MATLAB: What are the methods for synchronization/merging of Test harness’s to new main model

simulinksimulink testtest harness

What are the methods to merge Test Harness with the newer version of the model when multiple developers are working on the development of the model and development of test harness?

In most of the development environments, one tester will be creating test harness for one function in the model and the other tester will be developing harness for other function. At the same time, the developer will be updating the model.

How can merge these different test harness created for the updated version of the model?

Best Answer

Hi Varunjith Vijayan,

Based on my understanding, you may use one of the following workflows:

The design model is checkout in Git by developers. More than 1 persons are using the design model to generate or modify test harnesses.

1) People create test harnesses which are saved with different names.

For this workflow, when the test harnesses and harnessInfo.xml are checked in, people need update the harnessInfo.xml with the latest changes and add the newly created harness information into harnessInfo.xml.

2) People create test harnesses which are saved with SAME names.

The second harness needs to be saved with a different name and the newly created harness information can be added into harnessInfo.xml.

3) More than two persons are modifying the same test harness.

The difference between two test harnesses can be obtained using Simulink Project. The difference between two harnessInfo.xml files can be obtained using MATLAB "Compare" function, which can be found at the following position: Launch MATLAB -> HOME(The 1st toolstrip) -> Compare.

If the information in harnessInfo.xml is correct, the harness can be found correctly.

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MATLAB: Test harness location/ working of harnessinfo xml file

The main model uses Universally Unique ID (UUID) to connect with the harnesses. The UUID information can be found in harnessinfo.xml file. So the directory information is not included in the harnessinfo.xml file.

If the harness is saved outside the default working directory, you can use the function to include the harness directory to MATLAB path:

addpath('the directory of the harnesses')

Then when the main model is opened, the harness can be recognized automatically.

If the harness is from a different model, the harness has to be imported to the main model to be recognized as its harness by the main model. Here is the link for harness import operation: https://www.mathworks.com/help/sltest/ref/sltest.harness.import.html

MATLAB: Comparing output of different simulink model versions – Simulink Test

Hi,

If you want to compare the results from two test cases, you can use equivalence test case in Test Manager. Please see the following link as a reference. https://www.mathworks.com/help/sltest/examples/test-two-simulations-for-equivalence.html

If you want to use one test result as a baseline and compare several test cases' results to this baseline result, you can use baseline test case in Test Manager. Please see the following link as a reference. https://www.mathworks.com/help/sltest/ug/set-up-a-baseline-test-case.html

Best Answer

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