src/Constraint/JsonValueMatchesSchema.php
<?php
namespace Helmich\JsonAssert\Constraint;
use JsonSchema\Validator;
use PHPUnit\Framework\Constraint\Constraint;
use stdClass;
/**
* A constraint for asserting that a JSON document matches a schema
*
* @package Helmich\JsonAssert
* @subpackage Constraint
*/
class JsonValueMatchesSchema extends Constraint
{
/**
* @var array|stdClass
*/
private $schema;
/**
* JsonValueMatchesSchema constructor.
*
* @param array|stdClass $schema The JSON schema
*/
public function __construct($schema)
{
$this->schema = $this->forceToObject($schema);
}
/**
* VERY dirty hack to force a JSON document into an object.
*
* Yell if you can think of something better.
*
* @param array|stdClass $jsonDocument
* @return stdClass
*/
private function forceToObject($jsonDocument)
{
if (is_string($jsonDocument)) {
return json_decode($jsonDocument);
}
return json_decode(json_encode($jsonDocument));
}
/**
* @inheritdoc
*/
protected function matches($other): bool
{
$other = $this->forceToObject($other);
$validator = new Validator();
$validator->check($other, $this->schema);
return $validator->isValid();
}
/**
* @inheritdoc
*/
protected function additionalFailureDescription($other): string
{
$other = $this->forceToObject($other);
$validator = new Validator();
$validator->check($other, $this->schema);
return implode("\n", array_map(function ($error) {
return sprintf("[%s] %s", $error['property'], $error['message']);
}, $validator->getErrors()));
}
/**
* Returns a string representation of the object.
*
* @return string
*/
public function toString(): string
{
return 'matches JSON schema';
}
}