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<?php declare(strict_types=1);
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PHPUnit\Framework\Constraint;
use function gettype;
use function is_array;
use function is_bool;
use function is_callable;
use function is_float;
use function is_int;
use function is_iterable;
use function is_numeric;
use function is_object;
use function is_scalar;
use function is_string;
use function sprintf;
/**
* @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
*/
final class IsType extends Constraint
{
/**
* @var string
*/
public const TYPE_ARRAY = 'array';
/**
* @var string
*/
public const TYPE_BOOL = 'bool';
/**
* @var string
*/
public const TYPE_FLOAT = 'float';
/**
* @var string
*/
public const TYPE_INT = 'int';
/**
* @var string
*/
public const TYPE_NULL = 'null';
/**
* @var string
*/
public const TYPE_NUMERIC = 'numeric';
/**
* @var string
*/
public const TYPE_OBJECT = 'object';
/**
* @var string
*/
public const TYPE_RESOURCE = 'resource';
/**
* @var string
*/
public const TYPE_CLOSED_RESOURCE = 'resource (closed)';
/**
* @var string
*/
public const TYPE_STRING = 'string';
/**
* @var string
*/
public const TYPE_SCALAR = 'scalar';
/**
* @var string
*/
public const TYPE_CALLABLE = 'callable';
/**
* @var string
*/
public const TYPE_ITERABLE = 'iterable';
/**
* @var array<string,bool>
*/
private const KNOWN_TYPES = [
'array' => true,
'boolean' => true,
'bool' => true,
'double' => true,
'float' => true,
'integer' => true,
'int' => true,
'null' => true,
'numeric' => true,
'object' => true,
'real' => true,
'resource' => true,
'resource (closed)' => true,
'string' => true,
'scalar' => true,
'callable' => true,
'iterable' => true,
];
/**
* @var string
*/
private $type;
/**
* @throws \PHPUnit\Framework\Exception
*/
public function __construct(string $type)
{
if (!isset(self::KNOWN_TYPES[$type])) {
throw new \PHPUnit\Framework\Exception(
sprintf(
'Type specified for PHPUnit\Framework\Constraint\IsType <%s> ' .
'is not a valid type.',
$type
)
);
}
$this->type = $type;
}
/**
* Returns a string representation of the constraint.
*/
public function toString(): string
{
return sprintf(
'is of type "%s"',
$this->type
);
}
/**
* Evaluates the constraint for parameter $other. Returns true if the
* constraint is met, false otherwise.
*
* @param mixed $other value or object to evaluate
*/
protected function matches($other): bool
{
switch ($this->type) {
case 'numeric':
return is_numeric($other);
case 'integer':
case 'int':
return is_int($other);
case 'double':
case 'float':
case 'real':
return is_float($other);
case 'string':
return is_string($other);
case 'boolean':
case 'bool':
return is_bool($other);
case 'null':
return null === $other;
case 'array':
return is_array($other);
case 'object':
return is_object($other);
case 'resource':
$type = gettype($other);
return $type === 'resource' || $type === 'resource (closed)';
case 'resource (closed)':
return gettype($other) === 'resource (closed)';
case 'scalar':
return is_scalar($other);
case 'callable':
return is_callable($other);
case 'iterable':
return is_iterable($other);
default:
return false;
}
}
}