Pass data directory input argument to a set of unit tests

Have created a class-based unit test and test runner function. Want to execute on several datasets with each dataset located in separate directories. Tried to pass an input argument but cannot figure out how to pass to RUN function and in the classdef function. Any suggestions? Below are my program.

function    results = testRunner( dataFoldername )
% Number of Arguments Checks
    % Input Arguments
    narginchk( 1, 1 ); 
    % Output Arguments
    nargoutchk( 1, 1 );
% Data Input Pathname
currentFolder = pwd;
dataPathname = sprintf( '%s%s%s', currentFolder, filesep, dataFoldername );
% Run Unit Tests
testCase = testGantryMotionRTS;
results = run( testCase );

classdef testGantryMotionRTS < matlab.unittest.TestCase
    % Test Method Block
    methods ( Test )
        % Test Function 1
        function testBalanceSensorResponseSolution1( testCase ) 
            % Expected Results
            expectedResults = waveformcsvread;
            % Actual Results
            actualResults = rtscsvread( 'balancesensorresponsetopic' );
            % Verify Using Test Qualification
            for i = 1:length( expectedResults )
                actualSolution   = actualResults.rotation_time;
                expectedSolution = expectedResults.rotation_time;
                testCase.verifyEqual( actualSolution, expectedSolution );
                actualSolution   = actualResults.sensor_data.x_data;
                expected
                actualSolution   = actualResults.sensor_data.z_data;
                expectedSolution = expectedResults.sensor_data.z_data;
                testCase
                actualSolution   = actualResults.sensor_data.gantry_position_in_degrees;
                expectedSolution = expectedResults.sensor_data.gantry_position_in_degrees;
                testCase.verifyEqual( actualSolution, expectedSolution );
            end
        end
    end
end

Thank you

Ariel Friedlander

[Jan]

Just a hint: fullfile is smarter than sprintf to join parts of a path.

Answer 1

[Steven Lord]

One way to do this would be with a parameterized test, either by having your test call a function that returns the parameter values (the list of data sets) or (if you're using release R2018b or later) using an external parameter that you inject when you execute the test. An example of the former:

classdef testExist < matlab.unittest.TestCase
    properties(TestParameter)
        listOfFilesInPWD = getAllFilesInPwd;
    end
    methods(Test)
        function existShouldFindFilesInCurrentDirectory(testcase, ...
                listOfFilesInPWD)
            testcase.verifyNotEqual(exist(listOfFilesInPWD), 0)
        end
    end
end

function y = getAllFilesInPwd
d = dir;
y = {d.name};
end

Answer 2

[Luna]

Hi Ariel,

You can't define a class and a function which is not a method of the class in the same .m file.

Please read below link to create a user based unit test classes and built-in packages:

Class Based Unit Tests

Author Class Based Unit Tests

Simple Example