Qualification for checking objects with respect to an interface

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I want to write some tests to check if my objects have implemented an interface correctly. The outline of my test is as follows:
classdef ClassATest < matlab.unittest.TestCase
methods (Test)
function testAddOne(testCase)
% Example test function that uses the verifyEqual qualification.
testObj = ClassA();
testObj.Value = 1;
testCase.verifyEqual(testObj.Value, 2);
function testImplementsInterfaceB(testCase)
% Checks that ClassA objects implement the InterfaceB interface.
% InterfaceB consists of an "addTwo" method.
% What qualification do I use here?
I've looked at the list of qualifications in Types of Qualifications, but am not able to find an appropriate method. It would be ideal if there is a method similar to Ruby's "assert_respond_to" method from the Minitest framework, as it makes the intent of the test clear and can itself serve as a form of "executable documentation".

Answers (1)

Rajani Mishra
Rajani Mishra on 13 Mar 2020
You can use function “ismethod” to check whether provided function is a method of object provided as an input argument and then use verifyTrue() on the output of this function.
To know more about “ismethod” function refer to this link : https://www.mathworks.com/help/matlab/ref/ismethod.html




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