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Test-driven development with PHPUnit
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Oliver Klee
August 05, 2022
Programming
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Test-driven development with PHPUnit
Oliver Klee
August 05, 2022
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Transcript
Test-driven development with PHPUnit Oliver Klee, 2022-08 @oliklee
| Mastodon:
[email protected]
|
[email protected]
About me Oliver „Oli“ Klee #bonn #extension-dev #workshop-teacher #unit-testing-guy #phpstan-guy
#typo3-ombudsperson #typo3-quality-assurance-initiative #gami fi cation-working-group #game-cooking #powermetal
???
The goals ✓ You have a clearer understanding on how
TDD works. ✓(optional) You get test-infected. ✓You learn at least 1 new testing pattern. ✓We all have fun.
The travel plan 1. getting starte d 2. concepts &
term s 3. testing pattern s 4. hands-o n 5. naming test s 6. hands-o n 7. ending & feedback
The rules 1. There are no stupid questions. 2. The
joker rule.
The travel plan 1. getting starte d 2. concepts &
term s 3. testing pattern s 4. hands-o n 5. naming test s 6. hands-o n 7. ending & feedback
Unit Tests?
Manual testing is cumbersome
Automated testing is fast
Unit tests for the TYPO3 Core
Unit Tests 406 (144) tests/s
Functional Tests 8.13 (1.97) tests/s
Acceptance Tests .009 (.003) tests/s
Verify that your code does what you expect
Make sure that your changes won‘t break anything
Keep others from breaking your code
Don’t break anything even in complex projects
Create a safety net for refactoring or for TYPO3
updates
Improve the structure of your code
Find the location of bugs
Green feels good!
Let’s get some terms straight
The two programming modes clean hacky
Testsuite Testcase Test Assertion Test Test Testcase
The life cycle of a test new FooTest(); setUp(); /**
@test */ lifeIsGood(); tearDown();
Code test-first write test write code refactor
The travel plan 1. getting starte d 2. concepts &
term s 3. testing pattern s 4. hands-o n 5. naming test s 6. hands-o n 7. ending & feedback
The travel plan 1. getting starte d 2. concepts &
term s 3. testing pattern s 4. hands-o n 5. naming test s 6. hands-o n 7. ending & feedback
https://github.com/TYPO3-Documentation/tea/ Branch: workshop/t3dd22 File: Exercises.md
The travel plan 1. getting starte d 2. concepts &
term s 3. testing pattern s 4. hands-o n 5. naming test s 6. hands-o n 7. ending & feedback
Naming Tests
Use meaningful test names classCanBeInstantiated setTitleSetsTitle setSizeWithZeroThrowsException hasTitleForEmptyTitleReturnsFalse Name the
behavior. Name the preconditions. Name the method. Don’t use “works” or “works correctly”. measureFrubbleWorksCorrectly
The travel plan 1. getting starte d 2. concepts &
term s 3. testing pattern s 4. hands-o n 5. naming test s 6. hands-o n 7. ending & feedback