TDD er død. Lenge leve TDD!

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Ryktene om TDDs død er sterkt overdrevet, men det har skjedd mye inn test-drevet utvikling siden Kent Beck introduserte TDD med Extreme Programming i 1999. TDD, BDD, ATDD, ST, DDT … hvordan passer alt dette sammen? Hva skal til for å lykkes med automatisert testing?

Software

TDD er død. Lenge leve TDD!
Kjetil Klaussen
Capitech AS

Hva
Hvordan
Nekrolog
Test-Driven Development

Kunsten
å kunne
endre
mening
Plan A
Plan B
Plan C

First, solve the problem.
Then, write the code.
— John Johnson

Make it work.
Make it right.
Make it fast.
- Kent Beck

Kode
Debug
Debug-Driven Development
Debug

Be humble about what
tests can achieve.
Tests don’t improve
quality: developers do.
- James O. Coplien

If it doesn’t work,
it doesn’t matter how
fast it doesn’t work.
— Mich Ravera

Backend
IIS Apache Node
RDBMS NoSQL ESB
Frontend MobilWeb Windows
NTFS

Backend C# Java Ruby Python JavaScript
Storage RDBMS NoSQL ESB MSMQ RabbitMQ
Frontend
AndroidWeb
JavaScript
HTML/CSS
WPF
XAML
C#
XML
Java
TCP Named pipesHTTP Web Sockets
TCP Named pipesHTTP Web Sockets
HTML/CSS XAML XML GUI
UI

Backend C# Java Ruby Python JavaScript
Frontend
AndroidWeb
JavaScript
WPF
C# Java
TDD: Test-først enhetstesting

Backend C# Java Ruby Python JavaScript
Frontend
AndroidWeb
JavaScript
WPF
C# Java
Proxy Facade
Mediator Strategy Factory Facade State
Observer Composite Strategy Visitor
Repository Adapter Factory Memento

Backend C# Java Ruby Python JavaScript
Controller
RequestModel
ResponseModel
Repository
Domenemodell
x
y
z

Funksjonelle tester
BDD
Behaviour-Driven Dev
ATDD
Acceptance Test-Driven Dev
SbE
Specification by Example
SDD
Storytest-Driven Dev
AAT
Agile Acceptance Testing
EDD
Example-Driven Dev

Stop obsessing about
unit tests, embrace
backfilling of tests
when you're happy with
the design, and strive for
overall system clarity
as your principle pursuit.
- David Heinemeier Hansson

Verktøy & Bibliotek
Enhetstesting
• C#
• XUnit.net
• NCrunch
• TestDriven.Net
• JavaScript
• Jasmine
• Karma
• Karma Test Adapter for Visual Studio
• PhantomJS
Funksjonelle tester
• SpecFlow
• Coypu
• Firefox

Any fool can write code
that a computer can
understand.
Good programmers write
code that humans can
understand.
- Martin Fowler

Takk!
kjetil.klaussen@gmail.com
kjetilk.com
@kjetilkl
no.linkedin.com/in/kjetilk

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TDD er død. Lenge leve TDD!

1. TDD er død. Lenge leve TDD! Kjetil Klaussen Capitech AS

3. Hva Hvordan Nekrolog Test-Driven Development

4. Kunsten å velge enkle løsninger

5. Kunsten å kunne endre mening Plan A Plan B Plan C

6. First, solve the problem. Then, write the code. — John Johnson

7. Rød Grønn Refaktorer

8. Make it work. Make it right. Make it fast. - Kent Beck

9. Kode Debug Debug-Driven Development Debug

10.

11.

12. Be humble about what tests can achieve. Tests don’t improve quality: developers do. - James O. Coplien

13. System-tester

14. If it doesn’t work, it doesn’t matter how fast it doesn’t work. — Mich Ravera

15. Backend IIS Apache Node RDBMS NoSQL ESB Frontend MobilWeb Windows NTFS

16. Enhetstester

17. Backend C# Java Ruby Python JavaScript Storage RDBMS NoSQL ESB MSMQ RabbitMQ Frontend AndroidWeb JavaScript HTML/CSS WPF XAML C# XML Java TCP Named pipesHTTP Web Sockets TCP Named pipesHTTP Web Sockets HTML/CSS XAML XML GUI UI

18. Backend C# Java Ruby Python JavaScript Frontend AndroidWeb JavaScript WPF C# Java TDD: Test-først enhetstesting

19. Backend C# Java Ruby Python JavaScript Frontend AndroidWeb JavaScript WPF C# Java Proxy Facade Mediator Strategy Factory Facade State Observer Composite Strategy Visitor Repository Adapter Factory Memento

20. Ekte vare Billig kopi

21.

22. Backend C# Java Ruby Python JavaScript Controller RequestModel ResponseModel Repository Domenemodell x y z

23. Funksjonelle tester BDD Behaviour-Driven Dev ATDD Acceptance Test-Driven Dev SbE Specification by Example SDD Storytest-Driven Dev AAT Agile Acceptance Testing EDD Example-Driven Dev

24. Backend C# Java Ruby Python JavaScript Storage RDBMS NoSQL ESB MSMQ RabbitMQ Frontend AndroidWeb JavaScript HTML/CSS WPF XAML C# XML Java TCP Named pipesHTTP Web Sockets TCP Named pipesHTTP Web Sockets

25.

26.

27. Stop obsessing about unit tests, embrace backfilling of tests when you're happy with the design, and strive for overall system clarity as your principle pursuit. - David Heinemeier Hansson

28.

29.

30.

31. Backend C# Java Ruby Python JavaScript Storage RDBMS NoSQL ESB MSMQ RabbitMQ Frontend AndroidWeb JavaScript HTML/CSS WPF XAML C# XML Java TCP Named pipesHTTP Web Sockets TCP Named pipesHTTP Web Sockets

32.

33.

34.

35.

36.

37.

38.

39.

40.

41.

42.

43. Verktøy & Bibliotek Enhetstesting • C# • XUnit.net • NCrunch • TestDriven.Net • JavaScript • Jasmine • Karma • Karma Test Adapter for Visual Studio • PhantomJS Funksjonelle tester • SpecFlow • Coypu • Firefox

44. Any fool can write code that a computer can understand. Good programmers write code that humans can understand. - Martin Fowler

45. Takk! kjetil.klaussen@gmail.com kjetilk.com @kjetilkl no.linkedin.com/in/kjetilk

TDD er død. Lenge leve TDD!

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