Assess a Model by Using When Decomposition
This example shows how to use When decomposition in a Test Sequence block to author assessments in a test harness.
This model implements a simple signal tracker that operates in three modes: 0 (Off), 1 (Slow), and 2 (Quick).
To observe the output and error of the signal tracker, simulate the model.
Open the Test Harness
The SimpleTracker subsystem has a test harness that contains a Test Assessment block.
The Test Assessment block assesses the behavior of the SimpleTracker subsystem by using a When decomposition test sequence.
The test sequence determines the appropriate verify() statements to run based on the value of mode. The CheckError step has a When decomposition with three substeps:
OffModeis active when the value ofmodeis0(Off).SlowModeis active when the value ofmodeis1(Slow).QuickModeis active for all other values ofmode.
Run the Model Assessments
To run the assessments, simulate the test harness. Open the Simulation Data Inspector to inspect the result of the assessments.
Close the test harness and main model.
See Also
Test Assessment | Test Sequence