How to use the cookiecutter.utils function in cookiecutter

def test_make_sure_path_exists():
    if sys.platform.startswith('win'):
        existing_directory = os.path.abspath(os.curdir)
        uncreatable_directory = 'a*b'
    else:
        existing_directory = '/usr/'
        uncreatable_directory = '/this-doesnt-exist-and-cant-be-created/'

    assert utils.make_sure_path_exists(existing_directory)
    assert utils.make_sure_path_exists('tests/blah')
    assert utils.make_sure_path_exists('tests/trailingslash/')
    assert not utils.make_sure_path_exists(uncreatable_directory)
    utils.rmtree('tests/blah/')
    utils.rmtree('tests/trailingslash/')

def fin_remove_additional_folders():
        if os.path.exists('inputpizzä'):
            utils.rmtree('inputpizzä')
        if os.path.exists('inputgreen'):
            utils.rmtree('inputgreen')
        if os.path.exists('inputbinary_files'):
            utils.rmtree('inputbinary_files')
        if os.path.exists('tests/custom_output_dir'):
            utils.rmtree('tests/custom_output_dir')
        if os.path.exists('inputpermissions'):
            utils.rmtree('inputpermissions')
    request.addfinalizer(fin_remove_additional_folders)

def tearDown(self):
        with utils.work_in(config.DEFAULT_CONFIG['cookiecutters_dir']):
            if os.path.isdir('cookiecutter-pypackage'):
                utils.rmtree('cookiecutter-pypackage')
        if os.path.isdir('boilerplate'):
            utils.rmtree('boilerplate')
        super(TestGitBranch, self).tearDown()

def fin_remove_additional_folders():
        if os.path.exists('tests/test-pyhooks/inputpyhooks'):
            utils.rmtree('tests/test-pyhooks/inputpyhooks')
        if os.path.exists('inputpyhooks'):
            utils.rmtree('inputpyhooks')
        if os.path.exists('tests/test-shellhooks'):
            utils.rmtree('tests/test-shellhooks')
    request.addfinalizer(fin_remove_additional_folders)

def fin_remove_additional_folders():
        if os.path.exists('tests/test-pyhooks/inputpyhooks'):
            utils.rmtree('tests/test-pyhooks/inputpyhooks')
        if os.path.exists('inputpyhooks'):
            utils.rmtree('inputpyhooks')
        if os.path.exists('tests/test-shellhooks'):
            utils.rmtree('tests/test-shellhooks')
    request.addfinalizer(fin_remove_additional_folders)

def fin_remove_additional_folders():
        if os.path.isdir('cookiecutter-pypackage'):
            utils.rmtree('cookiecutter-pypackage')
        if os.path.isdir('boilerplate'):
            utils.rmtree('boilerplate')
        if os.path.isdir('cookiecutter-trytonmodule'):
            utils.rmtree('cookiecutter-trytonmodule')
        if os.path.isdir('module_name'):
            utils.rmtree('module_name')
    request.addfinalizer(fin_remove_additional_folders)

def fin_remove_additional_dirs():
        with utils.work_in(config.DEFAULT_CONFIG['cookiecutters_dir']):
            if os.path.isdir('cookiecutter-pypackage'):
                utils.rmtree('cookiecutter-pypackage')
        if os.path.isdir('boilerplate'):
            utils.rmtree('boilerplate')
    request.addfinalizer(fin_remove_additional_dirs)

def fin_remove_additional_dirs():
        if os.path.isdir('cookiecutter-pypackage'):
            utils.rmtree('cookiecutter-pypackage')
        if os.path.isdir('boilerplate'):
            utils.rmtree('boilerplate')
    request.addfinalizer(fin_remove_additional_dirs)

# conditions.
        if self.cookiecutters_dir_found:
            # Delete the created ~/.cookiecutters dir as long as a backup exists
            if os.path.isdir(self.cookiecutters_dir) and os.path.isdir(self.cookiecutters_dir_backup):
                utils.rmtree(self.cookiecutters_dir)
        else:
            # Delete the created ~/.cookiecutters dir.
            # There's no backup because it never existed
            if os.path.isdir(self.cookiecutters_dir):
                utils.rmtree(self.cookiecutters_dir)

        # Restore the user's default cookiecutters_dir contents
        if os.path.isdir(self.cookiecutters_dir_backup):
            shutil.copytree(self.cookiecutters_dir_backup, self.cookiecutters_dir)
        if os.path.isdir(self.cookiecutters_dir):
            utils.rmtree(self.cookiecutters_dir_backup)

def fin_remove_additional_dirs():
        if os.path.isdir('cookiecutter-pypackage'):
            utils.rmtree('cookiecutter-pypackage')
        if os.path.isdir('boilerplate'):
            utils.rmtree('boilerplate')
    request.addfinalizer(fin_remove_additional_dirs)