/**
* @expectedException InvalidArgumentException
*/
public function testValidators()
{
$element = new Element('test');
$element->addValidator('\\Zend\\Validator\\NotEmpty');
$validator = $element->getValidator(Validator::getValidatorInstance('Zend\\Validator\\NotEmpty'));
$this->assertInstanceOf('\\Zend\\Validator\\NotEmpty', $validator);
$this->assertTrue($element->hasValidator($validator));
$this->assertEquals(array(Validator::getValidatorInstance('Zend\\Validator\\NotEmpty')), $element->getValidators());
$this->assertEquals(array(Validator::getValidatorInstance('Zend\\Validator\\NotEmpty')), $element->getValidator());
$this->assertNull($element->getValidator('unknown'));
$validator = Validator::getValidatorInstance('Zend\\Validator\\StringLength', array('max' => 128));
$this->assertInstanceOf('\\Zend\\Validator\\StringLength', $validator);
$element->addValidator($validator);
$this->assertTrue($element->hasValidator($validator));
$element = new Element('test');
$validatorInstance = Validator::getValidatorInstance('Zend\\Validator\\StringLength', array('max' => 128));
$validator = array('Zend\\Validator\\StringLength', array('max' => 128));
$element->addValidator($validator);
$this->assertTrue($element->hasValidator($validatorInstance));
$element = new Element('test');
$validatorInstance = Validator::getValidatorInstance('Zend\\Validator\\StringLength', array('max' => 128));
$validator = array('type' => 'Zend\\Validator\\StringLength', 'params' => array('max' => 128));
$element->addValidator($validator);
$this->assertTrue($element->hasValidator($validatorInstance));
$element = new Element('test');
$validator = array('type' => 'Zend\\Validator\\StringLength', 'params' => array('max' => 128));
$element->addValidator($validator);
$this->assertFalse($element->hasValidator('Unknown'));
$element->addValidator($validator);
$element->addValidator(new \stdClass());
}