JUnit Tutorial

OVERVIEW

JUnit is a popular Java-based, open-source framework that is primarily used for unit testing Java projects. The framework offers support to Selenium for automation testing web-apps or websites. Selenium and JUnit can be used independently of each other, though testing with JUnit and Selenium combined helps to write test cases in a more structured way. Annotations in JUnit are used for identifying test methods. A variety of assertions, grouping tests into test suites, and ease offered in maintaining tests are the major reasons for JUnit’s popularity for cross browser testing.

JUnit Environment Setup

Want to set up a JUnit environment for your first test? In this chapter, we will cover everything from how to download, install, and set up JUnit. We will also dive into how you can use JUnit with Eclipse and IntelliJ – popular IDEs for Java development.

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JUnit With Selenium

Do you know, using Selenium with JUnit is one of the most popular choices to test cloud services for web apps? Why? Due to its capabilities to run the script on multiple browsers and platforms with any language support one chooses. Read more to learn how to perform automation testing with Selenium and JUnit for browser compatibility.

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Run JUnit Test From Command Line

Though Java offers several IDEs using which you can write code and run tests, you would like to execute JUnit from the command line. Why? Because it can be useful for quickly checking whether the tests are running as per expectations (avoiding the need to open the IDE), in this chapter, we look at how to run the JUnit test from the command line.

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JUnit Parameterized Test

Are you tired of writing the same test scripts for different input values? Save time by learning how to perform a parameterized test in JUnit to retrieve data from a data source. To learn more read this blog!

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JUnit Asserts

Automation testing helps ease software testers' lives by letting them automate their repetitive tasks, and open-source test automation frameworks like Selenium. However, what good is automation testing if you cannot verify whether a test case has passed or failed? In this chapter, we will show you how to assert in JUnit, different types of assert in JUnit with examples.

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JUnit Annotations

In this chapter, we would be looking at examples of JUnit annotations in Selenium, their order of execution, and some special JUnit annotations used for a specific purpose. We will also be looking into a collective code for executing each example of JUnit annotation in Selenium. At last, we will perform cross browser testing with Selenium Grid using JUnit annotations.

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JUnit 4 Tests With JUnit 5

CSS Selectors in Selenium are used to identify a user-desired HTML web element. CSS Selectors are combinations of element selectors and values that are used for identifying the web element within the page.

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