Create and Run a Back-to-Back Test (Tech Preview)

R2026b
Since R2026b

Note

The redesigned Simulink® Test Manager is a tech preview in R2026b. The primary purpose of the tech preview is to provide early access to the most common testing workflows. For more information about supported workflows, see Overview of the Redesigned Simulink Test Manager (Tech Preview).

To enable the feature, click the New Test Manager button in the existing Test Manager or use the sltest.stmv2.open function at the command line.

This step how to run a back-to-back test by using the redesigned Test Manager. You create run settings files to specify simulation modes, then configure a runlist to compare the results of normal and software-in-the-loop (SIL) simulations of the assessment test case that you added to the fuelsys_stm test file in the previous step of the example.

Define Run Settings

Run settings files specify how the Test Manager runs tests. For example, you can use run settings to specify the simulation mode for the model and enable coverage.

To define the simulation mode for each side of the back-to-back comparison. Create one run settings file for normal mode and another for SIL mode:

  1. In the File section, click New > Run Settings. In the New Run Settings window, choose a location, enter the file name normalSim. Click Save.

    Run settings tab showing Platform Run Settings, Coverage, and Advanced Settings sections

  2. In the normalSim.sltestr tab, in the Platform Run Settings, set Simulation Mode to Normal. Click Save.

  3. Click New > Run Settings. In the New Run Settings window, choose a location, enter the file name SILSim. Click Save.

    Test Files pane with normalSim and SILSim listed under the Run Settings section

  4. In the SILSim.sltestr tab, in the Platform Run Settings section, set Simulation Mode to SIL. Click Save.

Configure a Runlist to Run a Back-to-Back Test

Runlists specify which test case and run setting combinations to run and define post-hoc tasks such as comparisons between simulation results.

Create a runlist to assign the normalSim and SILSim run settings files to the AssessmentTest test case and define a comparison between the simulation results:

  1. In the Test tab of the toolstrip, click New > Runlist. In the New Runlist window, choose a location, enter the file name fuelsys_runlist. Click Save.

  2. In the Run Setting section, select normalSim and SILSim.

  3. In the Test Cases section, select fuelsys_stm.

  4. In the Runlist tab toolstrip, in the Post-Hoc Tasks section, click Add Comparison.

    Runlist tab showing Run Setting, Test Cases, and Comparisons sections

  5. In the Comparison_1 section, set Run Setting 1 to normalSim. Set Run Setting 2 to SILSim.

  6. In the Tolerances section, set Relative to 0.1.

  7. In the top-right corner of the fuelsys_runlist tab, click the Preview button. The preview shows the test case and run settings combinations that execute when you run the runlist.

    Runlist preview table showing test case and run setting combinations

Review Back-to-Back Test Results

After you create the run settings files and the runlist, run the tests and view the results.

  1. To run the test cases, in the Runlist tab, click Run.

  2. After the tests execute, the Test Results pane in the results app shows the new test results. Expand the comparison results and select Comparison Run.

  3. In the Compare tab of the Data Inspector, expand the run and select fuelGain. The right pane displays the results plots.

See Also

Topics