MATLAB: How to obtain code coverage

code coverage

Hi i'm working with a MATLAB code which has 1 main and 7 functions, i need to check the code coveage of entire code with 5 test cases, where i need to verify how much code has been covered by applying all 5 cases as a whole. Please share your idea… Thanks in advance….

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Hi!

Do you know the profiler? This is what you need. Look in the documentation on how to profile a script/function. This gives you many information about the execution. For your question: look at the resulting "ExecutedLines" array.

You can profile the function for each test case and get the aggregated "ExecutedLines" for all test cases. Compare that to the real code lines (non-blank and non-comment lines).

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MATLAB: Cumulative coverage for different test cases

(To officially answer this)

For cumulative coverage workflows, you can create a test harness for the system under test using slvnvmakeharness, which would allow you to change the test source while preserving the coverage collected on the system under test for cumulative coverage. Simulink Coverage will instrument and measure coverage on the system under test, which is effectively a model reference within the test harness.

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

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

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