You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: test_multisub_withinsubanova.m
    path of file: ./repos/bspm/thirdparty/spm12/toolbox/SnPM13/test
    
    the code of the file until where you have to start completion: % Perform non-regression tests on within-subject ANOVA in SnPM. 
% Check that results obtained using the batch version are identical to the 
% results computed manually (using the interactive GUI).
%_______________________________________________________________________
% Copyright (C) 2013 The University of Warwick
% Id: test_multisub_withinsubanova.m  SnPM13 2013/10/12
% Camille
    
function set_stat(testCase)
            testCase.stattype = 'f';
        end
        
        function create_basis_matlabbatch(testCase)
            testCase.compaWithSpm = false;
            
            nSubjects = 5;
            nScansPerSub = 2;
            
            % Fill the design part in the batch
            for i = 1:nSubjects
                for j = 1:nScansPerSub
                    testCase.matlabbatch{1}.spm.tools.snpm.des.ANOVAwithinS.fsubject(i).scans{j} = ...
                     fullfile(testCase.testDataDir, ['test_data_', num2str((i-1)*nScansPerSub+j, '%02.0f'), '.nii,1']);
                end
            end
        end
    end
    
    methods (Test)
        % No covariate, no variance smoothing
        function test_multisub_withinsubanova_1(testCase)
            % Nominal test
            testCase.testName = 'multisub_withinsubanova_1';
        end

        % With variance smoothing
        function test_multisub_withinsubanova_var(testCase)
            testCase.testName = 'multisub_withinsubanova_var';
            
            testCase.matlabbatch{1}.spm.tools.snpm.des.ANOVAwithinS.vFWHM = [8 8 8];
        end

        % With approximate test
        function test_multisub_withinsubanova_approx(testCase)
            testCase.testName = 'multisub_withinsubanova_approx';
            
            rand('seed',200);            
            testCase.matlabbatch{1}.spm.tools.snpm.des.ANOVAwithinS.nPerm = 13;
        end
    end
    
    methods (TestMethodTeardown)
        function complete_batch(testCase)
            % Find the result directory for the batch execution and the
            % corresponding result directory computed manually using the
            % original spm2-like interface
            testCase.batchResDir = fullfile(testCase.parentDataDir, 'results', 'batch', testCase.testName);
            testCase.matlabbatch{1}.spm.tools.snpm.des.ANOVAwithinS.dir = {testCase.batchResDir};
        end