MATLAB: Matlab Unit test for structure input. How to use same test for n numbers.

Question

1. I have a matlab unit test class. Here i am using setup method to form structure i.e. 'testCase.out' this structure have n values here n=4.
2. Test method is used to verify equality of values.

classdef ClassTest < matlab.unittest.TestCase
    
    properties (Access = private)
        out
    end
    
    methods (TestClassSetup)
        function FirstSetup(testCase)
            n=4;
            for i=1:n
                testCase.out(i).name= ['Test_', num2str(i)];
                testCase.out(i).value = i;
            end
        end
    end
    
    
    methods (Test)
        function MyTest(testCase)
            for k=1:length(testCase.out)
                Test = testCase.out(k).name;
                testCase.verifyEqual(testCase.out(k).value,2);
            end
        end
    end
    
end

Now to run this test:

import matlab.unittest.TestSuite
suite = TestSuite.fromClass(?ClassTest);
result = run(suite);

The result is failed as k=1,3 and 4 is not equal values. Only k=2 value is equal.

Question:

How could we create a test such that for value 2 the test will pass and for other test will fail. So i want result table i.e. Test1 = fail, Test2=Pass, Test3=fail and Test4 = fail.

how could we use above same test and get result table for n numbers with pass fail status?

Answer 1

Hi Sudhakar,

As per my understanding, you can make use of the “TestParameter” property available in MATLAB in order to create the structure of values and use the structure in the verifyEqual, summary of the test is displayed in the table at the end of the test result.

Here is how you can do:

classdef ClassTest < matlab.unittest.TestCase
    
    properties (Access = private)
        out
    end
    properties (TestParameter)
        testValue={1,2,3,4}
    end
    
    methods (Test)
        function MyTest(testCase, testValue)
            testCase.verifyEqual(testValue,2);
        end
    end
    
end

Hope this Helps!