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<?php
namespace Drupal\Core\Test;
use Drupal\Core\Cache\Cache;
/**
* Provides a method to refresh in-memory configuration and state information.
*/
trait RefreshVariablesTrait {
/**
* Refreshes in-memory configuration and state information.
*
* Useful after a page request is made that changes configuration or state in
* a different thread.
*
* In other words calling a settings page with $this->submitForm() with a
* changed value would update configuration to reflect that change, but in the
* thread that made the call (thread running the test) the changed values
* would not be picked up.
*
* This method clears the cache and loads a fresh copy.
*/
protected function refreshVariables() {
// Clear the tag cache.
\Drupal::service('cache_tags.invalidator')->resetChecksums();
foreach (Cache::getBins() as $backend) {
if (is_callable([$backend, 'reset'])) {
$backend->reset();
}
}
foreach (Cache::getMemoryBins() as $backend) {
if (is_callable([$backend, 'reset'])) {
$backend->reset();
}
}
\Drupal::service('config.factory')->reset();
\Drupal::service('state')->reset();
\Drupal::service('entity.memory_cache')->deleteAll();
}
}
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