11 Best Unit Testing Frameworks For Selenium Automation
In every software development life cycle (SDLC), unit testing is considered as the first level of testing, which is performed before integration testing. Earlier, manual methods were used to carry out unit testing of an app, which was very time consuming and hectic. However, with time, automation has taken the place of manual approaches that make it easier for programmers to perform unit tests quickly. To automate unit testing, developers need a reliable and secure testing framework that can test all components of the web app with ease. For most testing scenarios, Selenium Automation Testing is considered an ideal option. But, when it comes to unit testing, developers need a modern automated unit testing framework that can create automated unit test cases and quickly integrates with Selenium. Also, as various web apps are developed with different programming languages like Java, C#, Python, etc., a compatible Unit Test Framework is required for every programming language. Today, we will talk about automated unit testing of a web application, and what is the best Unit Test Framework for most popular programming languages for Selenium Test Automation.
What is Unit Testing? Unit testing is the first stage of web application testing, in which specific components or units of a web app are tested. The primary purpose of unit testing is to verify whether each component of the app works as expected. It is carried during the development phase of the application by breaking the application code into smaller units, and then developers test each unit separately.
Most developers prefer to skip unit testing during the development phase, which later leads to higher bugs, increased bug fixing costs, and many other problems. However, if it is executed during the development phase, then it becomes easier to understand the code base and fix bugs early in the development cycle.
Developers use a Unit Test Framework to automate unit tests, which also allow them to verify the correctness of the code. The process of unit testing follows four steps, which includes:
- Generating test cases – Involves writing various test cases for multiple components of a web app
- Review/Rewrite – Reviewing the test cases, and if there are any mistakes, then rewriting the test cases
- Baseline – Determining whether every code line is in a manner or not
- Execution – Finally, executing test cases with the help of a Selenium Grid
If you are planning to run unit tests with Selenium Grid, then you must use the best Unit Test Framework that is ideal for the programming language used in your web app. Below, we have covered the most popular programming languages with their compatible Unit Test Framework.
Selenium JavaFrameworks for Unit Testing Java has always been used as the first language for developing dynamic and robust web applications. It provides the flexibility that developers need to create effective web apps. So, when it comes to unit testing of Java-based web apps, there are minimal Unit Test Frameworks available, such as:
1. JUnit JUnit has always been the first choice of developers to automate unit testing of a java-based application. It was developed by Erich Gamma and Kent Beck as an instance of xUnit. JUnit was specially developed for scripting and performing repetitive test cases. But, it can also be utilized to automate testing of web applications by integrating it with selenium webdriver.
JUnit is a java-based framework, but you still need access to a few things for using this framework to its full potential.
- The latest version of JDK installed on your system
- Adequate knowledge of application development in an object-oriented programming language like Java
- Knowledge of setting up the JUnit test environment on your workstation
2. TestNG TestNG is an open-source testing framework created by Cedric Beust. TestNG covers a wide range of test categories which includes unit, functional, end-to-end, integration. It is being widely used by Java developers to unit test developed web applications. It was designed to overcome the competencies of JUnit. That’s why it is more robust, reliable, and featureful than JUnit. It provides developers with various functionalities, such as grouping, sequencing, and parameterizing, which allow them to create more flexible test cases while eliminating the drawbacks of JUnit and to automate unit tests.
Prerequisites To install and run TestNG scripts on your workstation, you need the following things that are almost similar to JUnit installation:
- Installation of the latest version of JDK on your system
- Adequate knowledge of java programming language
- Experience in installing and using the latest version of Eclipse on the workstation
Prerequisites JEST requires minimal configuration and maintenance to automate testing of your web app. Few resources that you need to run your tests on JEST include:
- Installation of Node on your system to set up NPM environment
- Adequate knowledge of the JEST library before generating unit tests
It’s pretty easy and straightforward to implement Jasmine on your workstation. All you need is a little knowledge of the following things:
- Installation of standalone library files from Jasmine official website
- Installation of the latest version of the Jasmine – Edge
- Adequate knowledge of installing and using IDE like NetBeans