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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.host;
16  
17  import org.htmlunit.WebDriverTestCase;
18  import org.htmlunit.junit.annotation.Alerts;
19  import org.htmlunit.junit.annotation.HtmlUnitNYI;
20  import org.junit.jupiter.api.Test;
21  
22  /**
23   * Tests for {@link InstallTrigger}.
24   *
25   * @author Ronald Brill
26   */
27  public class InstallTriggerTest extends WebDriverTestCase {
28  
29      /**
30       * Strange but this is the reality for browsers.
31       * Because there will be still some sites using this for browser detection the property is
32       * set to null.
33       * https://stackoverflow.com/questions/9847580/how-to-detect-safari-chrome-ie-firefox-and-opera-browsers
34       * https://bugzilla.mozilla.org/show_bug.cgi?id=1442035
35       * @throws Exception if an error occurs
36       */
37      @Test
38      @Alerts(DEFAULT = "undefined",
39              FF = {"null", "object", "{\"enumerable\":true,\"configurable\":true}"},
40              FF_ESR = {"null", "object", "{\"enumerable\":true,\"configurable\":true}"})
41      @HtmlUnitNYI(
42              FF = {"null", "object", "{\"value\":null,\"writable\":true,\"enumerable\":true,\"configurable\":true}"},
43              FF_ESR = {"null", "object", "{\"value\":null,\"writable\":true,\"enumerable\":true,\"configurable\":true}"})
44      public void windowProperty() throws Exception {
45          final String html = DOCTYPE_HTML
46                  + "<html><head>\n"
47                  + "<script>\n"
48                  + LOG_TITLE_FUNCTION
49                  + "  function test() {\n"
50                  + "    log(window.InstallTrigger);\n"
51                  + "    if (typeof InstallTrigger !== 'undefined') {\n"
52                  + "      log(typeof InstallTrigger);\n"
53                  + "      log(JSON.stringify(Object.getOwnPropertyDescriptor(window, 'InstallTrigger')));\n"
54                  + "    }\n"
55                  + "  }\n"
56                  + "</script>\n"
57                  + "</head><body onload='test()'>\n"
58                  + "</body></html>";
59  
60          loadPageVerifyTitle2(html);
61      }
62  }