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HtmlUnit is a headless web browser written in Java. It allows high-level manipulation of websites from other Java code, including filling and submitting forms and clicking hyperlinks. It also provides access to the structure and the details within received web pages. HtmlUnit emulates parts of browser behaviour including the lower-level aspects of TCP/IP and HTTP. A sequence such as getPage(url), getLinkWith("Click here"), click() allows a user to navigate through hypertext and obtain web pages that include HTML, JavaScript, Ajax and cookies. This headless browser can deal with HTTPS security, basic HTTP authentication, automatic page redirection and other HTTP headers. It allows Java test code to examine returned pages either as text, an XML DOM, or as collections of forms, tables, and links.[1]
 | |
| Initial release | May 22, 2002 |
|---|---|
| Stable release | 4.4.0
/ July 28, 2024 |
| Repository | |
| Written in | Java |
| Operating system | Cross-platform (JVM) |
| Available in | English |
| Type | Web browser |
| License | Apache License 2.0 |
| Website | https://htmlunit.sourceforge.io/ |
The goal is to simulate real browsers; namely Chrome, Firefox and Edge.
The most common use of HtmlUnit is test automation of web pages, but sometimes it can be used for web scraping, or downloading website content.
Benefits
editDrawbacks
edit- Element layout and rendering can not be tested.[4]
- The JavaScript support is not complete, which is one of the areas of ongoing enhancements.
Used technologies
edit- W3C DOM
- HTTP connection, using Apache HttpComponents
- JavaScript, using forked Rhino
- HTML Parsing, NekoHTML
- CSS: using CSS Parser
- XPath support, using Xalan
Libraries using HtmlUnit
editSee also
edit
References
edit- ^ "HtmlUnit Home". Sourceforge. Retrieved 30 August 2019.
- ^ Beust, Cédric; Suleiman, Hani (15 October 2007). Next Generation Java Testing: TestNG and Advanced Concepts. Pearson Education. ISBN 9780132702270. Retrieved 30 August 2019.
- ^ "HtmlUnit Driver". Github. Retrieved 30 August 2019.
- ^ "Testing HTML Unit". GWT Project. Retrieved 30 August 2019.
Bibliography
edit- Beust, Cédric; Suleiman, Hani (15 October 2007). Next Generation Java Testing: TestNG and Advanced Concepts. Pearson Education. ISBN 9780132702270. pp. 339– (subscription required)
Further reading
edit- Langer, A. "Extending HtmlUnit for test automatisation of Web applications using AJAX"; Betreuer/in (nen): T. Grechenig, M. Bernhart; 183/1, 2009. (subscription required)
- Massol, Vincent; Timothy M. O'Brien (2005). Maven: A Developer's Notebook. O'Reilly Media. pp. 83–86. ISBN 978-0-596-55297-8.
- Tahchiev, Petar; Felipe Leme; Vincent Massol (2010). "12. Presentation Layer Testing". JUnit in Action (2 ed.). Manning. pp. 190–208. ISBN 978-1-935182-02-3.
- Harold, Elliotte Rusty (16 March 2012). Refactoring HTML. Addison-Wesley Professional. ISBN 9780132701877.
- Tong, Ka Iok (23 April 2006). Enjoying Web Development with Tapestry. TipTec Development. ISBN 9781411649132.
- Schalk, Chris; Burns, Ed; Holmes, James (25 August 2006). JavaServer Faces: The Complete Reference. McGraw Hill Professional. ISBN 9780072262407. (subscription required)