TPSE2014 :: Test Driven Development

SPRINT3R Siam Chamnankit Co., Ltd., Odd-e (Thailand) Co., Ltd. and Alliance

สมเกยรต ปยสง

เนน

SPRINT3R โดย บรษท สยาม

านาญกจ จา

กด บรษท ออด-อ (ประเ

ทศไทย) จากด

และพนธมตร

Thailand Practical Software Engineering 2014

C U R R E N T O F T D D

T E S T D R I V E N D E V E L O P M E N T

A C C E P TA N C E T E S T D R I V E N D E V E L O P M E N T

L A R G E R F E E D B A C K L O O P

H I S T O R Y O F T D D

http://c2.com/cgi/wiki?TenYearsOfTestDrivenDevelopment

1 9 6 0 ’ S

T H E S E C R E T O F A N C I E N T

www.l3ak.com

Professionals

Test their code

1 9 7 0 ’ S

K E N T B E C K

http://www.flickr.com/photos/mwichary/2376639066/

Separate what from how

1 9 8 9

S H O R T - C I R C U I T T H E P R O C E S S

Automated tests

Confirm features

1 9 9 6

T E S T F I R S T I N C 3 P R O J E C T

http://www.martinfowler.com/bliki/C3.html

It’s a change in culture

X U N I T

E X P A N D T H E W O R L D

C 2 W I K I

“Working”

is not good enough

1 9 9 9

T H E O R I G I N O F M O C K O B J E C T

Listen to the tests

2 0 0 1

C O N T I N U O U S B U I L D

W O R K O N M Y M A C H I N E !

Working system

provides feedback

Safety culture

T E S T D OX S T Y L E

A Sheep eats grassA Sheep produces good milk

A Sheep moves away from dogs

Focus on intent

2 0 0 2

F I R S T T D D B O O K

Remove duplication

Write a fail test beforewrite any code

When you are lost,

slow down

2 0 0 3

A L O T O F B O O K

2 0 0 4

T D D F O R C U S T O M E R

Confirm understanding

with examples

L I V I N G I N R E A L W O R L D

Legacy code

code without tests

N E X T G E N E R AT I O N

2 0 0 7

T H E R E S E A R C H S U G G E S T S

More effort, better quality

More visible on project

Very hard to getmeaningful results

U N D E R S TA N D

Professionals test their code

Separate what from how

Automatic tests confirm features

It’s change in culture

Working is not good enough

Listen to the tests

Working system provide feedback

Focus on intent

U N D E R S TA N D

When you are lost, slow down

It’s not only about testing

Legacy code is code without tests

Understand the principles behind the practice

U N D E R S TA N D

Feedback

Professionalism

T D D E R

T E S T S T R U C T U R E

B A S I C

Execute

Verify

Clean-up

S E V T

Exercise

Verify

Teardown

E X A M P L E

G O O D T E S T

P R O P E R T I E S

A - T R I P

Automated Thorough Repeatable Independent Professional

T E S T T O O L S

X U N I T

http://en.wikipedia.org/wiki/List_of_unit_testing_frameworks

C O D I N G D O J O

http://www.aikido-yamada.eu/

1 อานวา 1

2 อานวา 2

3 อานวา Fizz

4 อานวา 4

F I Z Z B U Z Z

5 อานวา Buzz

7 อานวา 7

8 อานวา 8

10 อานวา Buzz

http://en.wikipedia.org/wiki/Fizz_buzz

15 อานวา FizzBuzz

F I Z Z B U Z Z

T E S T D R I V E N D E V E L O P M E N T

All the tests pass

There is no duplication

Focus your intent

S I M P L E D E S I G N R U L E S

Classes and methods are minimized

TPSE2014 :: Test Driven Development

Technology

Transcript of TPSE2014 :: Test Driven Development

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