Automate Effortlessly Using these 24 Amazing Unit Testing Tools

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Unit testing is a fundamental and significant practice step in software testing, focusing on testing individual units of source code.

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Many Unit Testing facts are well-known among software professionals, but we sometimes need to brush up on our knowledge to stay current.

This article will look at the top tools for Unit Testing for developers’ use.

List Of 25 Best Unit Testing Tools:

#01 JMockit

Features of JMockit:

  • JMockit is an open-source unit testing tool with various tools and APIs.
  • Developers use these tools and APIs to create tests with TestNG or JUnit.
  • JMockit is thought to be an alternative to the traditional use of the mock object.
  • This tool offers three types of code coverage: line coverage, path coverage, and data coverage.
  • JMockit can mock final classes and final, private, and static methods, whereas other mocking frameworks can only do a subset of these.
  • JMockit can verify these particular objects through regular assertions with custom validation methods for each matching object. For example, it can capture instances and mock implementations as the test runs without knowing anything about the actual implementation classes.
  • The API documentation is also very comprehensive, with detailed explanations for all elements of the mocking API.

Pros of JMockit:

  • JMockit can mock final classes and final, private, and static methods, whereas other mocking frameworks can only do a subset of these.
  • JMockit can verify these special objects through regular assertions with custom validation methods for each matching object. For example, it can capture instances and mock implementations as the test runs without knowing anything about the actual implementation classes.
  • The official tutorial includes detailed explanations and discussions of all methods, annotations, fields, and so on and a plethora of simple examples.
  • The API documentation is also very comprehensive, with detailed explanations for all elements of the mocking API.

Cons of JMockit:

  • There are only three contributors on GitHub, and nearly all of the work is done by a single developer.
  • The learning curve will be somewhat steep because JMockit has a much broader scope than other mocking frameworks.

#02 Emma

Features  of Emma:

  • Emma is an open-source toolkit for calculating Java Code Coverage.
  • It enables rapid code coverage for every developer on the team.
  • Emma supports class, line, method, basic block coverage, and report formats such as text, HTML, XML, and so on.
  • It is entirely Java-based, with no external library dependencies or access to the source code.
  • Items with coverage levels below user-specified thresholds can be highlighted in output reports.
  • Coverage data obtained from various instruments or test runs can be combined.
  • EMMA is quite fast: the runtime overhead of additional instrumentation is small (5-20%), and the bytecode instrument or itself is high-speed (limited mainly by file I/O speed). Memory overhead per Java class is a few hundred bytes.
  • EMMA can instrument individuals.class files as well as entire. Jars (in place, if desired). It is also possible to perform efficient coverage subset filtering.
  • On an equal footing, Makefile and ANT build integration are supported.

Pros and cons of Emma:

  • This is a free tool with excellent performance.
  • It is simple to use and meets all code coverage criteria.
  • Its use in Java software is restricted.
  • It is ANT-compliant.
  • It supports class instrumentation and can be run offline or in the cloud.
  • The main disadvantage is that it does not support the most recent version of Java and is poorly maintained.

Read Also: 15 Best Automation Testing Tools That Can Ease Your Testing Journey

#03 Quilt HTTP

Features of Quilt HTTP:

  • The quilt is a free cross-platform software utility and Java software development tool.
  • It is possible to measure Java program coverage during unit testing with Statement Coverage.
  • It only manipulates JVM classes and machine code without working on the source code ( Java Virtual machine)
  • Quilt supports JUnit interoperability, controlling flow graphs, and report generation.

#04 SimpleTest

Features of SimpleTest:

  • SimpleTest is a PHP unit testing framework available for free and open source.
  • This framework supports SSL, forms, proxies, and basic authentication.
  • SimpleTest’s test case classes and methods and codes are extended from base test classes.
  • The autorun.php.file is included with SimpleTest and converted test cases into executable test scripts.

#05 Typemock

Features of Typemock:

  • Typemock Isolator is an open-source framework for testing system code free to use.
  • Typemock tool significantly reduces the amount of time required for bug fixing and value delivery.
  • It has a simple API and entry methods that do not require any changes to legacy code.
  • Typemock Isolator is primarily designed for Windows and is written in C and C++.
  • It is simple to understand and covers a wide range of codes.

#06 LDRA

Features of LDRA:

  • LDRA is a proprietary tool suite for static and dynamic software system analysis and testing.
  • Covers statements, decisions, branches, and linear code sequence.
  • It is a unified tool that provides quality assurance (requirement analysis to deployment) from start to finish.
  • It is the ultimate tool for software certification, tracing requirements, adhering to coding standards, and reporting coverage analysis.

#07 Microsoft unit testing Framework

Features of Microsoft unit testing Framework:

  • Microsoft Unit Testing Framework is a proprietary tool that aids in testing in Visual Studio VisualStudio. Tools for Testing – The namespace to invoke the unit test is UnitTesting.
  • It allows for data-driven testing by utilizing a set of elements, methods, and attributes.
  • Explorer of Tests—
  • Unit tests can be run, and Test Explorer can view the results. For example, you can use any unit testing framework with a Test Explorer adapter, including third-party frameworks.
  • Tools for code coverage—
  • You can determine your unit tests exercise product code with a single command in Test Explorer.
  • Microsoft Fakes isolation framework—This framework can generate substitute classes and methods for production and system.NET code that cause dependencies in the code under test. You control the behavior and output of the dependency object by implementing fake delegates for a function.

#08 Unity Test Tools

Features of Unity Test Tools:

  • Provide a free framework for developing and running automated tests.
  • This tool comprises unit tests, integration tests, and assertion components.
  • Unit tests are the most basic and efficient, with an automatic execution option.
  • The integration framework is used to test the integration of components and objects.
  • The final one, Assertion Components, is used for hard debugging.

Pricing of Unity Test Tools:

  • Unity pro – $1800 per seat 1 year
  • Unity Plus – $399 per seat for 1 year

#09 Karma

Features of Karma:

  • Karma is an open-source testing framework that offers a productive testing framework. It is a JavaScript test runner that runs tests on real devices.
  • Allows for simple debugging and is easily integrated with Jenkins, Travis, or Semaphore.
  • Karma is also known as ‘Testicular,’ which stands for Spectacular Test Runner for javascript.

#10 Cantata

Features of Cantata:

  • Cantata is a commercial framework that offers advanced productivity and a testing environment.
  • This is used for C and C++ unit and integration testing.
  • A robust automated tool with a reusable harness can perform robustness testing on large data sets.
  • Test scripts are written in C/C++, and tests are generated by parsing source code and calling interface control.
  • It also includes a test. Script Manager supports static analysis and requirement-based testing.

#11 Jasmine

Features of Jasmine:

  • It is a JavaScript unit testing framework that employs behavior-driven testing.
  • Jasmine is a free tool that runs on JavaScript-enabled platforms and supports asynchronous specifications.
  • Other unit testing frameworks have had a much more significant influence on this framework.
  • Jasmine does not need DOM and includes basic syntax for writing test cases.
  • The current version of the tool is 2.4.1

#12 Mocha 

Features of Mocha:

  • It is an open-source JavaScript Testing Framework it runs on Node.js.
  • This tool, which is hosted on GitHub, allows for flexible reporting.
  • Mocha includes features such as a test coverage report, browser support, and the ability to report test duration.
  • It also includes a JavaScript API for running tests and a comprehensive test interface.

Pricing of Mocha:

  • Available on demand

#13 TestNG

Features of TestNG:

  • It is an open-source automation testing framework for the Java programming language like JUnit. It features concurrent testing and annotation support, and JUnit and NUnit heavily influence it.
  • Parameterized and data-driven testing and unit, functional, and integration testing are all supported by TestNG.
  • It has been proven effective with a powerful execution model and a flexible test configuration.

#14 JUnit

Features of JUnit:

  • It is an open-source automation testing framework for the Java programming language like JUnit. It features concurrent testing and annotation support, and JUnit and NUnit heavily influence it.
  • Parameterized and data-driven testing and unit, functional, and integration testing are all supported by TestNG.
  • It has been proven effective with a powerful execution model and a flexible test configuration.

Pricing of JUnit:

  • Available on demand

#15 Parasoft

Features of Parasoft:

  • It is a proprietary automated unit testing tool for C and C++ that offers static analysis for both. This tool efficiently delivers high-coverage test suites and customized tests.
  • It is used to identify functional and crash-causing issues.
  • Aids in executing realistic functional tests include an object repository and a stubbing framework.
  • The best features of Parasoft are runtime error detection, requirement traceability, debugger integration, and detailed reporting.

Pros and Cons of Parasoft:

  • It is extremely expensive to use.
  • It is an excellent tool for producing high-quality products while also serving as a multipurpose solution for reducing time and risk.
  • The reports and analyses are simple to understand and cover all quality aspects.

Pricing of Parasoft:

  • Available on demand
unit testing

#16 JTest

Features of JTest:

  • JTest is a Parasoft Unit Testing solution that was created and designed.
  • It is widely used for Java application testing and supports static code analysis.
  • It also includes static data flow analysis, metrics analysis, runtime error detection, and so on.
  • JTest also performs regression testing, end-to-end functional testing, and load testing for complex applications.
  • It aids in the capture of actual code behavior and the generation of JUnit tests for coverage analysis.

Pricing of JTest:

  • Available on demand

#17 NUnit

Features of NUnit:

  • NUnit is a unit testing framework that runs on the.NET platform.
  • It is a free tool that allows you to write test scripts manually.
  • NUnit works in the same way that JUnit does in Java. It supports data-driven tests that can run concurrently.
  • Loads and runs tests using Console Runner.

Pros of NUnit:

  • Open Source independent test runner
  • Integration with Third-Party Tools for Continual Integration ( Jenkins etc)
  • Reliable instrument
  • Quick
  • Running test cases on a case-by-case basis
  • Asynchronous operation
  • Report creation

Cons of NUnit:

  • The application is not tightly integrated with Visual Studio.
  • There is no automatic generation of test code.
  • There is no automatic bug linking, and configuration is required.

Pricing of NUnit:

  • Available on demand

#18 Diffblue

Features of Diffblue:

  • Java 8 and 11 are supported – on Spring and Spring Boot.
  • Supports Maven and Gradle-based projects, as well as Mockito for mock frameworks. Integrates with JaCoCo and SonarQube for coverage measurement.
  • For quick feedback, it is integrated with CI/CD pipelines.
  • Build tools, mocking frameworks, and coverage tools are all supported.

Pros of Diffblue:

  • It saves time by automating the creation of Java unit tests.
  • For quick feedback, it is integrated with CI/CD pipelines.
  • Build tools, mocking frameworks, and coverage tools are all supported.
  • Increased coverage aids in the detection of more regression bugs.

Cons of Diffblue:

  • Only the Java programming language is supported.
  • The plugin is only available for IDEs; other editors, such as Eclipse, cannot use it.
  • It is not a replacement for unit tests but rather an addition that may supplement existing unit tests. As a result, there is an additional tool that must be learned/integrated and may require some level of maintenance.

Pricing of Diffblue:

  • Diffblue standard – $175
  • Standard Edition – $186
  • DevOps Edition – $175
  • Enterprise Edition – contact for pricing

#19 Symflower

Features of Symflower:

  • With higher test coverage, automated analysis and unit tests can save up to 30% on development costs.
  • Creating unit tests does not necessitate any human intervention.
  • Common programming language constructs are supported.
  • Creates automated tests for meaningful test cases by using mathematical models.
  • Increases test coverage.
  • Analyze source code to generate test data. It also ensures that any changes made to the application are recorded.

Pros of Symflower:

  • Creates automated tests for meaningful test cases by using mathematical models.
  • Increases test coverage.
  • Analyze source code to generate test data. It also ensures that any changes made to the application are recorded.

Cons of Symflower:

  • Currently, only Java and Go are supported – Other languages, such as C++, C#, and Javascript, will be supported in the future.
  • It must be installed on-premises or in the cloud – it is a separate tool that does not integrate with existing IDEs and editors.
  • The minimum memory requirements are quite high, with eight cores and 4 GB RAM.
  • The license is pricey.

Pricing of Symflower:

  • SymFlower CLI
    • Community version: free
    • Team version – 100€ per user/ month , 1 000€ per user/year
  • SymFlower Server
    • On-Premise setup – €5500/month
    • Cloud setup – €4900/month

#20 Tricentis

Features of Tricentis:

  • Supports a variety of testing methods, including exploratory, manual, automated, and load testing.
  • Tests are business-readable specifications that non-technical people can understand.
  • Covers testing for various technologies, including cross-browser, SAP, mobile, and Java testing.
  • Support for test planning and reporting/analytics.
  • Enterprise-level software that meets end-to-end testing requirements.
  • Service virtualization and tests with record/playback are supported.

Pros of Tricentis:

  • Enterprise-level software that meets end-to-end testing requirements.
  • All types of test requirements can be met with a single-stop solution.
  • Service virtualization and tests with record/playback are supported.

Cons of Tricentis:

  • There is no support for automated unit tests. It is better suited for developing end-to-end integration tests or user journeys.

Pricing of Tricentis:

  • Demo available for most of their products
  • Available on Demand

#21 Smartbear

Features of Smartbear:

  • Provides an object recognition engine powered by AI for testing desktop, web, and mobile applications.
  • #22 More appropriate for e2e integration tests.
  • Multiple application types are supported, including.NET Java, React, and Javascript-based frameworks and functional UI tests for mobile web and apps.
  • Integration with tools such as Git, Jira, and Jenkins is supported.
  • It supports data-driven & keyword-driven testing also supports parallel testing.

Pros of Smartbear:

  • Increased delivery speed by delivering faster automation and more robust tests.
  • It is simple to learn.
  • Reuse existing test scripts and integrate with CI tools right away.
  • Data-driven and keyword-driven testing are supported.
  • Parallel testing is supported.

Cons of Smartbear:

  • Third-party web controls, such as Flash and Javascript, can be challenging to test.
  • Javascript and Python are the most commonly used scripting languages. Developers/testers with backgrounds in other languages, such as Java or Kotlin, may face difficulties.

Pricing of Smartbear:

  • TestComplete Base – $6,519
  • TestComplete Pro – $10,150
  • Free 30 day trial for Windows OS

#22 Leapwork

Features of Leapwork:

  • The enterprise-grade solution that is compatible with all technologies.
  • The market leader in codeless automation.
  • Robotic Process Automation (RPA) is supported.
  • Support for a wide range of application types, including Windows applications, Web applications, mobile apps, mainframes, Salesforce-based apps, SAP, and others.

Pros of Leapwork:

  • To create tests, use a visual, code-free approach.
  • It is simple to learn.
  • Support teams with specialised knowledge.
  • Support for a variety of application types.

Cons of Leapwork:

  • Support for platforms such as OSX and Linux is lacking. The tool is currently only supported for Microsoft Windows-based operating systems.

Pricing of Leapwork:

  • Available on demand
  • Free Trial available

#23 Katalon

Features of Katalon:

  • Web and mobile apps, as well as APIs, can be automated.
  • Image-based testing is supported.
  • It is simple to set up and operate.
  • Cross-browser testing is supported.
  • Most of the features are also supported in the accessible version of Katalon Studio.
  • The application is available for both Mac and Windows computers.

Pros of Katalon:

  • User-friendly interface – simple to learn.
  • Cross-browser testing is supported.
  • Most of the features are also supported in the free version of Katalon Studio.
  • The application is available for both Mac and Windows computers.

Cons of Katalon:

  • Only the enterprise licensed version has CI/CD integration, which requires an addon – enterprise runtime engine.
  • Parallel test execution and BDD scripts are not supported.

Pricing of Katalon:

  • License fee: $839/year

#24 Microfocus

Features of Microfocus:

  • It supports GUI, API, and web testing.
  • Intelligent test automation powered by AI.
  • Integration with CI/CD tools directly.
  • Support for over 200 application types, including web apps, SAP-based apps, mainframes, and more.
  • Parallel and cross-browser testing is supported.
  • Real devices and emulators are available for mobile testing.

Pros of Microfocus

  • Solid support teams.
  • Parallel and cross-browser testing is supported.
  • Real devices and emulators are available for mobile testing.

Cons of Microfocus:

  • The tool consumes a lot of memory/storage.
  • The scripting language is VB scripting, which limits the use of many other tools such as Javascript, Python, and so on.

Pricing of Microfocus:

  • Available on-demand
  • Free trial available

Conclusion:

The fundamental task in the software testing process is unit testing. Previously, it was a manual task conducted by developers or testers, but as the software development process has evolved, every task has become automated. As a result, unit testing has become an automated activity thanks to the usage of tools.

Unit Testing is divided into different components using tools, such as Java Unit Testing, PHP, Python, C/C++, etc. Still, the main objective is to make Unit Testing automated, speedy, and accurate.

For that, you can signup for the TestGrid premium tool without any credit cards and use it for free!

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