performance.tar.gz

Puppeteer

XPath, or XML path, is a query language used for locating a node from a DOM. It is one of the most common ways of identifying an element while writing Selenium UI tests.

In this course, you will learn various techniques for writing an expression that identifies a complex locator. In the process, you will also learn the tips and tricks of writing an efficient and optimized locator. We have used puppeteer with Javascript to demonstrate evaluating an XPath expression in this course.

This course is designed for both beginner and intermediate level developers, as well as QA engineers who want to master the art of writing effective XPath expressions.

Mastering XPath for Selenium

## Most common techniques for writing XPath expressions

Now, since we understand the basics of XPaths, let’s look at some of the most common techniques for writing XPath expressions.

> The XPath expressions should always identify the node/element uniquely. In order to do that, we use a combination of the node and its attributes. We try to look for attributes with _static values_ which do not change with every page load.

The table below shows the commonly used attributes and their description:


# Most common techniques for writing XPath expressions

Now, since we understand the basics of XPaths, let’s look at some of the most common techniques for writing XPath expressions.

> The XPath expressions should always identify the node/element uniquely. In order to do that, we use a combination of the node and its attributes. We try to look for attributes with _static values_ which do not change with every page load.

The table below shows the commonly used attributes and their description:


This lesson covers the usage of attributes in writing XPath expressions.

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XPath Expressions using Attributes

Most common techniques for writing XPath expressions