Python - Storing Collections of Data Using Lists - remove method, index method, insert method, extend method, reverse method, sort method

Practical Programming
楽天ブックス 紀伊国屋書店

開発環境

• macOS Catalina - Apple (OS)
• Emacs (Text Editor)
• Windows 10 Pro (OS)
• Visual Studio Code (Text Editor)
• Python 3.7 (プログラミング言語)

Practical Programming: An Introduction to Computer Science Using Python 3.6 (Paul Gries(著)、Jennifer Campbell(著)、Jason Montojo(著)、Pragmatic Bookshelf)のChapter 8(Storing Collections of Data Using Lists)、Exercise 4の解答を求めてみる。

コード

#!/usr/bin/env python3
from unittest import TestCase, main

ids = [4353, 2314, 2956, 3382, 9362, 3900]


class MyTestCase(TestCase):
    def test_a(self):
        ids.remove(3382)
        self.assertListEqual(ids, [4353, 2314, 2956, 9362, 3900])

    def test_b(self):
        index = ids.index(9362)
        self.assertEqual(index, 3)

    def test_c(self):
        ids.insert(ids.index(9362) + 1, 4499)
        self.assertListEqual(ids, [4353, 2314, 2956, 9362, 4499, 3900])

    def test_d(self):
        ids.extend([5566, 1830])
        self.assertListEqual(
            ids, [4353, 2314, 2956, 9362, 4499, 3900, 5566, 1830])

    def test_e(self):
        ids.reverse()
        self.assertEqual(ids, [1830, 5566, 3900, 4499, 9362, 2956, 2314, 4353])

    def test_f(self):
        ids.sort()
        self.assertEqual(ids, [1830, 2314, 2956, 3900, 4353, 4499, 5566, 9362])


if __name__ == '__main__':
    main()

入出力結果(Zsh、cmd.exe(コマンドプロンプト)、Terminal、Jupyter(IPython))

% ./sample4.py -v
test_a (__main__.MyTestCase) ... ok
test_b (__main__.MyTestCase) ... ok
test_c (__main__.MyTestCase) ... ok
test_d (__main__.MyTestCase) ... ok
test_e (__main__.MyTestCase) ... ok
test_f (__main__.MyTestCase) ... ok

----------------------------------------------------------------------
Ran 6 tests in 0.000s

OK
%