Test Sequence

Create simulation testing scenarios, function calls, and assessments

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Libraries:
Simulink Test

Description

Define a test sequence using a tabular series of steps. Like the Test Assessment block, the Test Sequence block uses MATLAB^® as the action language. Double-click the Test Sequence block icon to open the Test Sequence editor.

Examples

Programmatically Create a Test Sequence

Create a test harness and test sequence using the programmatic interface. You create a test harness that contains a Test Sequence block. You use the block to author a series of test steps that verify two functional attributes of a cruise control system.

• Open Script

Limitations

• Step names must be less than 2048 characters. This limitation also applies to enumeration names for monitoring the active step.

• You cannot use the Simulink^® Finder to replace code in Test Sequence blocks. However, you can click Search or use Ctrl+F in the Test Sequence Editor to find and replace code.

Ports

Ports correspond to inputs and outputs defined in the Test Sequence Editor Symbols pane.

Parameters

For a description of block parameters, see Subsystem.

Tips

• You can choose to log only pass and fail results for the verify statements in a Test Sequence block and not display untested results. To log only pass and fail verify results, on the Tests or Harness tab, in the Test Cases section, click Suppress Untested Results. Alternatively, you can use set_param to set the logOnlyTestedVerifyResults parameter to 'on'. For example, to log only tested verify statement results for the model myModel:

  set_param(myModel,'logOnlyTestedVerifyResults','on')

  For more information see verify.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

PLC Code Generation

Generate Structured Text code using Simulink® PLC Coder™.

If you use Test Sequence Scenarios that contain verify statements, you cannot generate Structured Text code.

Version History

Introduced in R2015a

R2025a: View verify results from only active scenarios

The Test Manager does not display results for verify statements in inactive Test Sequence scenarios.