PHP spec - array of specific types

Question

In phpspec how would a spec look that tested that a class property contained an array of specific types?

for example:

class MyClass
{
   private $_mySpecialTypes = array();

   // Constructor ommitted which sets the mySpecialTypes value

   public function getMySpecialTypes()
   {
      return $this->_mySpecialTypes;
   }
}

My spec looks like this:

public function it_should_have_an_array_of_myspecialtypes()
{
    $this->getMySpecialTypes()->shouldBeArray();
}

But i want to make sure that each element in the array is of type MySpecialType

Whats the best way to do this in phpspec?

Answer 1

You can use an inline matcher:

namespace spec;

use PhpSpec\ObjectBehavior;
use Prophecy\Argument;

use MySpecialType;

class MyArraySpec extends ObjectBehavior
{
    function it_should_have_an_array_of_myspecialtypes()
    {
        $this->getMySpecialTypes()->shouldReturnArrayOfSpecialTypes();
    }

    function getMatchers()
    {
        return array(
            'returnArrayOfSpecialTypes' => function($mySpecialTypes) {
                foreach ($mySpecialTypes as $element) {
                    if (!$element instanceof MySpecialType) {
                        return false;
                    }
                }
                return true;
            }
        );
    }
}