vendor/symfony/form/Symfony/Component/Form/Tests/Extension/Core/DataTransformer/ChoiceToValueTransformerTest.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Component\Form\Tests\Extension\Core\DataTransformer;
  13
  14 use Symfony\Component\Form\Extension\Core\ChoiceList\SimpleChoiceList;
  15 use Symfony\Component\Form\Extension\Core\DataTransformer\ChoiceToValueTransformer;
  16
  17 class ChoiceToValueTransformerTest extends \PHPUnit_Framework_TestCase
  18 {
  19     protected $transformer;
  20
  21     protected function setUp()
  22     {
  23         $list = new SimpleChoiceList(array('' => 'A', 0 => 'B', 1 => 'C'));
  24         $this->transformer = new ChoiceToValueTransformer($list);
  25     }
  26
  27     protected function tearDown()
  28     {
  29         $this->transformer = null;
  30     }
  31
  32     public function transformProvider()
  33     {
  34         return array(
  35             // more extensive test set can be found in FormUtilTest
  36             array(0, '0'),
  37             array(false, '0'),
  38             array('', ''),
  39         );
  40     }
  41
  42     /**
  43      * @dataProvider transformProvider
  44      */
  45     public function testTransform($in, $out)
  46     {
  47         $this->assertSame($out, $this->transformer->transform($in));
  48     }
  49
  50     public function reverseTransformProvider()
  51     {
  52         return array(
  53             // values are expected to be valid choice keys already and stay
  54             // the same
  55             array('0', 0),
  56             array('', null),
  57             array(null, null),
  58         );
  59     }
  60
  61     /**
  62      * @dataProvider reverseTransformProvider
  63      */
  64     public function testReverseTransform($in, $out)
  65     {
  66         $this->assertSame($out, $this->transformer->reverseTransform($in));
  67     }
  68
  69     /**
  70      * @expectedException \Symfony\Component\Form\Exception\TransformationFailedException
  71      */
  72     public function testReverseTransformExpectsScalar()
  73     {
  74         $this->transformer->reverseTransform(array());
  75     }
  76 }