def test_index_of_student_student_present(self):
test_class = ClassList(3)
test_class.add_student('Harry')
test_class.add_student('Hermione')
test_class.add_student('Ron')
self.assertEqual(1, test_class.index_of_student('Harry'))
self.assertEqual(2, test_class.index_of_student('Hermione'))
self.assertEqual(3, test_class.index_of_student('Ron'))
# This assert passes, but it's redundant - the first assert statement will fail if
# the method call returns None
self.assertIsNotNone(test_class.index_of_student('Harry'))
def test_search_results_in_none_for_student_not_in_class(self):
test_class = ClassList(2)
test_class.add_student('Kirk Cousins')
test_class.add_student('Deshaun Watson')
index = test_class.index_of_student('Tom Brady')
self.assertIsNone(index)
def test_index_of_students_is_none_if_classlist_is_empty(self):
test_class = ClassList(2)
index = test_class.index_of_student('Test Student')
self.assertIsNone(index)