      public void test3() throws Exception {
56          test("'ab\\\\cde'.match(/\\\\/)");
57      }
58  
59      /**
60       * Tests 'before ^$*+?.()|{}[] after'.match(new RegExp('\\^\\$\\*\\+\\?\\.\\(\\)\\|\\{\\}\\[\\]')).
61       * @throws Exception if the test fails
62       */
63      @Test
64      @Alerts("^$*+?.()|{}[]")
65      public void test4() throws Exception {
66          test("'before ^$*+?.()|{}[] after'.match("
67                  + "new RegExp('\\\\^\\\\$\\\\*\\\\+\\\\?\\\\.\\\\(\\\\)\\\\|\\\\{\\\\}\\\\[\\\\]'))");
68      }
69  
70      /**
71       * Tests 'before ^$*+?.()|{}[] after'.match(/\^\$\*\+\?\.\(\)\|\{\}\[\]/).
72       * @throws Exception if the test fails
73       */
74      @Test
75      @Alerts("^$*+?.()|{}[]")
76      public void test5() throws Exception {
77          test("'before ^$*+?.()|{}[] after'.match(/\\^\\$\\*\\+\\?\\.\\(\\)\\|\\{\\}\\[\\]/)");
78      }
79  
80      private void test(final String script) throws Exception {
81          final String html = "<html><head><script>\n"
82              + LOG_TITLE_FUNCTION
83              + "  log(" + script + ");\n"
84              + "</script></head><body>\n"
85              + "</body></html>";
86  
87          loadPageVerifyTitle2(html);
88      }
89  }