MATLAB: Programmatically Change sltest.testmanager.TestCase external file location

externalfilemanagersimulink testtest

How do I programmatically change the external file location for a sltest.testmanager.TestCase class?

Best Answer

To change the checkbox for "Create Test Case from External File", use the "setProperty" method with the argument "istestdatareferenced".

Additionally, you can change the file with the "TestDataPath" argument to change the external file location.

For example, given a test case "tc" in the workspace:

tc.setProperty('istestdatareferenced', true);
tc.setProperty('TestDataPath', 'some/path/to/file');

This syntax allows the programmatic use you desired. You will need to add a model the test case beforehand for this to apply.

Related Solutions

MATLAB: Simulink Test: update constant block in iteration

The idea is to make use of the "Parameter Overrides" section of the "Real time normal shift chain" in the Simulink Test Manager.

Please follow the steps below:

Select the test "Real time normal shift chain"
Open "Parameter Overrides" section
Click "Refresh" at the bottom of the table. This will actually build the real-time application and retrieve all the available parameters in the model
Note down the name of the parameter set / workspace variable that corresponds to the model element 'MainTestModel/SpeedBlock'. It is likely named 'Speed' based on what I see of your model.
Now you may override this value as follows:

>> setVariable(testItr, 'Name', 'Speed', 'Value', num2str(k));

in your test iterations.

Note that the "Source" argument is not needed here as the 'Speed' variable is already associated with the model element 'MainTestModel/SpeedBlock'.

MATLAB: Renaming files using MATLAB

From MATLAB, you can use the "movefile" function to rename files on your machine:

https://www.mathworks.com/help/releases/R2020a/matlab/ref/movefile.html

For more information on managing files and folders in MATLAB see this documentation:

https://www.mathworks.com/help/releases/R2020a/matlab/matlab_env/manage-files-and-folders.html

Alternatively, you can use the "system" command which executes on the local operating system.

On Windows using CMD, the "rename" command works like this:

C:> rename  file_path  new_name
C:> rename  C:\Temp\file1.txt file2.txt

So in MATLAB, from the directory with the file you could execute:

>> system("rename " + "old_name.txt" + " " + "new_name.txt")

If the file names contain spaces, this can confuse the operating system, so a more robust approach is to wrap each file name in double quotes like this:

>> system("rename " + '"' + "old name.txt" + '" "' + "new name.txt" + '"')

This produces a system command like this:

C:> rename "old name.txt" "new name.txt"

To use MATLAB variables for the old and new file names you can use these MATLAB commands:

>> old_path_to_file = "C:\Temp\test a.txt";

>> new_filename = "test b.txt";

>> cmd = "rename " + '"' + old_path_to_file + '" "' + new_filename + '"';

>> system(cmd);

On a Linux or macOS (Unix) system, this would be:

>> old_path_to_file = "/tmp/test a.txt";
>> new_filename = "test b.txt";
>> cmd = "mv " + '"' + old_path_to_file + '" "' + new_filename + '"';
>> system(cmd);

Best Answer

Related Solutions

MATLAB: Simulink Test: update constant block in iteration

MATLAB: Renaming files using MATLAB

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