Python逆引き大全｜初心者から実務まで使えるテスト自動化の実践テクニック テスト自動化編！

import unittest

# テスト対象の関数
def add(x, y):
    return x + y

# テストクラス
class TestMathOperations(unittest.TestCase):
    def test_add(self):
        self.assertEqual(add(2, 3), 5)
        self.assertEqual(add(-1, 1), 0)

if __name__ == '__main__':
    unittest.main()

python -m unittest test_file.py

from unittest.mock import MagicMock

# モックの設定
mock = MagicMock()
mock.return_value = "mocked result"

# 使用例
result = mock()
print(result)  # mocked result

pip install coverage
coverage run -m unittest test_file.py
coverage report

name: Python CI

on: [push]

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Set up Python
        uses: actions/setup-python@v2
        with:
          python-version: 3.9
      - name: Install dependencies
        run: pip install -r requirements.txt
      - name: Run tests
        run: python -m unittest discover

pip install pytest
pytest tests/

import timeit

code = '''
def add(x, y):
    return x + y

add(2, 3)
'''

print(timeit.timeit(code, number=100000))

pip install locust

from locust import HttpUser, task

class WebsiteUser(HttpUser):
    @task
    def load_page(self):
        self.client.get("/")

pip install faker

from faker import Faker

fake = Faker()
print(fake.name())  # ランダムな名前
print(fake.email())  # ランダムなメールアドレス

try:
    1 / 0
except ZeroDivisionError as e:
    with open("error.log", "a") as log_file:
        log_file.write(str(e))