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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/backspace.js'.
23   *
24   * @author Ahmed Ashour
25   * @author Ronald Brill
26   */
27  public class BackspaceTest extends WebDriverTestCase {
28  
29      /**
30       * Tests 'abc\bdef'.match(new RegExp('.[\\b].')).
31       * @throws Exception if the test fails
32       */
33      @Test
34      @Alerts("c\bd")
35      public void test1() throws Exception {
36          test("'abc\\bdef'.match(new RegExp('.[\\\\b].'))");
37      }
38  
39      /**
40       * Tests 'abc\\bdef'.match(new RegExp('.[\\b].')).
41       * @throws Exception if the test fails
42       */
43      @Test
44      @Alerts("null")
45      public void test2() throws Exception {
46          test("'abc\\\\bdef'.match(new RegExp('.[\\\\b].'))");
47      }
48  
49      /**
50       * Tests 'abc\b\b\bdef'.match(new RegExp('c[\\b]{3}d')).
51       * @throws Exception if the test fails
52       */
53      @Test
54      @Alerts("c\b\b\bd")
55      public void test3() throws Exception {
56          test("'abc\\b\\b\\bdef'.match(new RegExp('c[\\\\b]{3}d'))");
57      }
58  
59      /**
60       * Tests 'abc\bdef'.match(new RegExp('[^\\[\\b\\]]+')).
61       * @throws Exception if the test fails
62       */
63      @Test
64      @Alerts("abc")
65      public void test4() throws Exception {
66          test("'abc\\bdef'.match(new RegExp('[^\\\\[\\\\b\\\\]]+'))");
67      }
68  
69      /**
70       * Tests 'abcdef'.match(new RegExp('[^\\[\\b\\]]+')).
71       * @throws Exception if the test fails
72       */
73      @Test
74      @Alerts("abcdef")
75      public void test5() throws Exception {
76          test("'abcdef'.match(new RegExp('[^\\\\[\\\\b\\\\]]+'))");
77      }
78  
79      /**
80       * Tests 'abcdef'.match(/[^\[\b\]]+/).
81       * @throws Exception if the test fails
82       */
83      @Test
84      @Alerts("abcdef")
85      public void test6() throws Exception {
86          test("'abcdef'.match(/[^\\[\\b\\]]+/)");
87      }
88  
89      private void test(final String script) throws Exception {
90          final String html = "<html><head>\n"
91              + "</head><body>\n"
92              + LOG_TEXTAREA
93              + "<script>\n"
94              + LOG_TEXTAREA_FUNCTION
95              + "  log(" + script + ");\n"
96              + "</script>\n"
97              + "</body></html>";
98  
99          loadPageVerifyTextArea2(html);
100     }
101 }