Mocking a Set Method doesn't work

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I want to Mock a set method while conducting unit tests. when I try to mock it, I get the error:
Unrecognized method, property, or field 'set' for class
Any help is appreciated.
The mock is defined as follows:
testCase.assignOutputsWhen(...
withAnyInputs(behaviorObj.set.blablabla),DoNothing);
The Set method is defined as follows:
function set.blablabla(obj)
arguments
end
%"stuf"
end

回答(1 个)

Samayochita
Samayochita 2025-6-23
Hi aoisdjas alsjdlsajd,
I understand that you are trying to mock a set method for a property in MATLAB. MATLAB does not support mocking property set methods directly using “matlab.mock.TestCase.assignOutputsWhen”. In MATLAB, property accessors like get and set are not methods in the same way regular class methods are. The error is expected because “set.blablabla” is not a callable method you can reference like “obj.someMethod”.
I would instead suggest you to wrap the setter logic in a regular method. Define a regular method like “setBlablabla()”:
methods
function setBlablabla(obj, value)
obj.blablabla = value; % raw property set
% Do more stuff here
end
end
Then you can mock that method easily as follows:
testCase.assignOutputsWhen(...
withAnyInputs(behaviorObj.setBlablabla), DoNothing);
Hope this is helpful!

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