Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Testes pythonicos com Py.test
Search
Renato dos Santos Oliveira
November 11, 2015
Technology
0
180
Testes pythonicos com Py.test
Talk presented at Python Brasil [11] - In portuguese
Renato dos Santos Oliveira
November 11, 2015
Tweet
Share
More Decks by Renato dos Santos Oliveira
See All by Renato dos Santos Oliveira
Django Views: Boas Práticas
renatooliveira
0
320
Pythonic tests with Py.test
renatooliveira
0
180
Refactoring Django Applications (pt-BR)
renatooliveira
2
110
Django Migrations v1.0
renatooliveira
2
82
Other Decks in Technology
See All in Technology
Phase09_自動化_仕組み化
overflowinc
0
1.7k
契約書からの情報抽出を行うLLMのスループットを、バッチ処理を用いて最大40%改善した話
sansantech
PRO
2
260
From Senior to Staff : To infinity and beyond !
kuahyeow
0
110
AIエージェント×GitHubで実現するQAナレッジの資産化と業務活用 / QA Knowledge as Assets with AI Agents & GitHub
tknw_hitsuji
0
230
Phase02_AI座学_応用
overflowinc
0
2.8k
俺の/私の最強アーキテクチャ決定戦開催 ― チームで新しいアーキテクチャに適合していくために / 20260322 Naoki Takahashi
shift_evolve
PRO
1
440
脳が溶けた話 / Melted Brain
keisuke69
1
1k
RGBに陥らないために -プロダクトの価値を届けるまで-
righttouch
PRO
0
110
非同期・イベント駆動処理の分散トレーシングの繋げ方
ichikawaken
1
100
【PHPerKaigi2026】OpenTelemetry SDKを使ってPHPでAPMを自作する
fendo181
1
190
Bref でサービスを運用している話
sgash708
0
190
TUNA Camp 2026 京都Stage ヒューリスティックアルゴリズム入門
terryu16
0
370
Featured
See All Featured
Building Applications with DynamoDB
mza
96
7k
The World Runs on Bad Software
bkeepers
PRO
72
12k
DBのスキルで生き残る技術 - AI時代におけるテーブル設計の勘所
soudai
PRO
64
52k
Lightning talk: Run Django tests with GitHub Actions
sabderemane
0
150
エンジニアに許された特別な時間の終わり
watany
106
240k
Automating Front-end Workflow
addyosmani
1370
200k
The Hidden Cost of Media on the Web [PixelPalooza 2025]
tammyeverts
2
250
How People are Using Generative and Agentic AI to Supercharge Their Products, Projects, Services and Value Streams Today
helenjbeal
1
140
Neural Spatial Audio Processing for Sound Field Analysis and Control
skoyamalab
0
230
<Decoding/> the Language of Devs - We Love SEO 2024
nikkihalliwell
1
160
ピンチをチャンスに:未来をつくるプロダクトロードマップ #pmconf2020
aki_iinuma
128
55k
HDC tutorial
michielstock
1
580
Transcript
Testes Pythonicos com Py. test Renato Oliveira
Oush, quem?! ❏ Renato Oliveira ❏ 4ª Python Brasil ❏
Labcodes Software Studio ❏ Django Software Foundation ❏ Diretor (por mais algumas horas) de Tecnologia da APyB ❏ Organizador da Python Brasil[10]
Sumário ❏ Introdução ❏ Uso básico ❏ Test discovery ❏
Markers ❏ Fixtures ❏ Plugins
FIX IN PROD
Tests in prod
Tests in prod
“Pytest is a mature full featured Python testing tool that
helps you to write better programs.” Introdução
Introduction - Asserts com a palavra reservada assert def sum(a,
b): return a + b def test_sum(): assert sum(1, 1) == 2
Test discovery Simply run your tests with $ py.test
Test discovery Verbosely $ py.test -v
Test discovery Pytest recursivamente procura nas suas pastas por arquivos
de teste. test_*.py or *_test.py
Test discovery Você pode testar só um arquivo $ py.test
test_foo.py
Test discovery Você também pode executar só um teste $
py.test -k test_foo
Migrando código unittest Antes import unittest def to_upper(text): return text.upper()
class TestToUpper(unittest.TestCase): def test_to_upper(self): self.assertEqual(to_upper("pug"), "PUG")
Migrating Unittest code Depois def to_upper(text): return text.upper() def test_to_upper():
return to_upper("pug") == "PUG"
Markers Habilidade de adicionar metadata extra aos seus testes ❏
skipif ❏ xfail ❏ parametrize ❏ você também pode criar
skipif @pytest.mark.skipif(sys.version_info < (3, 3), reason="requires python3.3") def test_function(): assert
1 == 1
xfail @pytest.mark.xfail(reason="1 is not 2") def test_fail(): assert 1 ==
2
parametrize @pytest.mark.parametrize("input,expected", [ ("3+5", 8), ("2+4", 6), pytest.mark.xfail(("6*9", 42)), ])
def test_eval(input, expected): assert eval(input) == expected
slow test, fast test @pytest.mark.slow def test_slow(): assert 1 ==
1 @pytest.mark.fast def test_fast(): assert 1 == 1
Fixtures @pytest.fixture() def answer(): return 42 def test_the_ultimate_question_about_life_the_universe_and_everything(answer): assert answer
== 42
@pytest.fixture() def webdriver(request): driver = Firefox() request.addfinalizer(driver.quit) return driver def
test_pug_website_title(webdriver): webdriver.get("http://pycon.pug.pe/XXXVIII/") assert "Encontro do PUG-PE" in webdriver.title def test_python_website_title(webdriver): webdriver.get("http://python.org/") assert "Python" in webdriver.title
Compartilhe fixtures - pytest.mark.usefixtures - conftest.py - “usefixtures” no pytest.ini
Plugins úteis - pytest-django - pytest-mock - http://pytest. org/latest/plugins_index/index.html
Perguntas?
Obrigado! :)
[email protected]
@_renatooliveira github/renatooliveira www.labcodes.com.br