    def test_reset_student_attempts_missingmodule(self):
        """ Test reset for non-existant problem. """
        url = reverse('reset_student_attempts', kwargs={'course_id': self.course.id.to_deprecated_string()})
        response = self.client.get(url, {
            'problem_to_reset': 'robot-not-a-real-module',
            'unique_student_identifier': self.student.email,
        })
        self.assertEqual(response.status_code, 400)
The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.