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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.htmlunit.junit.BrowserRunner;
19  import org.junit.Test;
20  import org.junit.runner.RunWith;
21  
22  /**
23   * Tests for {@link HtmlHtml}.
24   *
25   * @author Marc Guillemot
26   * @author Ahmed Ashour
27   */
28  @RunWith(BrowserRunner.class)
29  public class HtmlHtmlTest extends SimpleWebTestCase {
30  
31      /**
32       * @throws Exception if the test fails
33       */
34      @Test
35      public void attributes() throws Exception {
36          final String htmlContent = "<?xml version=\"1.0\"?>\n"
37              + "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" "
38              + "\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n"
39              + "<html xmlns='http://www.w3.org/1999/xhtml' lang='en' xml:lang='en'>\n"
40              + "<head><title>test</title></head>\n"
41              + "<body></body></html>";
42  
43          final HtmlPage page = loadPage(htmlContent);
44          final HtmlHtml root = (HtmlHtml) page.getDocumentElement();
45          assertEquals("en", root.getLangAttribute());
46          assertEquals("en", root.getXmlLangAttribute());
47      }
48  
49      /**
50       * Regression test for bug #921
51       * canonical XPath for html element was computed to "/html[2]" where a doctype
52       * was present.
53       * @throws Exception if the test fails
54       */
55      @Test
56      public void canonicalXPath() throws Exception {
57          final String htmlContent = "<?xml version=\"1.0\"?>\n"
58              + "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" "
59              + "\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n"
60              + "<html xmlns='http://www.w3.org/1999/xhtml' lang='en' xml:lang='en'>\n"
61              + "<head><title>test</title></head>\n"
62              + "<body></body></html>";
63  
64          final HtmlPage page = loadPage(htmlContent);
65          final HtmlHtml root = (HtmlHtml) page.getDocumentElement();
66          assertEquals("/html", root.getCanonicalXPath());
67      }
68  }