Unit testing PHP apps with PHPUnit
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Unit testing, everyone talks about it and wants to do it but never gets around to actually start testing. Complex spaghetti code and time / budget pressures are often the reasons why nobody dives in and gets started with testing. But when the application breaks, and people loose money or worse it's often too late. In this talk I will take you on a journey with real examples that will show you how you can set up your tests, how to test complex situations with legacy spaghetti code, test web services, database interactions and how to gradually build a solid foundation to safeguard the core code base and everything around it. Don't you want to be confident when you walk out the office?
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Unit testing PHP apps with PHPUnit
- 1. Day Camp 4 Developers Day Camp 4 Developers & 2 Unit Testing PHP apps with PHPUnit
- 3. Let’s talk about tes6ng 3
- 4. Excuses not to test • No 6me • Not in budget • We don’t know how -‐ valid and honest answer -‐ right, like that’s going to happen • We add unit tests a@er finish project •… 4
- 5. No excuses 5
- 6. Unit tes6ng is fun and easy! • When you write code • You already test in your head • Write out these test(s) • And protect your code base 6
- 7. How to get started? 7
- 8. My example code • Get this example from GitHub -‐ hQps://github.com/in2it/Utexamples project/ src/ Utexamples/ Calculator.php autoload.php tests/ Utexamples/ CalculatorTest.php 8
- 9. Simple example class • Add by one -‐ adds the current value by one ?php ! namespace Utexamples; ! ! /** ! * Class that allows us to make all sorts of calculations ! */ ! class Calculator ! { ! protected $_value = 0; ! ! /** ! * Adds the current value by one ! * ! * @return int The value from this method ! */ ! public function addByOne() ! { ! $this-_value++; ! return $this-_value; ! } ! } 9
- 10. Our unit test ?php ! namespace Utexamples; ! ! Class CalculatorTest extends PHPUnit_Framework_TestCase ! { ! public function testCalculatorCanAddByOne() ! { ! $calculator = new Calculator(); ! $result = $calculator-addByOne(); ! $this-assertSame(1, $result); ! } ! } 10
- 11. My autoloader ?php ! ! /** ! * Simple autoloader that follow the PHP Standards Recommendation #0 (PSR-0) ! * @see https://github.com/php-fig/fig-standards/blob/master/accepted/ PSR-0.md for more informations. ! * ! * Code inspired from the SplClassLoader RFC ! * @see https://wiki.php.net/rfc/splclassloader#example_implementation ! */ ! spl_autoload_register(function($className) { ! $className = ltrim($className, ''); ! $fileName = ''; ! $namespace = ''; ! if ($lastNsPos = strripos($className, '')) { ! $namespace = substr($className, 0, $lastNsPos); ! $className = substr($className, $lastNsPos + 1); ! $fileName = str_replace(! '', DIRECTORY_SEPARATOR, $namespace) . DIRECTORY_SEPARATOR; ! } ! $fileName = __DIR__ . DIRECTORY_SEPARATOR . $fileName . $className . '.php'; ! if (file_exists($fileName)) { ! require $fileName; ! ! return true; ! } ! ! return false; ! }); 11
- 14. A lot of parameters! • Easily possible to make mistakes • Every developer might use different params • Not easy for (semi-‐)automated tes6ng -‐ Using IDE for running unit tests 13
- 15. Let’s op6mise this ?xml version=1.0 encoding=UTF-8? ! !-- file: project/phpunit.xml -- ! phpunit bootstrap=./src/autoload.php colors=true ! testsuite name=Unit Test Example code directory./tests/directory /testsuite ! filter whitelist directory suffix=.php./src/directory exclude directory suffix=.phtml./src/directory /exclude /whitelist /filter ! /phpunit 14
- 16. Now run more relaxed 15
- 17. Now run more relaxed 15
- 18. We’re no grads anymore 16
- 19. Real apps, real money 17
- 20. 18
- 21. How to reach the top 19
- 23. Simple Product Model Product _productId : integer _code : string _title : string _description : string _image : string _price : float _created : DateTime _modified : DateTime __construct($params : null | array) setProductId($productId : integer) : Product getProductId() : integer setCode($code : string) : Product getCode() : string setTitle($title : string) : Product getTitle() : string setDescription($description : string) : Product getDescription() : string setImage($image : string) : Product getImage() : string setPrice($price : float) : Product getPrice() : float setCreated($created : string | DateTime) : Product getCreated() : DateTime setModified($modified : string | DateTime) : Product getModified() : DateTime populate($data : array) toArray() : array __toString() : string 21
- 24. A simple ProductTest ?php ! namespace UtexamplesModel; ! /** ! * Class ProductTest ! * @package UtexamplesModel ! * @group Model ! */ ! class ProductTest extends PHPUnit_Framework_TestCase ! { ! public function testProductCanBePopulated() ! { ! $data = array ( ! 'productId' = 1, ! 'code' = 'TSTPROD1', ! 'title' = 'Test product 1', ! 'description' = 'This is a full description of test product 1', ! 'image' = 'image.png', ! 'price' = 123.95, ! 'created' = '2013-11-20 16:00:00', ! 'modified' = '2013-11-20 17:00:00', ! ); ! ! $product = new Product($data); ! $this-assertEquals($data, $product-toArray()); ! } ! } 22
- 25. A simple ProductTest ?php ! namespace UtexamplesModel; ! /** ! * Class ProductTest ! * @package UtexamplesModel ! * @group Model ! */ ! class ProductTest extends PHPUnit_Framework_TestCase ! { ! public function testProductCanBePopulated() ! { ! $data = array ( ! 'productId' = 1, ! 'code' = 'TSTPROD1', ! 'title' = 'Test product 1', ! 'description' = 'This is a full description of test product 1', ! 'image' = 'image.png', ! 'price' = 123.95, ! 'created' = '2013-11-20 16:00:00', ! 'modified' = '2013-11-20 17:00:00', ! ); ! ! $product = new Product($data); ! $product = new Product($data); ! $this-assertEquals($data, $product-toArray()); $this-assertEquals($data, $product-toArray()); ! } ! } 22
- 28. data fixture public function goodDataProvider() { ! return array ( ! array ( ! 1, ! 'TSTPROD1', ! 'Test Product 1', ! 'This is a full description of test product 1', ! 'image.png', ! 123.95, ! '2013-11-20 16:00:00', ! '2013-11-20 17:00:00', ! ), ! array ( ! 2, ! 'TSTPROD2', ! 'Test Product 2', ! 'This is a full description of test product 2', ! 'image.png', ! 4125.99, ! '2013-11-20 16:00:00', ! '2013-11-20 17:00:00', ! ), ! ); ! } 24
- 29. Using @dataProvider /** ! * @dataProvider goodDataProvider ! */ ! public function testProductCanBePopulated( ! $productId, $code, $title, $description, $image, $price, $created, $modified ! ) ! { ! $data = array ( ! 'productId' = $productId, ! 'code' = $code, ! 'title' = $title, ! 'description' = $description, ! 'image' = $image, ! 'price' = $price, ! 'created' = $created, ! 'modified' = $modified, ! ); ! ! $product = new Product($data); ! $this-assertEquals($data, $product-toArray()); ! } 25
- 30. Using @dataProvider /** ! /** ! * @dataProvider goodDataProvider ! * @dataProvider goodDataProvider ! */ ! */ public function testProductCanBePopulated( ! $productId, $code, $title, $description, $image, $price, $created, $modified ! ) ! { ! $data = array ( ! 'productId' = $productId, ! 'code' = $code, ! 'title' = $title, ! 'description' = $description, ! 'image' = $image, ! 'price' = $price, ! 'created' = $created, ! 'modified' = $modified, ! ); ! ! $product = new Product($data); ! $this-assertEquals($data, $product-toArray()); ! } 25
- 33. To protect and to serve 27
- 34. OWASP top 10 exploits https://www.owasp.org/index.php/Top_10_2013-Top_10 28
- 36. Libs you can use • Zend Framework 1: Zend_Filter_Input • Zend Framework 2: ZendInputFilter • Symfony: SymfonyComponentValidator • Aura: AuraFrameworkInputFilter • Lithium: lithiumu6lValidator • Laravel: AppValidator 30
- 37. Modify our Product class ?php ! namespace UtexamplesModel; ! ! class Product extends ModelAbstract ! { ! ...! /** ! * @var Zend_Filter_Input The filter/validator for this Product ! */ ! protected $_inputFilter; ! ! /** ! * @var bool The validation of data for this Product ! */ ! protected $_valid; ! ! /** ! * Helper class to create filter and validation rules ! * ! * @access protected ! */ ! protected function _createInputFilter() ! { ! ...! } ! ...! } 31
- 38. _createInputFilter() protected function _createInputFilter() ! { ! $filters = array ( ! 'productId' = array('Int'), ! 'code' = array ('StripTags', 'StringTrim', 'StringToUpper'), ! 'title' = array ('StripTags', 'StringTrim'), ! 'description' = array ('StripTags', 'StringTrim'), ! 'image' = array ('StripTags', 'StringTrim','StringToLower'), ! 'price' = array (), ! ); ! $validators = array ( ! 'productId' = array ( ! 'Int', ! array ('GreaterThan', array ('min' = 0, 'inclusive' = true)), ! ), ! 'code' = array ( ! 'Alnum', ! array ('StringLength', array ('min' = 5, 'max' = 50)), ! ), ! 'title' = array ('NotEmpty'), ! 'description' = array ('NotEmpty'), ! 'image' = array ('NotEmpty'), ! 'price' = array ( ! 'Float', ! array ('GreaterThan', array ('min' = 0, 'inclusive' = true)), ! ), ! ); ! $this-_inputFilter = new Zend_Filter_Input($filters, $validators); ! } 32
- 39. Modify your seQers /** ! * Set the product code for this Product ! * ! * @param string $code ! * @return Product ! */ ! public function setCode($code) ! { ! $this-_inputFilter-setData(array ('code' = $code)); ! if ($this-_inputFilter-isValid('code')) { ! $this-_code = $this-_inputFilter-code; ! $this-setValid(true); ! } else { ! $this-setValid(false); ! } ! return $this; ! } 33
- 40. Modify your seQers /** ! * Set the product code for this Product ! * ! * @param string $code ! * @return Product ! */ ! public function setCode($code) ! $this-_inputFilter-setData(array ('code' = $code)); { ! if ($this-_inputFilter-isValid('code')) { ! $this-_inputFilter-setData(array ('code' = $code)); ! $this-_code = $this-_inputFilter-code; ! if ($this-_inputFilter-isValid('code')) { ! $this-_code = $this-_inputFilter-code; ! $this-setValid(true); ! $this-setValid(true); ! } else { ! } else { ! $this-setValid(false); ! $this-setValid(false); ! } ! ! } return $this; ! return $this; } ! 33
- 41. Using dataproviders again public function badDataProvider() ! { ! return array ( ! array ( ! 1, '', '', '', '', 0, ! '0000-00-00 00:00:00', ! '0000-00-00 00:00:00', ! ), ! array ( ! 1, ! '!@#$%^@^*{}[]=-/'', 'Test Product 1', ! 'This is a full description of test product 1', 'image.png', ! 123.95, '2013-11-20 16:00:00', '2013-11-20 17:00:00', ! ), ! array ( ! 1, '' OR 1=1; --', 'Test Product 1', ! 'This is a full description of test product 1', 'image.png', ! 123.95, '2013-11-20 16:00:00', '2013-11-20 17:00:00', ! ), ! ); ! } 34
- 42. And now we test for valid data /** ! * @dataProvider badDataProvider ! */ ! public function testProductRejectsBadData( ! $productId, $code, $title, $description, $image, $price, $created, $modified ! ) ! { ! $data = array ( ! 'productId' = $productId, ! 'code' = $code, ! 'title' = $title, ! 'description' = $description, ! 'image' = $image, ! 'price' = $price, ! 'created' = $created, ! 'modified' = $modified, ! ); ! ! $product = new Product($data); ! $this-assertFalse($product-isValid()); ! } 35
- 43. And now we test for valid data /** ! * @dataProvider badDataProvider ! */ ! public function testProductRejectsBadData( ! $productId, $code, $title, $description, $image, $price, $created, $modified ! ) ! { ! $data = array ( ! 'productId' = $productId, ! 'code' = $code, ! 'title' = $title, ! 'description' = $description, ! 'image' = $image, ! 'price' = $price, ! 'created' = $created, ! 'modified' = $modified, ! ); ! ! $product = new Product($data); ! $product = new Product($data); ! $this-assertFalse($product-isValid()); ! $this-assertFalse($product-isValid()); } 35
- 46. Databases, the wisdom fountain 37
- 47. 4 stages of database tes6ng • Setup table fixtures • Run tests on the database interac6ons • Verify results of tests • Teardown the fixtures 38
- 48. Data fixture data set 39
- 49. Hello DBUnit ?php ! namespace UtexamplesModel; ! ! use PHPUnit_Extensions_Database_DataSet_IDataSet; ! use PHPUnit_Extensions_Database_DB_IDatabaseConnection; ! use PHPUnit_Extensions_Database_DataSet_QueryDataSet; ! ! class ProductDbTest extends PHPUnit_Extensions_Database_TestCase ! { ! protected $_pdo; ! ! public function __construct() ! { ! $this-_pdo = new PDO('sqlite::memory:'); ! $this-_pdo-exec(! file_get_contents(dirname(__DIR__) . ‘/../../data/schema.sqlite.sql')! ); ! } ! ! final public function getConnection() ! { ! return $this-createDefaultDBConnection($this-_pdo, 'sqlite'); ! } ! ! protected function getDataSet() ! { ! return $this-createFlatXMLDataSet(dirname(__DIR__) . '/_files/initialDataSet.xml'); ! } ! } 40
- 50. Hello DBUnit ?php ! namespace UtexamplesModel; ! ! use PHPUnit_Extensions_Database_DataSet_IDataSet; ! use PHPUnit_Extensions_Database_DB_IDatabaseConnection; ! use PHPUnit_Extensions_Database_DataSet_QueryDataSet; ! ! class ProductDbTest extends PHPUnit_Extensions_Database_TestCase ! { ! protected $_pdo; ! protected $_pdo; ! ! ! public function __construct() ! { ! public function __construct() ! $this-_pdo = new PDO('sqlite::memory:'); ! { ! $this-_pdo-exec(! $this-_pdo = new PDO('sqlite::memory:'); ! file_get_contents(dirname(__DIR__) . ‘/../../data/schema.sqlite.sql')! $this-_pdo-exec(! ); ! } ! file_get_contents(dirname(__DIR__) . ‘/../../data/schema.sqlite.sql')! ! ); ! final public function getConnection() ! } { ! return $this-createDefaultDBConnection($this-_pdo, 'sqlite'); ! } ! ! protected function getDataSet() ! { ! return $this-createFlatXMLDataSet(dirname(__DIR__) . '/_files/initialDataSet.xml'); ! } ! } 40
- 51. Hello DBUnit ?php ! namespace UtexamplesModel; ! ! use PHPUnit_Extensions_Database_DataSet_IDataSet; ! use PHPUnit_Extensions_Database_DB_IDatabaseConnection; ! use PHPUnit_Extensions_Database_DataSet_QueryDataSet; ! ! class ProductDbTest extends PHPUnit_Extensions_Database_TestCase ! { ! protected $_pdo; ! ! public function __construct() ! { ! $this-_pdo = new PDO('sqlite::memory:'); ! $this-_pdo-exec(! file_get_contents(dirname(__DIR__) . ‘/../../data/schema.sqlite.sql')! ); ! final public function getConnection() ! } ! { ! ! return $this-createDefaultDBConnection($this-_pdo, 'sqlite'); ! final public function getConnection() ! { ! } return $this-createDefaultDBConnection($this-_pdo, 'sqlite'); ! } ! ! protected function getDataSet() ! { ! return $this-createFlatXMLDataSet(dirname(__DIR__) . '/_files/initialDataSet.xml'); ! } ! } 40
- 52. Hello DBUnit ?php ! namespace UtexamplesModel; ! ! use PHPUnit_Extensions_Database_DataSet_IDataSet; ! use PHPUnit_Extensions_Database_DB_IDatabaseConnection; ! use PHPUnit_Extensions_Database_DataSet_QueryDataSet; ! ! class ProductDbTest extends PHPUnit_Extensions_Database_TestCase ! { ! protected $_pdo; ! ! public function __construct() ! { ! $this-_pdo = new PDO('sqlite::memory:'); ! $this-_pdo-exec(! file_get_contents(dirname(__DIR__) . ‘/../../data/schema.sqlite.sql')! ); ! } ! ! final public function getConnection() ! { ! protected function getDataSet() ! return $this-createDefaultDBConnection($this-_pdo, 'sqlite'); ! { ! } ! return $this-createFlatXMLDataSet(! ! dirname(__DIR__) . ‘/_files/initialDataSet.xml'! protected function getDataSet() ! {); ! ! return $this-createFlatXMLDataSet(dirname(__DIR__) . '/_files/initialDataSet.xml'); ! } } ! } 40
- 53. Hello DBUnit ?php ! namespace UtexamplesModel; ! ! use PHPUnit_Extensions_Database_DataSet_IDataSet; ! use PHPUnit_Extensions_Database_DB_IDatabaseConnection; ! use PHPUnit_Extensions_Database_DataSet_QueryDataSet; ! ! class ProductDbTest extends PHPUnit_Extensions_Database_TestCase ! { ! protected $_pdo; ! ! public function __construct() ! { ! $this-_pdo = new PDO('sqlite::memory:'); ! $this-_pdo-exec(! file_get_contents(dirname(__DIR__) . ‘/../../data/schema.sqlite.sql')! ); ! } ! ! final public function getConnection() ! { ! protected function getDataSet() ! return $this-createDefaultDBConnection($this-_pdo, 'sqlite'); ! { ! } ! return $this-createFlatXMLDataSet(! ! dirname(__DIR__) . ‘/_files/initialDataSet.xml'! protected function getDataSet() ! {); ! ! return $this-createFlatXMLDataSet(dirname(__DIR__) . '/_files/initialDataSet.xml'); ! } } ! } 40
- 54. Ini6alDataset ?xml version=1.0 encoding=UTF-8? dataset product productId=1 code=TEST CODE1 title=First test product description=This is our first test product image=http://www.example.com/image/image.png price=150.95 created=2013-03-30 10:11:12 modified=2013-12-11 09:08:07/ product productId=2 code=TEST CODE2 title=Second test product description=This is our second test product image=http://www.example.com/image/image.png price=19999.00 created=2013-03-30 10:11:12 modified=2013-12-11 09:08:07/ product productId=3 code=TEST CODE3 title=Third test product description=This is our third test product image=http://www.example.com/image/image.png price=0.45 created=2013-03-30 10:11:12 modified=2013-12-11 09:08:07/ /dataset 41
- 55. First DB Test public function testProductsCanBeLoadedFromDatabase() ! { ! $currentDataset = $this-getDataSet(); ! ! $expectedDataset = $this-createFlatXmlDataSet( ! dirname(__DIR__) . '/_files/selectDataSet.xml' ! ); ! ! $this-assertDataSetsEqual($expectedDataset, $currentDataset); ! } 42
- 56. Adding Data Test public function testProductAddToDatabase() ! { ! $data = array ( ! 'code' = 'TST', ! 'title' = 'Test', ! 'description' = 'Testing Test', ! 'image' = 'http://www.example.com/image.png', ! 'price' = 10.00, ! 'created' = '2013-12-15 01:55:00', ! 'modified' = '2013-12-20 16:00:00', ! ); ! ! $product = new Product($data); ! $product-setPdo($this-_pdo); ! $product-save(); ! ! $expectedDs = $this-createFlatXMLDataSet( ! dirname(__DIR__) . '/_files/addProductDataSet.xml' ! ); ! $currentDs = $this-getConnection()-createDataSet(array ('product')); ! $this-assertDataSetsEqual($expectedDs, $currentDs); ! } 43
- 57. addProductDataSet.xml ?xml version=1.0 encoding=UTF-8? dataset ... product productId=4 code=TEST title=Test description=Testing Test image=http://www.example.com/image.png price=10.0 created=2013-12-15 01:55:00 modified=2013-12-20 16:00:00”/ /dataset 44
- 58. Running our DBUnit test 45
- 59. Running our DBUnit test 45
- 60. Oops 46
- 61. Oops 46
- 62. Oops 46
- 63. Oh no, I made a TYPO! 47
- 64. addProductDataSet.xml ?xml version=1.0 encoding=UTF-8? dataset ... product productId=4 code=TST title=Test description=Testing Test image=http://www.example.com/image.png price=10.0 created=2013-12-15 01:55:00 $data = array ( ! modified=2013-12-20 16:00:00”/ 'code' = 'TST', ! /dataset 'title' = 'Test', ! 'description' = 'Testing Test', ! 'image' = 'http://www.example.com/image.png', ! 'price' = 10.00, ! 'created' = '2013-12-15 01:55:00', ! 'modified' = '2013-12-20 16:00:00', ! ); 48
- 65. Running our DBUnit test 49
- 66. Running our DBUnit test 49
- 68. Some downsides • Tes6ng databases takes 6me -‐ -‐ -‐ -‐ -‐ create a real database connec6on reini6alise the database (load schema, truncate tables) load ini6al state before test (with each test) execute on the database compare expected result with actual result 51
- 69. We can do beQer! 52
- 70. Mock objects • They replace an object for tes6ng -‐ -‐ a class with all methods a class with a single method -‐ -‐ -‐ databases web services file systems -‐ once you got everything set up • Since they replace “expansive” connec6ons • Are quicker and more reliable to test 53
- 71. Same tests, but now mocked ?php ! ! namespace UtexamplesModel; ! ! use PDO; ! use PDOStatement; ! ! class ProductMockTest extends PHPUnit_Framework_TestCase ! { ! public function testProductsCanBeLoadedFromDatabase() ! { ! ! } ! ! public function testProductAddToDatabase() ! { ! ! } ! } 54
- 72. testProductsCanBeLoadedFromDatabase public function testProductsCanBeLoadedFromDatabase() ! { ! $data = array (); ! // let's mock the prepare statement ! $pdostmt = $this-getMock('PDOStatement', array ('execute', 'fetchAll')); ! $pdostmt-expects($this-atLeastOnce()) ! -method('execute') ! -will($this-returnValue(true)); ! $pdostmt-expects($this-atLeastOnce()) ! -method('fetchAll') ! -will($this-returnValue($data)); ! // let's mock the PDO object and return the mocked statement ! $pdo = $this-getMock('PDO', array ('prepare'), array ('sqlite::memory')); ! $pdo-expects($this-atLeastOnce()) ! -method('prepare') ! -will($this-returnValue($pdostmt)); ! ! $productCollection = new ProductCollection(); ! $productCollection-setPdo($pdo); ! $productCollection-fetchAll(); ! ! $this-assertEquals($data, $productCollection-toArray()); ! } 55
- 73. My $data array $data = array ( ! array ( ! 'productId' = 1, ! 'code' = 'TST1', ! 'title' = 'Test 1', ! 'description' = 'Testing product 1', ! 'image' = 'http://www.example.com/image1.png', ! 'price' = 10.00, ! 'created' = '2013-12-01 01:55:00', ! 'modified' = '2013-12-20 16:00:00', ! ), ! array ( ! 'productId' = 2, ! 'code' = 'TST2', ! 'title' = 'Test 2', ! 'description' = 'Testing product 2', ! 'image' = 'http://www.example.com/image2.png', ! 'price' = 199.95, ! 'created' = '2013-12-02 02:55:00', ! 'modified' = '2013-12-20 16:00:00', ! ), ! ); 56
- 74. testProductAddToDatabase public function testProductAddToDatabase() ! { ! $pdostmt = $this-getMock('PDOStatement', array ('execute')); ! $pdostmt-expects($this-atLeastOnce()) ! -method('execute') ! -will($this-returnValue(true));! $pdo = $this-getMock('PDO', array ('prepare'), array ('sqlite::memory')); ! $pdo-expects($this-once()) ! -method('prepare') ! -will($this-returnValue($pdostmt)); ! ! $data = array ( ! 'code' = 'TST', ! 'title' = 'Test', ! 'description' = 'Testing Test', ! 'image' = 'http://www.example.com/image.png', ! 'price' = 10.00, ! 'created' = '2013-12-15 01:55:00', ! 'modified' = '2013-12-20 16:00:00', ! ); ! $product = new Product($data); ! $product-setPdo($pdo); ! $product-save(); ! ! // The model has mentioning of productId ! $data['productId'] = null; ! $this-assertEquals($data, $product-toArray()); ! } 57
- 77. Why the extra work? • Your databases are fully tested, no need to do it yourself again • The connec6ons are expensive and delay your tests • Your tes6ng code that needs to handle the data it gets, no maQer where it gets it 59
- 78. Web Services 60
- 80. Joindin Case: talks.feryn.eu Fork it: hQps://github.com/ThijsFeryn/talks.feryn.eu 62
- 81. API Docs are your friend 63
- 82. Joindin Test ?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; ! } ! } 64
- 83. Joindin Test (2) public function testJoindinCanGetUserDetails() ! { ! $expected = '?xml version=1.0?responseitemusernameDragonBe/ usernamefull_nameMichelangelo van Dam/full_nameID19/IDlast_login1303248639/ 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?responsedt' . $date-format('r') . '/ dttest_stringtesting unit test/test_string/response'; ! $actual = $this-_joindin-site()-getStatus('testing unit test'); ! $this-assertXmlStringEqualsXmlString($expected, $actual); ! } 65
- 86. Euh… what just happened? 1) Zftest_Service_JoindinTest::testJoindinCanGetUserDetails Failed asserting that two strings are equal. --- Expected +++ Actual @@ @@ ID19/ID last_login1303248639/last_login + last_login1303250271/last_login /item /response 67
- 87. And this? 2) Zftest_Service_JoindinTest::testJoindinCanCheckStatus Failed asserting that two strings are equal. --- Expected +++ Actual @@ @@ ?xml version=1.0? response - dtTue, 19 Apr 2011 22:26:40 +0000/dt + dtTue, 19 Apr 2011 22:26:41 +0000/dt test_stringtesting unit test/test_string /response 68
- 88. No dispair, we help you out! 69
- 89. Let’s mock the HTTP client ?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; ! } ! } 70
- 90. Let’s mock the HTTP client ?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()); $client-setAdapter(new Zend_Http_Client_Adapter_Test()); ! $this-_joindin-setClient($client); ! $this-_joindin-setClient($client); ! $settings = simplexml_load_file(realpath( ! $settings = simplexml_load_file(realpath( ! APPLICATION_PATH . '/../tests/_files/settings.xml')); ! APPLICATION_PATH . '/../tests/_files/settings.xml')); $this-_settings = $settings-joindin; ! parent::setUp(); ! } ! protected function tearDown() ! { ! parent::tearDown(); ! $this-_joindin = null; ! } ! } ! 70
- 91. Mocking the response public function testJoindinCanGetUserDetails() ! { ! $response = EOS ! HTTP/1.1 200 OK ! Content-type: text/xml ! ! ?xml version=1.0? ! response ! item ! usernameDragonBe/username ! full_nameMichelangelo van Dam/full_name ! ID19/ID ! last_login1303248639/last_login ! /item ! /response ! EOS; ! $client = $this-_joindin-getClient()-getAdapter()-setResponse($response); ! $expected = '?xml version=1.0?responseitemusernameDragonBe/ usernamefull_nameMichelangelo van Dam/full_nameID19/IDlast_login1303248639/ last_login/item/response'; ! $this-_joindin-setUsername($this-_settings-username) ! -setPassword($this-_settings-password); ! $actual = $this-_joindin-user()-getDetail(); ! $this-assertXmlStringEqualsXmlString($expected, $actual); ! } 71
- 92. Mocking the response public function testJoindinCanGetUserDetails() ! { ! $response = EOS ! HTTP/1.1 200 OK ! Content-type: text/xml ! ! ?xml version=1.0? ! response ! item ! usernameDragonBe/username ! full_nameMichelangelo van Dam/full_name ! ID19/ID ! last_login1303248639/last_login ! /item ! /response ! EOS; ! $client = $this-_joindin-getClient()-getAdapter()-setResponse($response); $client = $this-_joindin-getClient()-getAdapter()-setResponse($response); ! $expected = '?xml version=1.0?responseitemusernameDragonBe/ usernamefull_nameMichelangelo van Dam/full_nameID19/IDlast_login1303248639/ last_login/item/response'; ! $this-_joindin-setUsername($this-_settings-username) ! -setPassword($this-_settings-password); ! $actual = $this-_joindin-user()-getDetail(); ! $this-assertXmlStringEqualsXmlString($expected, $actual); ! } 71
- 93. Same here 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_stringtesting unit test/test_string ! /response ! EOS; ! ! $client = $this-_joindin-getClient() ! -getAdapter()-setResponse($response);! ! $expected = '?xml version=1.0?responsedt' . $date-format('r') . '/ dttest_stringtesting unit test/test_string/response'; ! $actual = $this-_joindin-site()-getStatus('testing unit test'); ! $this-assertXmlStringEqualsXmlString($expected, $actual); ! } 72
- 94. Same here 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_stringtesting unit test/test_string ! /response ! EOS; ! ! $client = $this-_joindin-getClient() ! $client = $this-_joindin-getClient() ! -getAdapter()-setResponse($response); -getAdapter()-setResponse($response);! ! $expected = '?xml version=1.0?responsedt' . $date-format('r') . '/ dttest_stringtesting unit test/test_string/response'; ! $actual = $this-_joindin-site()-getStatus('testing unit test'); ! $this-assertXmlStringEqualsXmlString($expected, $actual); ! } 72
- 97. Conclusion 74
- 99. Even for spaghen code 76
- 100. Posi6ve Nega6ve tests 77
- 101. Doing it more, makes you beQer 78
- 102. Recommended reading Click on the images to view www.owasp.org planet.phpunit.de 79
- 103. #PHPBNL14 January 25 - 26, 2014 phpcon.eu 80
- 104. https://joind.in/10113 If you liked it, thank you! If not, tell me how to improve this talk 81
- 105. Michelangelo van Dam Zend Certified Engineer ! michelangelo@in2it.be PHP Consulting - QA audits - Training ! www.in2it.be 82
- 106. Credits • Me: hQp://www.flickr.com/photos/akrabat/8784318813 • CrashTest: hQp://www.flickr.com/photos/digi6zedchaos/3964206549 • Chris: hQp://www.flickr.com/photos/akrabat/8421560178 • Nike: hQp://www.flickr.com/photos/japokskee/4393860599 • Grads: hQp://www.flickr.com/photos/ajschwegler/525829339 • Econopoly: hQp://www.flickr.com/photos/danielbroche/2258988806 • Disaster: hQp://www.flickr.com/photos/eschipul/1484495808/ • Mountain: hQp://www.flickr.com/photos/jfdervin/2510535266 • Data Store: hQp://www.flickr.com/photos/comedynose/7048321621 • Protect: hQp://www.flickr.com/photos/boltowlue/5724934828 • Owl: hQp://www.flickr.com/photos/15016964@N02/9425608812 • Register: hQp://www.flickr.com/photos/taedc/5466788868 • Crying Baby: hQp://www.flickr.com/photos/bibbit/5456802728 • Smiling Donkey: hQp://www.flickr.com/photos/smkybear/2239030703 • Jump high: hQp://www.flickr.com/photos/96748294@N06/9356699040 • Chipmunk: hQp://www.flickr.com/photos/exfordy/1184487050 • Easy: hQp://www.flickr.com/photos/dalismustaches/223972376 • Spaghen: hQp://www.flickr.com/photos/lablasco/5512066970 • BaQery: hQp://www.flickr.com/photos/shalf/6088539194 • Elephpant: hQp://www.flickr.com/photos/dragonbe/11403208686 83
- 107. Thank you 84