PHPUnit and methods that manipulate objects

April 27, 201214 yr

I am experimenting with NetBeans and PHPUnit but I can't find examples with PHP class methods that work with objects. For example I have two PHP classes:


<?php

class A
{
   public function __construct($value)
   {
       if(is_int($value))
       {
           $this->value = $value;
       }
       else 
       {
           throw new InvalidArgumentException('Value not an int.');
       }
   }

   public $value;
}

class B
{
   public function __construct(A $object1, A $object2)
   {
       {
           $this->object1 = $object1;
           $this->object2 = $object2;
       }
   }

   public function getNewObject()
   {
       return new A($this->object1->value + $this->object2->value);
   }

   private $object1;
   private $object2;
}

?>

I want to test if B::getNewObject() returns an instance of A and if that instance is the same as a previously created A instance. I added some code to the created test class stub. This is what I have so far:


<?php

require_once dirname(__FILE__) . '/../../Classes/TestClass.php';

/**
* Test class for B.
* Generated by PHPUnit on 2012-04-27 at 18:21:57.
*/
class BTest extends PHPUnit_Framework_TestCase
{

   /**
    * @var B
    */
   protected $object;

   /**
    * Sets up the fixture, for example, opens a network connection.
    * This method is called before a test is executed.
    */
   protected function setUp()
   {
       $A1 = new A(1);
       $A2 = new A(2);        

       $this->object = new B($A1, $A2);
   }

   /**
    * Tears down the fixture, for example, closes a network connection.
    * This method is called after a test is executed.
    */
   protected function tearDown()
   {

   }

   /**
    * @covers B::getNewObject
    * @todo Implement testGetNewObject().
    */
   public function testGetNewObject()
   {
       $expected = new A(3);
       $actual = $this->object->getNewObject();

       $this->assertInstanceOf(get_class($expected), $actual);
       $this->assertEquals($expected, $actual);
   }

}

?>

Both asserts pass, but I am not sure if I got things right. Any available examples online that I can study?