Ejercicio PHP: factores primos

primos.php

<?php

require_once 'primos.php';

class PrimosTest extends PHPUnit_Framework_TestCase
{

    function test_create_class() {
        $a = new Primos();
        $this->assertTrue(is_a($a, 'Primos'));
    }
    // ...

	/**
     * @dataProvider factoresProvider
     */
    public function testFactores($n, $esperados) {
   	   $p = new Primos();
       $this->assertEquals($esperados, $p->factores($n));
    }

    public function factoresProvider()
    {
        return array(
          array(1, [1]),
          array(2, [1,2]),
          array(3, [1,3]),
          array(4, [1,2,2]),
          array(5, [1,5]),
          array(6, [1,2,3]),
          array(24, [1,2,2,2,3]),
          array(25, [1,5,5]),
        );
    }

}