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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.html;
16  
17  import org.htmlunit.SimpleWebTestCase;
18  import org.junit.jupiter.api.Test;
19  
20  /**
21   * Tests for {@link HtmlHtml}.
22   *
23   * @author Marc Guillemot
24   * @author Ahmed Ashour
25   */
26  public class HtmlHtmlTest extends SimpleWebTestCase {
27  
28      /**
29       * @throws Exception if the test fails
30       */
31      @Test
32      public void attributes() throws Exception {
33          final String htmlContent = "<?xml version=\"1.0\"?>\n"
34              + "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" "
35              + "\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n"
36              + "<html xmlns='http://www.w3.org/1999/xhtml' lang='en' xml:lang='en'>\n"
37              + "<head><title>test</title></head>\n"
38              + "<body></body></html>";
39  
40          final HtmlPage page = loadPage(htmlContent);
41          final HtmlHtml root = (HtmlHtml) page.getDocumentElement();
42          assertEquals("en", root.getLangAttribute());
43          assertEquals("en", root.getXmlLangAttribute());
44      }
45  
46      /**
47       * Regression test for bug #921
48       * canonical XPath for html element was computed to "/html[2]" where a doctype
49       * was present.
50       * @throws Exception if the test fails
51       */
52      @Test
53      public void canonicalXPath() throws Exception {
54          final String htmlContent = "<?xml version=\"1.0\"?>\n"
55              + "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" "
56              + "\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n"
57              + "<html xmlns='http://www.w3.org/1999/xhtml' lang='en' xml:lang='en'>\n"
58              + "<head><title>test</title></head>\n"
59              + "<body></body></html>";
60  
61          final HtmlPage page = loadPage(htmlContent);
62          final HtmlHtml root = (HtmlHtml) page.getDocumentElement();
63          assertEquals("/html", root.getCanonicalXPath());
64      }
65  }