How to collect cumulative coverage for model and it's subsystem?

I'm running separate test harnesses for model and it's subsystem. How can i combine coverage resuts?

P.S. I saw this page and it works only if hanesses made for the same model. In my case, there test harness fo model ans separate test harness for it's subsystem.

Answer 1

[Pat Canny]

We added a feature in R2019b to enable "aggregated" coverage for a model and its subsystems. Does this help? https://www.mathworks.com/help/releases/R2019b/slcoverage/ug/top-level-model-coverage-report.html#mw_16637a98-54d2-46e8-a156-a5d875cbb8b4

[Oleksandr Denysenko]

Hello

As i understood it helps to aggregate coverage from test harnesses for the same model, am i correct?

But i have one test harness for model and another one for subsystem in this model (link to subsystem in model). Is it possible to aggregate these cogerage?

[Pat Canny]

I should clarify that the feature we added in R2019b assumes the tests are organized using Simulink Test.

Coverage from test cases for a subsystem (which can be generated from a test harness) can be aggregated along with the coverage from the parent model (our documentation calls tests on the parent model "integration tests"). Here is a link to an example: https://www.mathworks.com/help/releases/R2019b/slcoverage/ug/trace-coverage-results-to-associated-test-cases.html

The goal with this feature is to enable users to see how much coverage they achieved at the unit (subsystem) and system level. Our customers use a variety of definitions for "unit", and we decided the best approach was to use a test case in Simulink Test as the mechanism to preserve hierarchy. You can create a test case from a test harness: https://www.mathworks.com/help/sltest/ug/generate-test-cases-from-model-components.html