Adding a Unit Test

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1

Hi,

I am looking for a way to add unit tests to test some PLC code. How do I add a unit test library or solution? I tried to search for it in the Object Catalog, but could not find it. I am using AS 4.7.

Thanks and Regards,
Kenneth

2

You need to install the UnitTest Technology Solution, this can be done with the Upgrades dialog.

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After installation this can be added from the toolbox, remember to select the version according to the GCC version you are using in the project.

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After adding the solution to the project it also adds examples how to use it, and the documentation can be found from Automation Help.
Automation Help: Unit testing technology solution

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3

Thanks, I will try it out.

4

I managed to add the technology solution for unit tests.
I was wondering where would the unit tests be run? Is it on the PLC or do we need to start ARSim?

5

They can be run on a real PLC or ARSim. The UnitTest technology solution adds an ARSim configuration to the project.

In a real world scenario these would most likely be run on ARSim or some test PLC. I would not include UnitTest code on a real production configuration.

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6

I have added in the unit test solution, however, when I compile my project, I get the error “file not recognized: File format not recognized” . Does anyone know what could be the issue?

Update: I think the issue could be because I merged the unit test solution to an existing project. For a new project, I am able to build the unit test solution.