def METHOD_NAME(self):
    user = fake_user()
    cmf = fake_data_file()
    response = self.app.delete(
        cmf.get_absolute_data_file_url(),
        headers={
            'Authorization': 'Bearer {}'.format(AccessToken.for_user(user))
        },
        expect_errors=True,
    )
    self.assertEqual(404, response.status_code)