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Script-Based Unit Tests

Write and run test scripts

Write script-based tests to check that the outputs of MATLAB^® scripts, functions, or classes are as you expect. For example, you can use the assert function to test for actual output values that match expected values, or you can test that the output variables have the correct size and type. To run your test scripts use the runtests function.

To get started, see Write Script-Based Unit Tests.

For more advanced test authoring, including access to many different types of test qualifications, consider writing Function-Based Unit Tests or Class-Based Unit Tests.

Apps

Test Browser

Run MATLAB tests and view results (Since R2023a)

Functions

`assert`	Throw error if condition false
`runtests`	Run set of tests
`testsuite`	Create suite of tests

Classes

TestResult Result of running test suite

Topics

Write Test Using Live Script
This example shows how to write a live script that tests a function that you create.
Write Script-Based Unit Tests
Write a script to test a function that you create.
Write Script-Based Test Using Local Functions
This example shows how to write a script-based test that uses local functions as helper functions.
Run Tests Using Test Browser
Run your tests interactively by using the test browser. (Since R2023a)
Analyze Test Case Results
This example shows how to analyze the information returned by a test runner.
Analyze Failed Test Results
This example shows how to identify and handle failed tests.
Rerun Failed Tests
Rerun failed tests quickly and conveniently.
Extend Script-Based Tests
Access additional functionality using script-based tests, including test selection, programmatic access of test diagnostics, and test runner customization.
Ways to Write Unit Tests
Choose a test authoring scheme that best suits your requirements and your preferred workflow.