def test_get_parameters_with_parser(self):
self.assertEqual(('.', r'.\destination_for_jpg', '.jpg'),
get_parameters_with_parser([]))
self.assertEqual((r'.\source_files', r'.\destination_for_jpg', '.jpg'),
get_parameters_with_parser([
'-s', r'.\source_files', '-d',
r'.\destination_for_jpg', '-x', '.jpg'
]))
self.assertEqual((r'.\source_files', r'.\destination_for_txt', '.txt'),
get_parameters_with_parser([
'-s', r'.\source_files', '-d',
r'.\destination_for_txt', '-x', '.txt'
]))
def test_selective_copy_jpg_files(self):
source_path = os.path.join(self.test_dir, 'source_files')
destination_path = os.path.join(self.test_dir, 'destination_for_jpg')
source, destination, extension = get_parameters_with_parser(
['-s', source_path, '-d', destination_path, '-x', '.jpg'])
copy_files_with_spec_extension(source, destination, extension)
self.assertEqual([], os.listdir(destination_path))