Many Symfony2 developers have heard about Behat and even use it regularly in their Symfony projects. If you have found value in this tool and the BDD practices it was inspired on, come join us for this talk as we will expand on what other benefits these practices and other BDD tools available can bring. This very illustrative talk will not only present you with the tools but show how to use them together to build beautifully architected, business-oriented Symfony2 applications.

1. Full Stack BDD for
Symfony2
Marcello Duarte
Konstantin Kudryashov

2. About us
Marcello Duarte
Head of Training
Konstantin Kudryashov
Lead Developer

3. This talk
• Where are we coming from
• Why BDD
• Behat Best Practices
• Introducing a new tool

4. from
Cucumber to

6. Adults don’t think
their way into a new
way of acting

7. Adults don’t think
their way into a new
way of acting
They act their way
into a new way of
thinking

8. Ask Why

9. from xUnit
to xSpec
HP S pec
P

10. ? ? ?
? ?
? ?
? Test ?
? ? ?
?
? ? ? ? ?

11. code coverage
private
xUnit
database mocking
assert
structure

12. Language matter

13. public function testUpdateWithEqualTypes()
{
$installer = $this->createInstallerMock();
$manager = new InstallationManager('vendor');
$manager->addInstaller($installer);
$initial = $this->createPackageMock();
$target = $this->createPackageMock();
$operation = new UpdateOperation($initial, $target, 'test');
$initial
->expects($this->once())
->method('getType')
->will($this->returnValue('library'));
$target
->expects($this->once())
->method('getType')
->will($this->returnValue('library'));
$installer
->expects($this->once())
->method('supports')
->with('library')
->will($this->returnValue(true));
$installer
->expects($this->once())
->method('update')
->with($this->repository, $initial, $target);

14. Tools matter

15. Why BDD?

16. Requirements
Analysis
Design
Develop
Test
9 months 3 months 2 months 12 months ...
[Royce 1970]

17. Most of the cost in
software development
is in
feedback delay

18. Requirements
Acceptance
Test
Code
Refactoring
~20 minutes
[Beck & Cunningham 1996-99]

19. Let’s reduce
feedback delay

20. Let’s rename a
few things

21. Narratives
(Why?)
Examples
(What do you
mean?)
Describe
Object
How! Implement
Incremental
Design
[North 03]

23. Building a simple
Student can enrol
on a course
feature

24. You can follow
our steps
http://git.io/t4kQ5Q

25. BDD Rules
• No examples until you have a red step
• No code until you have a red example
• No more code than enough to make it green
• Don’t get carried away!

26. Behat tips
• Favour MinkAwareInterface over MinkContext
• Extract context per role
• Group features under feature folder
• Use Mink API
• Integrate with framework at config level

27. PHPSpec2 tips
• Describe classes not configuration
• Concentrate on messages/behaviours

28. ? ? ?
? ?
? ?
?Questions ?
? ? ?
?
? ? ? ? ?

29. joind.in/7064
Thanks! :)