Main Content class


Work with external results sources

Since R2020a


Instances of the provides utilities for interpreting JUnit result files for verification.


JUnitService = directs the result fetching logic to the XML file.

Output Arguments

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Services used in GetResultFcn to script up result fetching logic


The methods can be run on an instance of the JUnit class such as JUnitService illustrated above.

For the resultFile that contains result for a test with ID in testID, the getResult function returns the result for that testID. The output result is a struct with fields status and timestamp for that testID:

result = JUnitService.getResult(testID, resultFile);

The getAllResults similarly fetches the result for all tests in the resultFile using:

allResults = JUnitService.getAllResults(resultFile);

where allResults is an array of structs with fields testid, status, and timestamp for all the tests in the resultFile. If there are any errors or diagnostic output available in the JUnit output for that test, the error or info fields contain that text string.


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In this example, you integrate the results from a MATLAB® xml Unit test by linking to a test script. The verification status in the Requirements Editor reflects the test results. To run this example, click Open Example and run it. This example uses:

  • A requirements set file named counter_req.slreqx.

  • A xml Unit test file named myMUnitResults.xml. This file contains a test case named testCounterStartsAtZero.

Step 1: Register the Link Type

Before creating the links, you need to register the link type from the requirements set file. Open the requirements file counter_req.slreqx in the Requirements Editor.

reqSet ='counter_req.slreqx');


Register the link type that is specific to the MUnit test file. The domain registration needed for this example is linktype_mymljunitresults.m. To register the custom linktype linktype_mymljunitresults.m, type:

rmi register linktype_mymljunitresults;

The custom logic in the GetResultFcn function locates the result file that corresponds to the test case and fetches the results from that .xml file. For more information about GetResultFcn, see Links and Link Types. The test is run with a customized test runner using XML Plugin producing a JUnit output. The XML Plugin class creates a plugin that writes test results to a file called myMUnitResults.xml.

Note: If the register command returns any warning, then you must unregister the file and run the command again. To unregister the file, enter rmi unregister myMUnitResults.xml

Section 2: Create the Link

Make the struct containing properties of the external test. To create the link, at the command prompt, enter: = 'testCounterStartsAtZero';
externalSource.artifact = 'counterTests.m';
externalSource.domain = 'linktype_mymljunitresults';

The requirement related to the link has its SID set to 2. To find the requirement related to the link, enter:

requirement = reqSet.find('Type', 'Requirement', 'SID', 2);

To create the link, enter:

link = slreq.createLink(requirement, externalSource);

This command creates the link between the test case testCounterStartsAtZero and the requirement with the SID of 2.

Note: In order to avoid stale results, make sure that the timestamp of result file is latest than the timestamp of link creation. Open myMUnitResults.xml, make a dummy change in the file and save it again to get the latest timestamp.

In Requirements Editor, the link appears in the right pane, under Links.

Section 3: View the Verification Status

To view the verification status, you need to first update the verification status for the requirement set. At the MATLAB command prompt, type:


To see the verification status column in the Requirements Editor, ensure that showColumns_16.png Columns > Verification Status is selected. After the update, fetch the verification status for the requirement:

status = reqSet.getVerificationStatus
status = struct with fields:
         total: 3
        passed: 0
        failed: 0
    unexecuted: 1
     justified: 0
          none: 2

The Requirements Editor shows the verification status for entire requirements set that are passed or failed.


The verification status for the requirements for the testCounterStartsAtZero is fully verified. Open the Requirements Editor to see the verification status:

reqSet ='counter_req.slreqx');

The Requirements Editor shows the verification status for each requirement in the requirement set. The verification status for requirements for the counterSetsValue is fully verified.


The verification status shows that out of three tests, one test passed. Click Refresh to see the verification status for the requirements in the Requirements Editor.

Unregister the link type.

rmi unregister linktype_mymljunitresults;

Version History

Introduced in R2020a