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How can I combine multiple single run coverage results into a single, cumulative coverage result?

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I have run a series of tests on my model file while collecting individual coverage results for each test. I my coverage forlder for my model i now have a large number of .cvt coverage data files that I would like to combine into a single coverage report & data file. How can I combine these results into a single file with all of my coverage data?

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 29 Aug 2019
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:
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:
You can also indicate the need for cumulative coverage collection prior to simulation using the Configuration option under Coverage > Results > Advanced Parameters

More Answers (1)

Kurt Stewart
Kurt Stewart on 2 Jun 2021
Edited: Kurt Stewart on 2 Jun 2021
For running unit tests you can combine different test classes into one suite and run them together
suite = testsuite({'UnitTestClass1.m','UnitTestClass2.m'});
runner = TestRunner.withNoPlugins;
runner.addPlugin(CodeCoveragePlugin.forFolder(pwd, ...
'Producing',CoverageReport('TotalCoverage', ...
'MainFile','UnitTests.html')))
runner.run(suite)
pause(1)
web('TotalCoverage/UnitTests.html') %view the results

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