def METHOD_NAME(self):
    """
    Happy path test that attempts to remove a certificate available date from a course that shouldn't have one.
    """
    call_command(
        "clean_stale_certificate_available_dates",
        "--course-runs",
        self.self_paced_course1.id,
        self.self_paced_course2.id,
        "--delete"
    )
    course = get_course_by_id(self.self_paced_course1.id)
    assert course.certificate_available_date is None
    assert course.certificates_display_behavior == CertificatesDisplayBehaviors.EARLY_NO_INFO
    course = get_course_by_id(self.self_paced_course2.id)
    assert course.certificate_available_date is None
    assert course.certificates_display_behavior == CertificatesDisplayBehaviors.EARLY_NO_INFO