MATLAB: How to calculate Simulink Test coverage percentage from the command line

simulink test

I am using command line methods for Simulink Test rather than using the test manager (sltestmgr). In the test manager, it is easy to view the coverage results percentage. How can I view the percentage from the command line? If I have a results object, ro [results=run(testManagerFile)], then I can access the coverage results in the following way:

>>ro.CoverageResults

But there doesn't seem to be a property for the coverage percentage

Best Answer

ro.CoverageResults returns a cvdata object. There are methods that you can use with a cvdata object for purposes such as this:

https://www.mathworks.com/help/slcoverage/automate-coverage-workflows-1.html

For instance, if you would like to calculate the MCDC coverage, then you can use the 'mdcinfo' method in the following way:

cov = mcdcinfo(ro.CoverageResults, 'model_name')
%Percentage of MCDC outcomes covered
percent_cov = 100 * cov(1) / cov(2)

The 'mcdcinfo' documentation:

https://www.mathworks.com/help/slcoverage/ref/mcdcinfo.html

Related Solutions

MATLAB: How to combine multiple single run coverage results into a single, cumulative coverage result

There are two methods that you can use to combine coverage data: the first being done at the command line and the seconds through the coverage Results Explorer UI

To combine coverate data at the command line, you can use the '+' operator to get the union of the cvdata objects:

https://www.mathworks.com/help/releases/R2019a/slcoverage/examples/operations-on-coverage-data.html

Alternatively, you can use the coverage Results Explorer to load all of your coverage results for the model from the folder in your screenshot, and combine all of the results into a single cumulative coverage that can be saved:

https://www.mathworks.com/help/releases/R2019a/slcoverage/ug/access-manage-and-accumulate-model-coverage-results.html#bvf4tly-7

You can also indicate the need for cumulative coverage collection prior to simulation using the Configuration option under Coverage > Results > Advanced Parameters

https://www.mathworks.com/help/releases/R2019a/slcoverage/ug/cumulative-coverage-data.html

MATLAB: How to extract code coverage metrics from a code coverage report

In order to achieve that you need to first create a test object.

>> testObj = cvtest(model);

Then you have to run code coverage on the model.

>> [cvdo,simOut] = cvsim(testObj);

Then you can get the coverage results by using the following functions:

>> blk_handle = get_param([model], 'Handle'); 
>> executionCoverage = executioninfo(cvdo, blk_handle);
>> conditionCoverage = conditioninfo(cvdo, blk_handle);
>> decisionCoverage  = decisioninfo(cvdo, blk_handle);
>> mcdcCoverage      = mcdcinfo(cvdo, blk_handle);

You can refer to the attached script which accomplishes the above workflow.

Please follow the documentation link below to automate additional coverage workflows:

https://www.mathworks.com/help/slcoverage/automate-coverage-workflows.html

Best Answer

Related Solutions

MATLAB: How to combine multiple single run coverage results into a single, cumulative coverage result

MATLAB: How to extract code coverage metrics from a code coverage report

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