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: CBIG_hMRF_unit_test.m
    path of file: ./repos/CBIG/stable_projects/brain_parcellation/Yan2023_homotopic/unit_tests
    
    the code of the file until where you have to start completion: classdef CBIG_hMRF_unit_test < matlab.unittest.TestCase
% Written by Xiaoxuan Yan and CBIG under MIT license: https://github.com/ThomasYeoLab/CBIG/blob/master/LICENSE.md
methods (Test)
    function test_example(testCase)
        % create output folder
        CBIG_CODE_DIR = getenv('CBIG_CODE_DIR');
        load(fullfile(CBIG_CODE_DIR, 'unit_tests', 'replace_unittest_flag'));
        cur_
    
function test_example(testCase)
        % create output folder
        CBIG_CODE_DIR = getenv('CBIG_CODE_DIR');
        load(fullfile(CBIG_CODE_DIR, 'unit_tests', 'replace_unittest_flag'));
        cur_dir = fullfile(CBIG_CODE_DIR, 'stable_projects', 'brain_parcellation', 'Yan2023_homotopic', 'unit_tests');
        out_dir = fullfile(cur_dir, 'output');
        
        % run the example
        addpath(fullfile(CBIG_CODE_DIR, 'stable_projects', ...
            'brain_parcellation', 'Yan2023_homotopic', 'examples'));
        CBIG_hMRF_example_wrapper(out_dir);
        
        % check example results
        CBIG_hMRF_check_example_results(out_dir);
        
        % replace reference outputs if flag is 1
        ref_dir = fullfile(getenv('CBIG_CODE_DIR'), 'stable_projects', 'brain_parcellation',...
            'Yan2023_homotopic', 'examples', 'ref_results');
        
        % left hemi time matrix
        lh_time_mat = fullfile(out_dir, 'time_data', 'lh_time_matrix.mat');
        lh_time_mat_ref = fullfile(ref_dir, 'time_data', 'lh_time_matrix.mat');
        if(replace_unittest_flag)
            disp('Replacing unit test reference results for CBIG_hMRF_unit_test...');
            copyfile(lh_time_mat, lh_time_mat_ref);
        end