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LUnit by Astemes - Toolkit for LabVIEW Download

Unit testing framework for LabVIEW

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ReleasedJun 20, 2023
Publisher Astemes
License MIT
LabVIEW VersionLabVIEW>=20.0
Operating System Windows, Mac, and Linux
Project links Homepage   Documentation   Repository  


LUnit is a LabVIEW Unit Testing Framework built on the xUnit unit testing model and inspired by JKI VI Tester. LUnit helps you test driving your LabVIEW development and provides the following key features.

- Fast test execution
- Clear and informative results view
- Run specific tests quickly from right-click menu
- Test results visible directly in LabVIEW project explorer
- Instant loading of UI
- Parallel test execution managed by framework
- Dynamic test methods for testing of class hierarchies
- Native CLI and support for CI

LUnit is integrated into the LabVIEW development environment and the functionality is accessed through the Tools->LUnit menu. From the menu, you may create a new tests or open the LUnit UI to run tests. Tests may also be executed directly from the project explorer by right-clicking on a Test Case and selecting Run Test Case... from the menu.

There are a few examples installed with LUnit and these may be found through the NI Example Finder using the keyword LUnit. The examples are installed at C:\Program Files (x86)\National Instruments\LabVIEW 20XX\examples\Astemes\LUnit by default.

Documentation is available on

Release Notes (Jun 20, 2023)

This release contains the following improvements:
- New feature: Ignore tests by adding an underscore "_" as the first character in the test name. These test may be toggled on and off using the File menu option. For further details, see [the documentation](
- Performance: Improves the performance of test discovery when running tests using the API. Thanks to Sam Taggart for contributions to this improvement.
- Bugfix: Errors during test execution now appears in test description

sas_workshops and antsundq were contributors to this release

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