import unittest
from pydtm.utils import load_ISO3166_data, countryToISO3166_A3, ISO3166_A3ToCountry


class TestAPIFunctions(unittest.TestCase):
    
    def load_ISO3166_data(self):
        # Test case 1: Check that loading data doesn't raise an exception
        pass
        
    
    def countryToISO3166_A3(self):
        # Test case 1: Valid parameters
        pass
        
    
    def  ISO3166_A3ToCountry(self):
        # Test case 1: Valid parameters
        pass  
if __name__ == '__main__':
    unittest.main()