def test_grade_returns_the_students_in_that_grade_in_alphabetical_order(
self):
school = School()
school.add_student(name="Franklin", grade=5)
school.add_student(name="Bradley", grade=5)
school.add_student(name="Jeff", grade=1)
expected = ["Bradley", "Franklin"]
self.assertEqual(school.grade_(5), expected)
def test_grade_returns_an_empty_list_if_there_are_no_students_in_that_grade(
self):
school = School()
expected = []
self.assertEqual(school.grade_(1), expected)