SfCon: Test Driven Development

Test Driven DevelopmentSaturday, June 23, 2012

@AUGUSTOHP @ALGANETSaturday, June 23, 2012

• Evolução dos testes AGENDA • Motivações • TDD (interativo)Saturday, June 23, 2012

EVOLUÇÃO DOS TESTESSaturday, June 23, 2012

var_dump($coisa);Saturday, June 23, 2012

//var_dump($coisa);Saturday, June 23, 2012

Breakpoints e Watchers!Saturday, June 23, 2012

Testes automatizadosSaturday, June 23, 2012

ão açautomatizados ﬁc Testes ri VeSaturday, June 23, 2012

Test Driven DevelopmentSaturday, June 23, 2012

MOTIVAÇÃOSaturday, June 23, 2012

CÓDIGO LIMPO QUE FUNCIONASaturday, June 23, 2012

Esse é o código CÓDIGO LIMPO QUE FUNCIONASaturday, June 23, 2012

Esse “somos nozes” CÓDIGO LIMPO QUE FUNCIONASaturday, June 23, 2012

Objetivo do TDD CÓDIGO LIMPO QUE FUNCIONASaturday, June 23, 2012

2 REGRASSaturday, June 23, 2012

CÓDIGO NOVO = TESTESaturday, June 23, 2012

REFATORESaturday, June 23, 2012

O MANTRA DO TDDSaturday, June 23, 2012

Saturday, June 23, 2012

• Vermelho : Escreva um teste (ele vai falhar)Saturday, June 23, 2012

• Vermelho : Escreva um teste (ele vai falhar) • Verde : Faça o teste funcionarSaturday, June 23, 2012

• Vermelho : Escreva um teste (ele vai falhar) • Verde : Faça o teste funcionar • RefatoreSaturday, June 23, 2012

SESSÃO INTERATIVA DE TDDSaturday, June 23, 2012

O que faremos?Saturday, June 23, 2012

• Lista de tarefasSaturday, June 23, 2012

• Lista de tarefas • TítuloSaturday, June 23, 2012

1 <?php 2 class TaskTest extends PHPUnit_Framework_TestCase 3 { 4 public function testTitle() 5 { 6 $task = new SfConTask; 7 $title = Teste; 8 $task->setTitle($title); 9 $this->assertEquals($title, $task->getTitle()); 10 $this->assertEquals($title, (string) $task); 11 } 12 }Saturday, June 23, 2012

1 PHPUnit 3.6.10 by Sebastian Bergmann. 2 3 4 Fatal error: Class SfConTask not found in /Users/augustopascutti/Desktop/tdd/TaskTest.php on line 6Saturday, June 23, 2012

1 <?php 2 namespace SfCon; 3 4 class Task 5 { 6 protected $title; 7 8 public function setTitle($string) 9 { 10 $this->title = $string; 11 return $this; 12 } 13 14 public function getTitle() 15 { 16 return $this->title; 17 } 18 19 public function __toString() 20 { 21 return (string) $this->getTitle(); 22 } 23 }Saturday, June 23, 2012

1 PHPUnit 3.6.10 by Sebastian Bergmann. 2 3 . 4 5 Time: 0 seconds, Memory: 2.75Mb 6 7 OK (1 test, 2 assertions)Saturday, June 23, 2012

• Lista de tarefas • Título • IDSaturday, June 23, 2012

1 <?php 2 require SfCon/Task.php; 4 class TaskTest extends PHPUnit_Framework_TestCase 5 { 6 // ... 7 public function testId() 8 { 9 $task = new SfConTask(); 10 $id = 1; 11 $task->setId($id); 12 $this->assertEquals($id, $task->getId()); 13 } 14 }Saturday, June 23, 2012

1 PHPUnit 3.6.10 by Sebastian Bergmann. 2 3 . 4 Fatal error: Call to undefined method SfConTask::setId() in /Users/augustopascutti/Desktop/tdd/TaskTest.php online 19Saturday, June 23, 2012

1 <?php 2 require SfCon/Task.php; 3 4 class TaskTest extends PHPUnit_Framework_TestCase 5 { 6 // ... 7 public function testId() 8 { 9 $task = new SfConTask(); 10 $id = 1; 11 $task->setId($id); 12 $this->assertEquals($id, $task->getId()); 13 } 14 }Saturday, June 23, 2012

• Lista de tarefas • Título • ID • Completa?Saturday, June 23, 2012

1 <?php 2 require SfCon/Task.php; 3 4 class TaskTest extends PHPUnit_Framework_TestCase 5 { 6 // ... 7 public function testDone() 8 { 9 $task = new SfConTask(); 10 $this->assertFalse($task->isDone()); 11 $task->setDone(); // Default: true 12 $this->assertTrue($task->isDone()); 13 $task->setDone(false); 14 $this->assertFalse($task->isDone()); 15 } 16 }Saturday, June 23, 2012

1 PHPUnit 3.6.10 by Sebastian Bergmann. 2 3 .. 4 Fatal error: Call to undefined method SfConTask::isDone() in /Users/augustopascutti/Desktop/tdd/TaskTest.php on line 26Saturday, June 23, 2012

1 <?php 2 namespace SfCon; 3 4 class Task 5 { 6 // ... 7 protected $done = false; 8 9 // ... 10 public function setDone($bool=true) 11 { 12 $this->done = (boolean) $bool; 13 return $this; 14 } 15 16 public function isDone() 17 { 18 return $this->done; 19 } 20 }Saturday, June 23, 2012

1 PHPUnit 3.6.10 by Sebastian Bergmann. 2 3 ... 4 5 Time: 0 seconds, Memory: 2.75Mb 6 7 OK (3 tests, 6 assertions)Saturday, June 23, 2012

• Lista de tarefas • Título • ID • Completa? • Salvar tarefaSaturday, June 23, 2012

1 <?php 2 require SfCon/Task.php; 3 4 class TaskTest extends PHPUnit_Framework_TestCase 5 { 6 // ... 7 public function testInsert() 8 { 9 $pdo = new Pdo(sqlite::memory:); 10 $pdo->exec(CREATE TABLE tasks ( 11 id INTEGER PRIMARY KEY, 12 title TEXT, 13 done INTEGER 14 )); 15 $task = new SfConTask($pdo); 16 $expectId = 1; 17 $task->setTitle(Test); 18 $task->insert(); // Insert defines ID 19 $this->assertEquals($expectId, $task->getId()); 20 } 21 }Saturday, June 23, 2012

1 <?php 2 namespace SfCon; 3 4 class Task 5 { 6 // ... 7 protected $pdo; 8 9 public function __construct(Pdo $pdo=null) 10 { 11 if (!is_null($pdo)) 12 $this->pdo = $pdo; 13 } 14 // ... 15 public function insert() 16 { 17 $sql = INSERT INTO tasks (id, title, done) VALUES (?, ?, ?); 18 $st = $this->pdo->prepare($sql); 19 $st->bindValue(1, $this->getId()); 20 $st->bindValue(2, $this->getTitle()); 21 $st->bindValue(3, $this->isDone()); 22 $result = $st->execute(); 23 $this->setId($this->pdo->lastInsertId()); 24 return $result; 25 } 26 }Saturday, June 23, 2012

1 PHPUnit 3.6.10 by Sebastian Bergmann. 2 3 .... 4 5 Time: 0 seconds, Memory: 2.75Mb 6 7 OK (4 tests, 9 assertions)Saturday, June 23, 2012

1 PHPUnit 3.6.10 by Sebastian Bergmann. 2 3 Task 4 [x] Title 5 [x] Id 6 [x] Done 7 [x] InsertSaturday, June 23, 2012

1 <?php 2 require SfCon/Task.php; 3 4 class TaskTest extends PHPUnit_Framework_TestCase 5 { 6 public function testSetterGetterForTitle() 7 { 8 // ... 9 } 10 11 public function testSetterGetterForId() 12 { 13 // ... 14 } 15 16 public function testSetterGetterForDone() 17 { 18 // ... 19 } 20 }Saturday, June 23, 2012

1 PHPUnit 3.6.10 by Sebastian Bergmann. 2 3 Task 4 [x] Setter getter for title 5 [x] Setter getter for id 6 [x] Setter getter for done 7 [x] InsertSaturday, June 23, 2012

• Lista de tarefas • Cobrir variações • Título • ID • Completa? • Salvar tarefaSaturday, June 23, 2012

1 <?php 2 require SfCon/Task.php; 3 4 class TaskTest extends PHPUnit_Framework_TestCase 5 { 6 // ... 7 public function provideValidTitles() 8 { 9 return array( 10 array(This is a valid title), 11 array(This is also a valid title ...), 12 array(Hello World), 13 array(Hakuna Matata), 14 array(Do some more tests) 15 ); 16 } 17 18 /** 19 * @dataProvider provideValidTitles 20 */ 21 public function testSetterGetterForTitle($title) 22 { 23 $this->fixture->setTitle($title); 24 $this->assertEquals($title, $this->fixture->getTitle()); 25 $this->assertEquals($title, (string) $this->fixture); 26 } 27 // ...Saturday, June 23, 2012

1 <?php 2 require SfCon/Task.php; 3 4 class TaskTest extends PHPUnit_Framework_TestCase 5 { 6 protected $fixture; 7 protected $pdo; 8 9 public function setUp() 10 { 11 $this->pdo = new Pdo(sqlite::memory:); 12 $this->fixture = new SfConTask($this->pdo); 13 $this->pdo->exec(CREATE TABLE IF NOT EXISTS tasks ( 14 id INTEGER PRIMARY KEY, 15 title TEXT, 16 done INTEGER 17 )); 18 } 19 20 public function tearDown() 21 { 22 $this->pdo->exec(DROP TABLE tasks); 23 } 24 // ... 25 }Saturday, June 23, 2012

1 PHPUnit 3.6.10 by Sebastian Bergmann. 2 3 .............. 4 5 Time: 0 seconds, Memory: 2.75Mb 6 7 OK (14 tests, 45 assertions)Saturday, June 23, 2012

CUIDADO COM O 100% DE COVERAGESaturday, June 23, 2012

Linhas não testadasSaturday, June 23, 2012

1 <?php 2 require SfCon/Task.php; 3 4 class TaskTest extends PHPUnit_Framework_TestCase 5 { 6 /** 7 * @dataProvider provideValidTitles 8 */ 9 public function testSetterGetterForTitle($title) 10 { 11 $instance = $task->setTitle($title); 12 $this->assertEquals($task, $instance); 13 $this->assertEquals($title, $task->getTitle()); 14 $this->assertEquals($title, (string) $task); 15 } 16 }Saturday, June 23, 2012

• Lista de tarefas • Cobrir variações • Título • Mocks / Stubs • ID • Completa? • Salvar tarefaSaturday, June 23, 2012

1 <?php 2 require SfCon/Task.php; 3 4 class TaskTest extends PHPUnit_Framework_TestCase 5 { 6 public function testInsert() 7 { 8 $con = array(sqlite::memory:); 9 $met = array(prepare, lastInsertId);10 // ...11 $this->pdo = $this->getMock(Pdo, $met, $con);12 $this->pdo->expects($this->once())13 ->method(prepare)14 ->with($this->equalTo(SfConTask::SQL_INSE15 ->will($this->returnValue($mockIns));16 }17 }Saturday, June 23, 2012

1 <?php 2 require SfCon/Task.php; 3 4 class TaskTest extends PHPUnit_Framework_TestCase 5 { 6 public function testInsert() 7 { 8 // ... 9 $met = array(bindValue, execute);10 $mockIns = $this->getMock(PdoStatement, $met);11 $mockIns->expects($this->exactly(3))12 ->method(bindValue)13 ->with($this->greaterThan(0),14 $this->anything());15 // ...16 }17 }Saturday, June 23, 2012

1 <?php 2 require SfCon/Task.php; 3 4 class TaskTest extends PHPUnit_Framework_TestCase 5 { 6 public function testInsert() 7 { 8 // ... 9 $mockIns->expects($this->once())10 ->method(execute)11 ->will($this->returnValue(true));12 // ...13 }14 }Saturday, June 23, 2012

1 <?php 2 require SfCon/Task.php; 3 4 class TaskTest extends PHPUnit_Framework_TestCase 5 { 6 public function testInsert() 7 { 8 // ... 9 $this->pdo->expects($this->once())10 ->method(lastInsertId)11 ->will($this->returnValue(1));1213 $task = new SfConTask($this->pdo);14 $task->setTitle($title);15 $task->insert();16 $this->assertEquals($expectId, $task->getId());17 }18 }Saturday, June 23, 2012

1 PHPUnit 3.6.10 by Sebastian Bergmann. 2 3 ............... 4 5 Time: 0 seconds, Memory: 3.25Mb 6 7 OK (15 tests, 45 assertions)Saturday, June 23, 2012

• Lista de tarefas • Cobrir variações • Título • Mocks / Stubs • ID • tas? Bugs regressivos u n • Completa? e rg • Salvar tarefa pSaturday, June 23, 2012

SfCon: Test Driven Development

by Augusto Pascutti on Jun 23, 2012

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SfCon: Test Driven Development Presentation Transcript