Constraint that checks if one value is equal to another.
Equality is checked with PHP's == operator, the operator is explained in detail at {@url http://www.php.net/manual/en/types.comparisons.php}. Two values are equal if they have the same value disregarding type.
The expected value is passed in the constructor.
@package PHPUnit @subpackage Framework_Constraint @author Kore Nordmann <kn@ez.no> @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 3.0.0
Expanded class hierarchy of PHPUnit_Framework_Constraint_IsEqual
class PHPUnit_Framework_Constraint_IsEqual extends PHPUnit_Framework_Constraint {
/**
* @var mixed
*/
protected $value;
/**
* @var float
*/
protected $delta = 0;
/**
* @var integer
*/
protected $maxDepth = 10;
/**
* @var boolean
*/
protected $canonicalize = FALSE;
/**
* @var boolean
*/
protected $ignoreCase = FALSE;
/**
* @var PHPUnit_Framework_ComparisonFailure
*/
protected $lastFailure;
/**
* @param mixed $value
* @param float $delta
* @param integer $maxDepth
* @param boolean $canonicalize
* @param boolean $ignoreCase
*/
public function __construct($value, $delta = 0, $maxDepth = 10, $canonicalize = FALSE, $ignoreCase = FALSE) {
if (!is_numeric($delta)) {
throw PHPUnit_Util_InvalidArgumentHelper::factory(2, 'numeric');
}
if (!is_int($maxDepth)) {
throw PHPUnit_Util_InvalidArgumentHelper::factory(3, 'integer');
}
if (!is_bool($canonicalize)) {
throw PHPUnit_Util_InvalidArgumentHelper::factory(4, 'boolean');
}
if (!is_bool($ignoreCase)) {
throw PHPUnit_Util_InvalidArgumentHelper::factory(5, 'boolean');
}
$this->value = $value;
$this->delta = $delta;
$this->maxDepth = $maxDepth;
$this->canonicalize = $canonicalize;
$this->ignoreCase = $ignoreCase;
}
/**
* 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) {
$comparatorFactory = PHPUnit_Framework_ComparatorFactory::getDefaultInstance();
try {
$comparator = $comparatorFactory
->getComparatorFor($other, $this->value);
$comparator
->assertEquals($this->value, $other, $this->delta, $this->canonicalize, $this->ignoreCase);
} catch (PHPUnit_Framework_ComparisonFailure $f) {
if ($returnResult) {
return FALSE;
}
throw new PHPUnit_Framework_ExpectationFailedException(trim($description . "\n" . $f
->getMessage()), $f);
}
return TRUE;
}
/**
* Returns a string representation of the constraint.
*
* @return string
*/
public function toString() {
$delta = '';
if (is_string($this->value)) {
if (strpos($this->value, "\n") !== FALSE) {
return 'is equal to <text>';
}
else {
return sprintf('is equal to <string:%s>', $this->value);
}
}
else {
if ($this->delta != 0) {
$delta = sprintf(' with delta <%F>', $this->delta);
}
return sprintf('is equal to %s%s', PHPUnit_Util_Type::export($this->value), $delta);
}
}
}