def METHOD_NAME(self):
    """Test average rating for all of the courses taught by a specific instructor"""
    avg_recommendability = (self.review1.recommendability + self.review2.recommendability +
                            self.review3.recommendability + self.review4.recommendability +
                            self.review5.recommendability + self.review6.recommendability) / 6
    avg_instructor_rating = (self.review1.instructor_rating + self.review2.instructor_rating +
                             self.review3.instructor_rating + self.review4.instructor_rating +
                             self.review5.instructor_rating + self.review6.instructor_rating) \
        / 6
    avg_enjoyability = (self.review1.enjoyability + self.review2.enjoyability +
                        self.review3.enjoyability + self.review4.enjoyability +
                        self.review5.enjoyability + self.review6.enjoyability) / 6
    avg_rating = (avg_instructor_rating +
                  avg_recommendability + avg_enjoyability) / 3
    self.assertAlmostEqual(self.instructor.average_rating(), avg_rating, 4)