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.BrowserRunner;
19 import org.htmlunit.junit.annotation.Alerts;
20 import org.junit.Test;
21 import org.junit.runner.RunWith;
22 import org.openqa.selenium.By;
23 import org.openqa.selenium.WebDriver;
24
25 /**
26 * Tests for {@link Window} that use background jobs.
27 *
28 * @author Ronald Brill
29 */
30 @RunWith(BrowserRunner.class)
31 public class WindowConcurrency2Test extends WebDriverTestCase {
32
33 /**
34 * When <tt>setInterval()</tt> is called with a 0 millisecond delay, Internet Explorer turns it
35 * into a <tt>setTimeout()</tt> call, and Firefox imposes a minimum timer restriction.
36 *
37 * @throws Exception if an error occurs
38 */
39 @Test
40 @Alerts("xxx")
41 public void setIntervalZeroDelay() throws Exception {
42 final String html = DOCTYPE_HTML
43 + "<html><body><div id='d'></div>\n"
44 + "<script>\n"
45 + " var count = 0;\n"
46
47 + " function doTimeout() {\n"
48 + " document.getElementById('d').innerHTML += 'x';\n"
49 + " count++;\n"
50 + " if (count > 2) {\n"
51 + " clearInterval(id);\n"
52 + " }\n"
53 + " }\n"
54
55 + " var id = setInterval(doTimeout, 0);\n"
56 + "</script>\n"
57 + "</body></html>";
58
59 final WebDriver driver = loadPage2(html);
60
61 verify(() -> driver.findElement(By.id("d")).getText(), getExpectedAlerts()[0]);
62 }
63 }