'If the course does NOT have a SKU, the user should be enrolled in the course (under the default mode) and
redirected to the user dashboard.'

def test_course_without_sku_default(self):

    for course_mode in CourseMode.objects.filter(course_id=self.course.id):
        course_mode.sku = None
        course_mode.save()
    self._test_course_without_sku()
