def test_statistics(self):
courses = Course.query.all()
comprehensive_gpa = Course.comprehensive_gpa(courses)
self.assertTrue(abs(comprehensive_gpa - 3.428) < 1e-2)
academic_gpa = Course.academic_gpa(courses)
self.assertTrue(abs(academic_gpa - 3.0) < 1e-2)
pg_rec_gpa = Course.postgraduate_recommandation_gpa(courses)
self.assertTrue(abs(pg_rec_gpa - 2.5) < 1e-2)
self.assertTrue(Course.total_credit(courses) == 7)
self.assertTrue(Course.general_course_credit(courses) == 3)
for i in range(0, 6):
courses.append(Course(credit=0, type_id=CourseType.READING))
self.assertTrue(Course.total_credit(courses) == 9)
self.assertTrue(Course.general_course_credit(courses) == 5)
