symfony/tests/Symfony/Tests/Components/Validator/Constraints/CollectionValidatorTest.php

<?php

namespace Symfony\Tests\Components\Validator;

require_once __DIR__.'/../../../../../bootstrap.php';

use Symfony\Components\Validator\ValidationContext;
use Symfony\Components\Validator\Constraints\Min;
use Symfony\Components\Validator\Constraints\Collection;
use Symfony\Components\Validator\Constraints\CollectionValidator;

class CollectionValidatorTest extends \PHPUnit_Framework_TestCase
{
  protected $validator;
  protected $walker;
  protected $context;

  public function setUp()
  {
    $this->walker = $this->getMock('Symfony\Components\Validator\GraphWalker', array(), array(), '', false);
    $metadataFactory = $this->getMock('Symfony\Components\Validator\Mapping\ClassMetadataFactoryInterface');
    $messageInterpolator = $this->getMock('Symfony\Components\Validator\MessageInterpolator\MessageInterpolatorInterface');

    $this->context = new ValidationContext('Root', $this->walker, $metadataFactory, $messageInterpolator);

    $this->validator = new CollectionValidator();
    $this->validator->initialize($this->context);
  }

  public function testNullIsValid()
  {
    $this->assertTrue($this->validator->isValid(null, new Collection(array('fields' => array(
      'foo' => new Min(4),
    )))));
  }

  public function testThrowsExceptionIfNotTraversable()
  {
    $this->setExpectedException('Symfony\Components\Validator\Exception\UnexpectedTypeException');

    $this->validator->isValid('foobar', new Collection(array('fields' => array(
      'foo' => new Min(4),
    ))));
  }

  /**
   * @dataProvider getValidArguments
   */
  public function testWalkSingleConstraint($array)
  {
    $this->context->setGroup('MyGroup');
    $this->context->setPropertyPath('foo');

    $constraint = new Min(4);

    foreach ($array as $key => $value)
    {
      $this->walker->expects($this->once())
                   ->method('walkConstraint')
                   ->with($this->equalTo($constraint), $this->equalTo($value), $this->equalTo('MyGroup'), $this->equalTo('foo['.$key.']'));
    }

    $this->assertTrue($this->validator->isValid($array, new Collection(array(
      'fields' => array(
        'foo' => $constraint,
      ),
    ))));
  }

  /**
   * @dataProvider getValidArguments
   */
  public function testWalkMultipleConstraints($array)
  {
    $this->context->setGroup('MyGroup');
    $this->context->setPropertyPath('foo');

    $constraint = new Min(4);
    // can only test for twice the same constraint because PHPUnits mocking
    // can't test method calls with different arguments
    $constraints = array($constraint, $constraint);

    foreach ($array as $key => $value)
    {
      $this->walker->expects($this->exactly(2))
                   ->method('walkConstraint')
                   ->with($this->equalTo($constraint), $this->equalTo($value), $this->equalTo('MyGroup'), $this->equalTo('foo['.$key.']'));
    }

    $this->assertTrue($this->validator->isValid($array, new Collection(array(
      'fields' => array(
        'foo' => $constraints,
      )
    ))));
  }

  public function testExtraFieldsDisallowed()
  {
    $array = array(
      'foo' => 5,
      'bar' => 6,
    );

    $this->assertFalse($this->validator->isValid($array, new Collection(array(
      'fields' => array(
        'foo' => new Min(4),
      ),
    ))));
  }

  // bug fix
  public function testNullNotConsideredExtraField()
  {
    $array = array(
      'foo' => null,
    );

    $this->assertTrue($this->validator->isValid($array, new Collection(array(
      'fields' => array(
        'foo' => new Min(4),
      ),
    ))));
  }

  public function testExtraFieldsAllowed()
  {
    $array = array(
      'foo' => 5,
      'bar' => 6,
    );

    $this->assertTrue($this->validator->isValid($array, new Collection(array(
      'fields' => array(
        'foo' => new Min(4),
      ),
      'allowExtraFields' => true,
    ))));
  }

  public function testMissingFieldsDisallowed()
  {
    $this->assertFalse($this->validator->isValid(array(), new Collection(array(
      'fields' => array(
        'foo' => new Min(4),
      ),
    ))));
  }

  public function testMissingFieldsAllowed()
  {
    $this->assertTrue($this->validator->isValid(array(), new Collection(array(
      'fields' => array(
        'foo' => new Min(4),
      ),
      'allowMissingFields' => true,
    ))));
  }

  public function getValidArguments()
  {
    return array(
      // can only test for one entry, because PHPUnits mocking does not allow
      // to expect multiple method calls with different arguments
      array(array('foo' => 3)),
      array(new \ArrayObject(array('foo' => 3))),
    );
  }

  public function testObjectShouldBeLeftUnchanged()
  {
    $value = new \ArrayObject(array(
      'foo' => 3
    ));
    $this->validator->isValid($value, new Collection(array(
      'fields' => array(
        'foo' => new Min(2),
      )
    )));

    $this->assertEquals(array(
      'foo' => 3
    ), (array) $value);
  }
}