Constraint that asserts that the Traversable it is applied to contains only values of a given type.
@package PHPUnit @subpackage Framework_Constraint @author Sebastian Bergmann <sebastian@phpunit.de> @author Bernhard Schussek <bschussek@2bepublished.at> @copyright 2001-2013 Sebastian Bergmann <sebastian@phpunit.de> @license http://www.opensource.org/licenses/BSD-3-Clause The BSD 3-Clause License @link http://www.phpunit.de/ @since Class available since Release 3.1.4
Expanded class hierarchy of PHPUnit_Framework_Constraint_TraversableContainsOnly
class PHPUnit_Framework_Constraint_TraversableContainsOnly extends PHPUnit_Framework_Constraint {
/**
* @var PHPUnit_Framework_Constraint
*/
protected $constraint;
/**
* @var string
*/
protected $type;
/**
* @param string $type
* @param boolean $isNativeType
*/
public function __construct($type, $isNativeType = TRUE) {
if ($isNativeType) {
$this->constraint = new PHPUnit_Framework_Constraint_IsType($type);
}
else {
$this->constraint = new PHPUnit_Framework_Constraint_IsInstanceOf($type);
}
$this->type = $type;
}
/**
* Evaluates the constraint for parameter $other
*
* If $returnResult is set to FALSE (the default), an exception is thrown
* in case of a failure. NULL is returned otherwise.
*
* If $returnResult is TRUE, the result of the evaluation is returned as
* a boolean value instead: TRUE in case of success, FALSE in case of a
* failure.
*
* @param mixed $other Value or object to evaluate.
* @param string $description Additional information about the test
* @param bool $returnResult Whether to return a result or throw an exception
* @return mixed
* @throws PHPUnit_Framework_ExpectationFailedException
*/
public function evaluate($other, $description = '', $returnResult = FALSE) {
$success = TRUE;
$constraint = NULL;
foreach ($other as $item) {
if (!$this->constraint
->evaluate($item, '', TRUE)) {
$success = FALSE;
break;
}
}
if ($returnResult) {
return $success;
}
if (!$success) {
$this
->fail($other, $description);
}
}
/**
* Returns a string representation of the constraint.
*
* @return string
*/
public function toString() {
return 'contains only values of type "' . $this->type . '"';
}
}