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<?php
namespace Illuminate\Foundation\Testing\Constraints;
use Symfony\Component\DomCrawler\Crawler;
class HasElement extends PageConstraint
{
/**
* The name or ID of the element.
*
* @var string
*/
protected $selector;
/**
* The attributes the element should have.
*
* @var array
*/
protected $attributes;
/**
* Create a new constraint instance.
*
* @param string $selector
* @param array $attributes
* @return void
*/
public function __construct($selector, array $attributes = [])
{
$this->selector = $selector;
$this->attributes = $attributes;
}
/**
* Check if the element is found in the given crawler.
*
* @param \Symfony\Component\DomCrawler\Crawler|string $crawler
* @return bool
*/
public function matches($crawler)
{
$elements = $this->crawler($crawler)->filter($this->selector);
if ($elements->count() == 0) {
return false;
}
if (empty($this->attributes)) {
return true;
}
$elements = $elements->reduce(function ($element) {
return $this->hasAttributes($element);
});
return $elements->count() > 0;
}
/**
* Determines if the given element has the attributes.
*
* @param \Symfony\Component\DomCrawler\Crawler $element
* @return bool
*/
protected function hasAttributes(Crawler $element)
{
foreach ($this->attributes as $name => $value) {
if (is_numeric($name)) {
if ($element->attr($value) === null) {
return false;
}
} else {
if ($element->attr($name) != $value) {
return false;
}
}
}
return true;
}
/**
* Returns a string representation of the object.
*
* @return string
*/
public function toString()
{
$message = "the element [{$this->selector}]";
if (! empty($this->attributes)) {
$message .= ' with the attributes '.json_encode($this->attributes);
}
return $message;
}
}