Model Coverage With sltest.TestCase

I'm having problems collecting model coverage with script based tests in sltest.testCase.

The test case isn't super important. Basically I'm playing data back through a model reference.

A test case as simple as this demonstrates the issue:

classdef TestHarnessWithModelCoverage_1 < sltest.TestCase
   methods (Test)
      function testOne(testCase)
          in = testCase.createSimulationInput('MODEL_XXXX',...
                                              'WithHarness','MODEL_XXXX_HARNESS');
          simOut = testCase.simulate(in);
          testCase.verifyTrue(true);
      end
   end
end

The test case fails on line 384 of ModelCoveragePlugin:

 out.addResultsField('CoverageResults',plugin.CoverageSettings.save([]))

With the error:

Error using assert

Assertion failed.

Error in codeinstrum.internal.codecov.CodeCovData/setAggregatedTestInfo

Error in codeinstrum.internal.codecov.CodeCovData/setTestRunInfo

Error in codeinstrum.internal.codecov.CodeCovDataGroup/setTestRunInfo

Error in cvdata/set.testRunInfo

Error in stm.internal.Coverage.saveHelper

Error in stm.internal.Coverage/save

I'm using Matlab 2022b. Has anybody else run into this issue? I can collect coverage on the model when running the test case, but not through the sltest framework.

Answer 1

[Taylor]

There appears to be a bug in simulink 2022's model coverage plugin. The addResults field needs to be updated as follows.

out.addResultsField('CoverageResults',plugin.CoverageSettings.save(struct.empty))