A quick introduction on how to setup a zf2 project using Behat and Phpspec.

1. Behavior-Driven Development
with Zend Framework 2
Zend Framework Day – Turin, Italy – 07/02/2014

2. DAVID CONTAVALLI
@mauipipe
2

3. CLEAN CODE ADEPT
BDD FANATIC
3

4. CLEAN CODE ADEPT
BDD FANATIC
4

5. WHAT IS BDD?

6. TDD Evolution
6

7. SAME RULES
1.
7
You are not allowed to write any production code
unless it is to make a failing unit test pass.

8. SAME RULES
1.
2.
8
You are not allowed to write any production code
unless it is to make a failing unit test pass.
You are not allowed to write any more of a unit test
than is sufficient to fail; and compilation failures are
failures.

9. SAME RULES
1.
2.
You are not allowed to write any more of a unit test
than is sufficient to fail; and compilation failures are
failures.
3.
9
You are not allowed to write any production code
unless it is to make a failing unit test pass.
You are not allowed to write any more production code
than is sufficient to pass the one failing unit test.

10. WHAT’S THE DIFFERENCE?

11. TDD STARTS FROM COMPONENTS

12. CREATE THE TEST
private $calculator;
function setUp(){
$this->calculator = new Calculator();
}
function testSumTwoPositive(){
$expectedResult = 8;
$result = $this->calculator(6,2);
assertEquals($expectedResult,$result);
}
12

13. 13

14. WRITE QUICK, TEST VALIDATING CODE
class Calculator{
public function sum($num1, $num2){
return 8;
}
}
14

15. 15

16. REFACTOR
class Calculator{
public function sum($num1, $num2){
$sum = $num1 + $num2;
return $sum;
}
}
16

17. 17

18. BDD STARTS FROM AN EXAMPLE

19. SPECIFICATION BY EXAMPLE
Scenario: Add two number
Given I fill number1 field with 2
And I fill number2 field with 6
When I press Add button
Then the result should be 8
19

20. A COMMON LANGUAGE
STAKEHOLDER
20

21. A COMMON LANGUAGE
DEVELOPER
STAKEHOLDER
21

22. A COMMON LANGUAGE
DEVELOPER
STAKEHOLDER
22
USER

23. LIVING DOCUMENTATION

24. HOW IS STORY CODE RELATED?

25. GHERKIN
Scenario: Add two number
Given I fill number1 field with 2
And I fill number2 field with 6
When I press Add button
Then the result should be 8
25

26. Interpreted in many languages
26

27. GHERKIN
27

28. GHERKIN
28

29. WHAT IS BEHAT?

31. Scenario: Add two numbers
Given I fill number1 field with value of 2
TRANSLATE
/**
* @Given /^I fill ([^’’]*) with (d+)$/
**/
public function iFieldFieldWith($number, $fieldName)
{
throw new PendingException();
}
31

32. EXECUTION
32

33. USERS WILL NOT READ STORIES

34. THEY WILL USE AN UI

35. BROWSER

36. HOW TO TEST BROWSER WITH BEHAT?
36

37. HERE IT COMES, MINK!

38. GHERKIN
+
38

39. Web Acceptance Test
GOUTTE
• Headless Browser
• No Javascript
• Really fast
39

40. Web Acceptance Test
GOUTTE
• Headless Browser
• No Javascript
• Really fast
40
SELENIUM
• Can test Javascript
• Really slow
• Use Firefox as emulator

41. Web Acceptance Test
GOUTTE
• Headless Browser
• No Javascript
• Really fast
41
SELENIUM
• Can test Javascript
• Really slow
• Use Firefox as emulator
Zombie.js
• Can test Javascript
• Medium
• Use Firefox as emulator

42. Web Acceptance Test
GOUTTE
• Headless Browser
• No Javascript
• Really fast
42
SELENIUM
• Can test Javascript
• Really slow
• Use Firefox as emulator
Zombie.js
• Can test Javascript
• Medium
• Use Firefox as emulator
SAHI
• Can test Javascript
• slow
• Emulate every Browser

43. Scenario: Add two numbers
Given I fill number1 field with 2
And I fill number2 field with 6
When I press Add button
Then the result should be 8
/**
* @When /^I press ‘’(/[^’’]*)’’ button$/
**/
public function iPressButton($buttonName)
{
$this->pressButton($buttonName);
}
43

44. How to install....
+
44

45. "require-dev " :{
.........
"behat/behat" : "2.4.*@stable",
"behat/mink": "1.5.0",
"behat/mink-extension":"*",
"behat/mink-browserkit-driver":"dev-master",
"behat/mink-goutte-driver":"*",
"phpspec/phpspec":" 2.0.*@dev"
}
45

46. Differs from documentation
because there is a fix for ZF2
multicheckbox selection
"require-dev " :{
.........
"behat/behat" : "2.4.*@stable",
"behat/mink": "1.5.0",
"behat/mink-extension":"*",
"behat/mink-browserkit-driver":"dev-master",
"behat/mink-goutte-driver":"*",
"phpspec/phpspec":" 2.0.*@dev"
}
46

47. Mink Setup
behat.yml
default :
extensions :
BehatMinkExtensionExtension :
base_url : 'http://example.com'
goutte : ~
47

48. +
+
48

49. Static method
private static app;
/**
* @BeforeSuite
**/
public static function initializeZf(){
If(self::$zendApp === null){
$path = __DIR__ .’/../../config/application.config.php’;
self::app = ZendMvcApplication::init(require $path);
}
}
49

50. ZF2 EXTENSION

51. "require-dev":{
................
"mvlabs/zf2behat-extension":"dev-master"
},
51

52. Zf2 Behat Extension
behat.yml
default :
extensions :
MvLabsZf2ExtensionZf2Extension :
config : config/application.config.php
module :
52

53. Zf2 Behat Extension
run from console
bin/behat --init ‘’module name’’
53

54. Feature Context
Implements Zf2AwareContextInterface
class FeatureContext extends MinkContext implements
Zf2AwareContextInterface{
private $zf2MvcApplication;
.........
public function setZf2App(Application $zf2MvcApplication) {
$this->zf2MvcApplication = $zf2MvcApplication;
}
}
54

55. WE STILL NEED TO TEST
OUR COMPONENTS

56. GHERKIN
+
56

57. WHY PHPSPEC?
57

58. BDD BASED ON BEHAVIOUR
DESCRIPTION
Robert C. Martin

59. PHPUnit focus on testing code
private $calculator;
function setUp(){
$this->calculator = new Calculator();
}
function testSumTwoPositive(){
$expectedResult = 8;
$result = $this->calculator(6,2);
assertEquals($expectedResult,$result);
}
59

60. PHPSpec focus on code behavior
function let(){
$this->shouldBeConstructed();
}
function it_sum_two_positive_number(){
$this->sum(2,6)->shouldReturn(8);
}
60

61. Subject under Specification
"It’s this unexisting object, on which you’re
calling unexisting methods and assuming future
outcomes. Most important thing? There could
be only one SUS in specification"
Kostantin Kudryashov
61

62. Developer Tool Vs Testing Framework
62

63. Autogenerates classes & methods
bin/phpspec desc ‘’ApplicationControllerIndexController’’
63

64. PROMOTES CLEAN CODE

65. Demeter Law's Violation
function let(){
$this->shouldBeConstructed();
}
function it_sum_two_positive_number(){
$this->getPlayer()->getSword()->shouldBeInstanceOf(‘Sword’);
}
65

66. Impossible
function let(){
$this->shouldBeConstructed();
}
function it_sum_two_positive_number(){
$this->getPlayer()->getSword()->shouldBeInstanceOf(‘Sword’);
}
66

67. Add PHPSpec to Zf2
+
67

68. "require-dev":{
...........
"phpspec/phpspec" : "2.0.*@dev"
},
"config": {
"bin-dir": "bin/"
},
"autoload": {
"psr-0" {
"Application" : " module/Application/src"
}
}
68

69. Add a single module
’’require-dev’’:{
"require-dev":{
...........
...
"phpspec/phpspec" : "2.0.*@dev"
"phpspec/phpspec":" 2.0.*@dev"
},
},
"config": {
"config": {
"bin-dir": "bin/"
"bin-dir": "bin«
},
},
"autoload": { {
"autoload":
"psr-0" { {
"psr-0":
"Application" : " module/Application/src"
"Application": "module/Application/src"
} }
}}
69

70. Add more modules
"require-dev":{
...........
"phpspec/phpspec" : "2.0.*@dev"
},
"config": {
"bin-dir": "bin/"
},
"autoload": {
"psr-0" {
"Application" : " module/Application/src",
"Calculator" : "module/Calculator/src"
}
}
70

71. Create phpspec.yml in project root
formatter.name : progresssuites
Application:
namespace : Application
spec_prefix : Spec
src_path : 'module/Application/src/'
spec_path : 'module/Application/'
ModuleDemo:
namespace : ModuleDemo
spec_prefix : Spec
src_path : 'module/ModuleDemo/src/'
spec_path : 'module/ModuleDemo/'
71

72. What to test with PHPSpec?
72

73. What to test with PHPSpec?
1.Model Logic
73

74. What to test with PHPSpec?
1.Model Logic
2.Factories
74

75. What to test with PHPSpec?
1.Model Logic
2.Factories
3.Validation
75

76. Behat bad practices
1. Verbose Stories
2. Using Mink to test REST calls
3. Testing every possible usages combination
4. Fixture loading within Context
76

77. WHY TESTING?

78. IT’S A TREND

80. RELAX

81. SOMEONE WILL READ YOUR CODE

82. IT COULD BE YOU SOME DAY

83. YOUR COLLEAGUES

84. OR
84

85. A VIOLENT PSYCHOPATH WHO
KNOWS WHERE YOU LIVE

87. Thank you for your attention
David Contavalli
@mauipipe

88. QUESTIONS?

89. @mauipipe
mauipipe@gmail.com

90. Some readings
90

91. Credits
https://www.flickr.com/photos/42788859@N00/318947873
https://www.flickr.com/photos/79811974@N08/8895959339/
https://www.flickr.com/photos/wingedwolf/5471047557/
https://www.flickr.com/photos/21112928@N07/2922128673/
https://www.flickr.com/photos/23408922@N07/8220573257/
https://www.flickr.com/photos/11956371@N07/4146284063/
http://www.flickr.com/photos/chemicalbrother/2540855983/
http://www.flickr.com/photos/slworking/5757370044/
http://www.flickr.com/photos/ter-burg/5807937726/
http://www.flickr.com/photos/thyagohills/5023536434/
http://www.flickr.com/photos/jeremybrooks/2175042537/
http://www.flickr.com/photos/bowmanlibrary/941844481/
http://www.flickr.com/photos/webhamster/2476756607/
http://www.flickr.com/photos/nebirdsplus/5835963068/
http://www.flickr.com/photos/mistaboos/4348381987/
http://www.flickr.com/photos/moofbong/4207382992/
http://www.flickr.com/photos/ryanh/43936630/
http://www.flickr.com/photos/nathangibbs/98592171/
http://www.flickr.com/photos/71894657@N00/2553948289/
http://www.flickr.com/photos/ahia/3168219760/
http://www.flickr.com/photos/smileham/3559228586/
http://www.flickr.com/photos/kk/3834592792/
http://www.flickr.com/photos/enoughproject/5776533975/
http://www.flickr.com/photos/_flood_/8067625282/
http://www.flickr.com/photos/drooo/3114233333/
http://www.flickr.com/photos/84143785@N00/3559757811
91

92. David Contavalli
@mauipipe