Building robust code requires different types of software tests. Begin with unit testing, which verifies individual components of code in isolation. Combine units with integration testing to ensure that various units interact correctly and understand how system testing validates the entire integrated system against specified requirements. Learn about the software testing pyramid, which emphasizes a balanced approach with a majority of unit tests, followed by integration and system tests. Ensure correct software behavior with functional tests like smoke and regression testing, which verify basic functionality and check for unintended changes in behavior. Understand the importance of nonfunctional testing, focusing on performance testing to evaluate execution speed and identify bottlenecks. Finally, utilize the concept of mocking, a technique to simulate dependencies and test components in isolation. Every engineer needs to know these seven essential types of software tests and how they can be combined to create a robust suite of tests. Check out our software testing playlist to learn more: Related resources: - Getting Started with the MATLAB Unit Test Framework: - Testing Frameworks: - What is the Test Browser in MATLAB?: -------------------------------------------------------------------------------------------------------- Get a free product trial: Learn more about MATLAB: Learn more about Simulink: See what's new in MATLAB and Simulink: © 2025 The MathWorks, Inc. MATLAB and Simulink are registered trademarks of The MathWorks, Inc. See for a list of additional trademarks. Other product or brand names may be trademarks or registered trademarks of their respective holders.