8 Best Java Testing Tools & Frameworks in 2022

By | January 14, 2022
Java Testing Tools

Java is one of the most popular programming languages that allow you to create a wide variety of web apps ranging from fairly basic to highly feature-rich applications, however, Java apps come with certain risks. The applications developed with Java can manage heavy loads without compromising functionality or performance.

In general, the most significant reason behind the stability and smooth functioning of most Java applications out there is that they undergo rigorous rounds of testing.

Java testing highlights any possible bugs, anomalies, and pitfalls in back-end code that could otherwise exert functional huddles in an application. Therefore, one is always advised to run several tests on a Java app before its launch and even when customers are using it. This ensures proper maintenance of Java applications so that they can perform well all the time.

Let’s walk through some of the top-rated Java testing tools that will help you ensure optimal performance of your Java applications.

Best Java Testing Tools to Use

1. Arquillian

Known as an innovative and extensible automation testing solution for Java apps, Arquillian is an ideal choice for Java developers and testers. It allows hassle-free creation and set-up of integration, acceptance, and functional tests for Java apps.

It can independently manage the lifecycle of containers and dependent classes, bundle test cases, and much more. The efficient process of bug tracking assists you to develop bug-free Java applications.


  • It can deploy archives into containers. 
  • Eases the whole process of test execution, result capturing, and report creation.
  • Supports integration with JUnit.
  • It can also run Ant and Maven test plugins. 
  • It is IDE-friendly.
  • Provides case path control.
  • It can detect and rectify anomalies in the server.

The platform can be easily adopted by novice testers. Also, Arquillian can flexibly integrate with well-known tools. It comes with endless facilities to explore and implement Java testing. The platform is an extensible solution for Java testing and has very few limitations.

2. TestNG

Specifically designed for Java testing, TestNG is inspired by JUnit and NUnit. It is a powerful and robust solution for automated java testing that helps programmers to develop robust and high-performance Java applications.

It can run tests in massive thread pools with different policies. TestNG is developed with flexible test configurations to ensure optimum and scalable testing. The platform also provides support for data-driven testing for different parameters. The ability to favour grouping and sequencing has made TestNG a popular testing tool among professional software testers and analysts.


  • It is equipped with various before and after annotation options. 
  • It can execute the colour parametrization of tests.
  • Supports data-driven testing.
  • It has an Open API.
  • Ensures smooth multi-thread execution.
  • Comes with advanced reporting capability.
  • Equipped with default JDK functions for runtime and logging with no dependencies.

TestNG makes parallel testing an easy drill and doesn’t propose any stringent limitations. It offers 3 major advantages:

  1. Easy to leverage annotations.
  2. Seamless grouping of test cases.
  3. Support for parallel testing.

The platform is supported by various tools as well as plug-ins such as Maven, IDEA, Eclipse, IntelliJ, NetBeans, etc.

3. JUnit

Being one of the most popular Java testing tools, JUnit is efficient and reliable. It has significant utility in the development of test-driven frameworks. It is a part of a family of unit testing frame

works, collectively known as xUnit.


  • The platform is linked as a JAR at compile-time.
  • It allows you to write redundant tests.
  • Supports numerous IDEs.
  • Allows you to perform unit as well as integration testing of Java apps.
  • It is an open-source tool.
  • Comes with simple and adaptable usage points.
  • It helps to organize tests into test suites having test cases as well as other test suites.
  • Offers precise exception handling.
  • Supports nested test classes.
  • It is backwards compatible.
  • Provides result in a unique progress bar: the green colour indicates that the test is running smoothly whereas the red colour in the progress bar indicates failure of the test. 

The latest version available is JUnit5.

4. Mockito

An open-source Java testing tool, Mockito is available for use under the MIT license. It lets programmers and professional developers create and test double objects for test-driven development (TDD) or Behavior-driven development (BDD). It supports complete automation in Java testing.


  • Equipped with a simple API.
  • Generates readable tests.
  • Comprehensible documentation is available.
  • Assists you with the creation of independent, robust, and stable tests.
  • Provides faster and better test results.
  • Mitigates outside dependencies throughout the testing process.
  • Mockito can help identify the behavior or nature of a system under test or SUT.

Mockito also removes the expect-run-verify pattern with the aid of eliminating expectations specification. This brings a major change in the testing process and allows rapid and easy modifications.

5. JWalk

Let’s forward our discussion to JWalk, which is a unit testing toolkit for Java. It is specifically designed and programmed to provide support for the testing paradigm known as lazy systematic unit testing. JWalk is a smart solution for Java testing.

It can practically perform various tests on any compiled Java class provided by the programmer.


  • It can test conformance to lazy specification. 
  • It can run static as well as dynamic analysis. 
  • Enables programmers and developers to retest the modified code frequently.

6. FitNesse

Another tool for Java testing, FitNesse is equipped with some great and valuable features. It is ideal for professional as well as beginner programmers. The tool can be accessed under CPL license. 


  • It is a reliable and valuable Java testing tool.
  • Provides quick results.
  • It can predict feature feedback early and frequently in the project.
  • All tests are deterministic.
  • Easy and quick to set up.
  • Also provides acceptance and requirements testing
  • It can interpret the wiki page 

7. TagUnit

TagUnit is another popular Java testing tool. It is equipped with test cases, test suites, and assertion-type written tests. TagUnit is a tag library for getting custom tags within JSP pages.

It allows the user to perform assertions on the content generated by custom tags. In addition, it can also check whether the tag handler is loadable or not. 

8. The Grinder

Grinder enables programmers and developers to easily run tests on Java apps using injector machines. It can practically work with anything that is equipped with Java API such as HTTP web servers, REST web services, SOAP, etc.

The in-built GUI console allows multiple load injectors to be controlled and monitored along with automatic management of user connections, cookies, SSL connection, throttling, proxy ware, etc.


  • The platform is distributed under a BSD license.
  • Depends on products such as HTTPClient, Jython, Clojure, etc. 
  • The platform is compatible with any operating system that supports J2SE 1.4 and above.
  • It can simulate web browsers that support HTTP and HTTPS.
  • It can also assist in the testing of web service protocols such as XML-RPC and SOAP.
  • You can test the database with JDBC.
  • You can run tests from systems based on MOM and RPC leveraging protocols such as RMI/JRMP, JMS, etc.


Programmers and expert software analysts often prefer professional testing tools to make sure that they develop Java applications with minimal bugs. The testing process aims to highlight bugs within apps so that they can be fixed at the earliest. The whole process is always end-to-end managed and optimally executed with the aid of automation testing tools.

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