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Introducing MATLAB Check! » Developer Zone

MATLAB R2023a was launched again in March, and with it was a brand new product MATLAB Check. In a sequence of weblog posts beginning as we speak, I’m going to point out you the way MATLAB Check might help you enhance the standard of your code whether or not you’re creating a MATLAB Toolbox to share together with your colleagues or writing code that can be deployed into a security essential atmosphere similar to for medical units.


There are 5 key options within the first launch of MATAB Check which I’m going to cowl. They are going to be prolonged and added to over the approaching releases:

  1. Check Supervisor – handle your checks and outcomes (as we speak’s subject).
  2. Prolonged protection – measure situation, choice, and modified situation and choice protection (MCDC) to assist guarantee your code is absolutely examined and meets regulatory necessities.
  3. Code high quality dashboard – see an outline of your venture’s high quality standing similar to protection, Code Analyzer warnings, and necessities hyperlinks.
  4. Equivalence testing with MATLAB Coder and MATLAB Compiler SDK – simply evaluate the behaviour of generated C or C++ code, Java or Python packages, or .NET assemblies to that of desktop MATLAB.
  5. Dependency primarily based take a look at choice – execute solely the checks in your suite which might be impacting by adjustments in your code base.
As well as, software qualification artifacts can be found for MATLAB Check in our IEC Certification Equipment making MATLAB Check appropriate to be used within the growth of excessive integrity software program.

What’s not altering?

As well as, R2023a sees the introduction to base MATLAB of the Check Browser, a easy interface to run checks and browse outcomes.

Check Browser

The Check Browser will launch mechanically everytime you run checks from a take a look at file utilizing the “Run Exams” (F5) or “Run Present Check” (Ctrl + Enter) buttons. If you happen to run your checks from the command line (runtests(“tDemoSmokeTest”)), the Check Browser is not going to launch and you’ll as an alternative see the basic Command Window output.

Check Supervisor

The Check Supervisor means that you can create and handle take a look at suites, view and search outcomes, view necessities hyperlinks, handle protection settings, and persist outcomes between MATLAB classes.

So what’s the distinction between the Check Browser and the Check Supervisor? The Check Browser is an easy viewer for iteratively creating code and checks inside a MATLAB session. The Check Supervisor means that you can handle checks at scale, hyperlink to necessities, and persist outcomes between classes.
To make use of Check Supervisor, you’ll need to be utilizing a Mission. (For this weblog put up, I’m utilizing the delivery shortest path instance.) The Check Supervisor wants Initiatives for dependency info and for persisting take a look at outcomes. You’ll be able to launch the Check Supervisor from the Mission Toolstrip below the Apps part:

Launch the Check Supervisor from the Mission toolstrip.

Once you first launch the Check Supervisor, it’ll mechanically discover all checks in your venture. You’ll be able to add extra columns to the desk view (click on the inexperienced plus icon to the highest proper of the desk) to view take a look at tags and linked necessities (requires the Necessities Toolbox).

Check Supervisor with “Tags” and “Necessities” columns added.

After getting run the checks (hit the inexperienced play button!), you’ll be able to view your checks. You’ll be able to filter the outcomes by their move/fail/incomplete/not run standing, or search primarily based on some textual content. Right here I’ve looked for “enter” which finds all of the checks which have the tag “InputTests”.


Check outcomes filtered to point out those who embody “enter” of their metadata.

Accumulating protection info

Protection will be configured utilizing the choice within the menu bar:


Protection settings.

While the definition of assertion protection is pretty apparent, the variations between the others will be refined. We’ve added a web page within the documentation to elucidate the which means of every sort of protection as they apply to MATLAB supply code. I can even discover it extra in a future weblog put up.

The protection recording stage in MATLAB Check is cumulative, i.e. MC/DC additionally consists of Assertion, Determination, and Situation.

Protection outcomes will be considered by clicking the adjoining menu merchandise in any case checks have been run:


Entry the protection report.

(As of R2023a, protection info is barely out there when all checks within the present venture are run; protection isn’t recorded when operating a customized take a look at suite. This restriction can be eliminated in a future launch.)

Protection is recorded for all information in your venture which have the classification of “Design”. By default, all information in a venture can be labeled as “Design” besides those who use the unit testing framework that are labeled as “Check”. If you wish to take away a file from the protection report, change the classification to one thing else.


Change a file’s classification to one thing aside from “Design” to exclude it from protection recording.

Creating customized take a look at suites

The Check Supervisor offers a graphical interface for creating customized take a look at suites by utilizing this menu possibility:


Create a customized take a look at suite.

Right here, I’ve created a brand new take a look at suite to pick out all checks which have the tag “InputTests”:


Creating a brand new take a look at suite for all checks within the venture with the tag “InputTests”.

I can then choose my suite from the dropdown menu and simply run that subset:


Viewing checks which might be a part of the customized suite.

Session persistence

Lastly, for the reason that Check Supervisor persists the outcomes of checks from session to session, I can shut MATLAB, open it up once more later, reopen the Check Supervisor, and the outcomes of my final take a look at run will nonetheless be there.


MATLAB Check’s Check Supervisor lets you handle your take a look at suite, protection, and necessities as you scale up your testing actions.

Within the subsequent put up, I’ll check out the brand new protection choices in MATLAB Check.



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