Palestra no Marebase2011 com titulo: "Oxente, ramo falar de BDD macho, depois rebola no mato esse codigo réi!"

1. Oxente, ramo falar de BDD
macho, depois rebola no
mato esse codigo réi!
Não cuideis que vim trazer a paz à terra;
não vim trazer paz, mas pexeira;
http://www.bibliaonline.com.br/acf/mt/10

2. Traditional Software Life Cycle
Software Life Cycle
Development Maintenance
First Deploy - Transition

3. Traditional Iterations
Process Disciplines Inception Elaboration Construction Transition
Business Modeling
Requirements
Analysis & Design
Implementation
Test
Deployment
Preliminary Iter. Iter. Iter. Iter. Iter. Iter. Iter.
Iteration(s)‫‏‬ #1 #2 #n #n+1 #n+2 #m #m+1
Iterations
Business Requirements Analysis Design Implementation Test Deployment

4. Too Late Feedback
Process Disciplines Inception Elaboration Construction Transition
Business Modeling
Requirements
Analysis & Design
Implementation
Test
Deployment
Preliminary Iter. Iter. Iter. Iter. Iter. Iter. Iter.
Iteration(s)‫‏‬ #1 #2 #n #n+1 #n+2 #m #m+1
Iterations
Business Requirements Analysis Design Implementation Test Deployment
failure when changes happen or feature misunderstood

5. Laggards Tests
Process Disciplines Inception Elaboration Construction Transition
Business Modeling
Requirements
Analysis & Design
Implementation
Test
Deployment
Preliminary Iter. Iter. Iter. Iter. Iter. Iter. Iter.
Iteration(s)‫‏‬ #1 #2 #n #n+1 #n+2 #m #m+1
Iterations
Business Requirements Analysis Design Implementation Test Deployment
Fragile coverage and poor code
with low Cohesion and high Coupling

6. Migrating to Agile Iteration
Process Disciplines Inception Elaboration Construction Transition
Business Modeling
Requirements
Analysis & Design
Implementation
Test
Deployment
Preliminary Iter. Iter. Iter. Iter. Iter. Iter. Iter.
Iteration(s)‫‏‬ #1 #2 #n #n+1 #n+2 #m #m+1
Iterations

7. Not Enough Time
Process Disciplines Inception Elaboration Construction Transition
Business Modeling
Requirements
Analysis & Design
Implementation
Test
Deployment
Preliminary Iter. Iter. Iter. Iter. Iter. Iter. Iter.
Iteration(s)‫‏‬ #1 #2 #n #n+1 #n+2 #m #m+1
Iterations
Tests are traditionally discarded
when not enough time

8. Test First Practice
Process Disciplines Inception Elaboration Construction Transition
Test
Business Modeling
Requirements
Analysis & Design
Implementation
Deployment
Preliminary Iter. Iter. Iter. Iter. Iter. Iter. Iter.
Iteration(s)‫‏‬ #1 #2 #n #n+1 #n+2 #m #m+1
Iterations
Test First modifies the traditional
approach to modeling and analysis

9. Test Driven Development
"Test-driven development is a way of
managing fear during programming."
Kent Beck - Test Driven
Development by Example

10. Daily Development
Standup Meeting Pair Up
TDD Cycle
Test
Code Refactoring
Integrate

11. Red Bar Patterns
One Step Test
Starter Test Testing Bar Patterns
Explanation Test Child Test
Learning Test Mock Object
Another Test Self Shunt
Regression Test Crash Test Dummy
Break Broken Test
Do Over Clean Check-Inc
Test Double
Dummy Green Bar Patterns
Fake Fake It (Till you make it)‫‏‬
Stubs Triangulate
Spies Obvious Implementation
Mocks One to Many

12. The Three A's in TDD
Arrange (create an object)‫‏‬
Act (executing a method)‫‏‬
Assert (verifying a result)‫‏‬
Refactoring Workbook, Bill Wake

13. Arrange
var object = Object.create({test:10});

14. Act
var object = Object.create({test:10});
var verified = object.trying("test");

15. Assert
var object = Object.create({test:10});
var verified = object.trying("test");
ok( verified == 10 );

16. 3A
var object = Object.create({test:10});
var verified = object.trying("test");
ok( verified == 10 );

17. XUnit
test("Trying contents of a property
without throwing exception", function()
{
var object = Object.create({test:10})
ok( object.trying("test") == 10, "Cool" );
});

18. What You Are Doing
describe('jsonform',function(){
});

19. Establish The Context
describe('jsonform',function(){
context('Populate form with json',function(){
}
});

20. Specify The Behavior
describe('jsonform',function(){
context('Populate form',function(){
it('Json with object nested',function(){
}
}
});

21. Should
describe('jsonform',function(){
context('Populate form',function(){
it('Json with object nested',function(){
jQuery('#jsonform').jsonform(object,
function(json) {
expect(jQuery(query).val().toString())
.toEqual("1.02.0002");
});
}
}
});

22. Behaviour
BDD provides a “ubiquitous language” for analysis
Dan North
http://dannorth.net/introducing-bdd/

23. Acceptance
As a
I want
so that

24. Criteria
Given some initial context (the givens),
When an event occurs,
Then ensure some outcomes.

25. ATDD
feature('Using jQuery plugin to populate form', function() {
summary(
'In order to submit my form',
'As a user',
'I want populate a form with json'
);
scenario('The is stopped with the engine off', function() {
var object;
given('json object', function() {
});
and('form html', function() {
});
when('I press the start button', function() {
});
then('The expected ', function() {
expect(expected).toEqual("expected");
});
});
});

26. ATDD
feature('Using jQuery plugin to populate form', function() {
summary(
'In order to submit my form',
'As a user',
'I want populate a form with json'
);
scenario('The is stopped with the engine off', function() {
var object;
given('json object', function() {
object = {
nested: {id: 2, name: "Teste"},
array_nested: [
{nested: {id: 3, name: "Teste"} }
],
description: "Teste",
value: "125,67",
date: "12/03/1999"
};
});
and('form html', function() {
var template = "<form action='#' id='jsonform'>
...
</form>";
jQuery(template).appendTo("body");
});
when('I press the start button', function() {
jQuery('#jsonform').jsonform(object);
});
then('The car should start up', function() {
expect(jQuery(query).val().toString()).toEqual("Teste");
});
});
});

27. Daily Development
Standup Meeting Pair Up
BDD/TDD Cycle Acceptance Model
Test Storming
Test
Code Refactoring
Refactoring Code
Integrate

28. BDD
TDD + DDD (+ATDD)

29. Transition Frontier Broken
Software Life Cycle
Development Maintenance
Desenvolvimento Manutenção
Test Test Test
Modeling Modeling Modeling
Requirements Requirements Requirements
Analysis & Design Analysis & Design Analysis & Design
Implementation Implementation Implementation
Deployment Deployment Deployment
Transition frontier no longer makes sense