Last updated on Nov 20, 2023
Selenium is an open-source, most popular web automation testing tool that supports multiple browsers & OS. XPath in Selenium is an XML Path and a syntax useful for locating an element on a web page. Locating any element on the web page uses XML path or XPath expression. Further, XPath in Selenium is useful for navigating through the HTML structure of the web page.
Moreover, XPath uses HTML DOM structure to find any element on a web page for both HTML and XML documents.
The syntax for XPath In Selenium
XPath in Selenium holds the element’s location on the web page. The basic syntax for XML Path Selenium is as follows-
The meaning of each expression in the syntax is-
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The XML documents are the text files that contain XML data, including elements and other markups, in a sequential package. Further, it can include a wide variety of data such as numbers databases, numbers of a mathematical equation, etc. You can understand XML document with an example:-
AK & Co.
Here, the above code is divided into two parts- Document Prolog & Document Elements. Let us discuss them in brief.
The document prolog appears at the top of the document, beforE the root document element. It includes XML and Document type declaration.
These major building blocks of XML segregate the document into different sections. Each of these document sections perform a particular purpose. Moreover, you can easily segregate a document into different sections so that search engines can use it. Further, these document elements can be the containers having text and other elements combined.
In Selenium, the absolute XPath is the direct path to find the element. This Xpath begins with the “/” (Slash) symbol and helps select the element from the root. The major drawback of this XPath is that if you change the path of the element or attribute, the absolute XPath will fail.
The Relative XPath in Selenium begins with the double forward slash “//” symbol and from the middle of the HTML DOM. You can search elements anywhere on the web page as it doesn’t need to write a lengthy Xpath. This XPath is mainly considered as it is not a complete path from the root element.
For example: //input[@id=‘ap_email’]
Suppose You launch Google Chrome and navigate to google.com. Then locate the search bar utilising XPath. By analysing the web element there is an input tag and attributes like class and id. Utilise the tag name and given attributes to create XPath that will locate the search bar.
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Click the Elements tab and press Ctrl + F to open a search box in chromes developers tool. Write XPath string selector and it will try to search based on that criteria. In the image given above, it has an input tag. //input implies tagname. Use the name attribute and pass ‘q’ as its value. It provides XPath expression as shown below:
It has focused on the element that implies this specific element was located utilising XPath.
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Automation utilizing Selenium is unquestionably an incredible innovation which gives numerous approaches to distinguish an article or component on the website page. Be that as it may, in some cases we do deal with issues in recognizing the articles on a page that have similar credits. Some cases can be: components having similar credits and names or with more than one button with similar name and ids. It's trying to train selenium to distinguish a specific item on a website page and it is the place where XPath functions to serve as the hero.
Frequently asked Selenium Interview Questions and Answers !!
Selenium involves different functions. The three of the most broadly utilized functions are given below:
The basic XPath expression selects nodes or a list of many nodes based on various elements or attributes such as ID, Name, ClassName, etc. It selects them from the XML documents. The syntax we can use for the basic XPath is -
It is a method used in XPath expression when the value of an attribute or element dynamically changes. You can easily find the elements with a partial text using the “Contains” feature in the XPath expression. Now understand this with the below example.:-
The above example denotes that the full value of the element type is submitted, but we use the partial text ‘sub’ here to find the element. Thus, in the above example, we tried to find the element by giving a partial text of the attribute “submit”.
Here, we use two conditions, first or second condition, among which one condition must be “True” to execute it. This method is still applicable if any one or both conditions are “true”. It means that any conditions should be true to find the element. The expression we can use for this is-
Xpath=//*[@type='submit' or @name='btnReset']
The above XPath expression will help determine whether a single or both conditions are ‘True’.
Similarly, in the “And” XPath expression, also we use two conditions, but both conditions should be “true” to locate the element. If any one of the conditions becomes “false”, then the expression cannot find the element. The syntax we can use for this function is-
Xpath=//input[@type='submit' and @name='btnLogin']
The function Xpath-Starts-with() in the Xpath functions is useful to find the element whose attribute value changes in some conditions. Here the value changes with the refresh of the page or by performing dynamic actions on the webpage. In this method, the initial text of the attribute should be in parallel to locate the element whose attribute value changes interactively.
Further, you can also find the elements whose attribute value doesn’t change or remain static. You can understand this function’s use by the following example:-
The above syntax shows that two different elements start with the initial id “message”. Here, you can use the Xpath-starts with function to check whose attribute value changes or remains static.
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In Selenium WebDriver, the function XPath Text() is a built-in function useful to locate elements based on the web element’s text. Using this function, you can find the same text element. Moreover, the elements that you locate must be in a string format.
Using the above expression having text function, you can locate the element that will show the exact match of the text.
This method in XPath functions is useful for finding complex or changing elements. However, we can see the following XPath axes methods which we can use:-
The above expression helps to identify all the input elements before the currently given nodes.
Many div(s) match with the parent, but if you want to focus on a specific element. For this you can use the below xpath syntax-
XPath or an XML Path is used to locate any element or navigate through the HTML structure of a webpage. It is generally used for automation purposes and in cases where it is difficult to find elements using locators like name, class, ID, etc. However, it is the most important among the locators useful in Selenium to identify web elements. Also, it is a handy locator for the testers of web pages.
Thus, learning about XPath in Selenium will help you quickly identify a web element on a web page.
As a senior technical content writer for HRK tainings, srivalli patchava has a greater understanding of today's data-driven environment, which includes key aspects of data management and IT organizations. She manages the task of creating great content in the areas of software testing, DevOps, Robotic process automation. Connects with her on Linkedin and Twitter.
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