function AjaxFormCacheTest::testFormCacheUsage

Tests the usage of form cache for AJAX forms.

File

core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormCacheTest.php, line 30

Class

AjaxFormCacheTest

Tests the usage of form caching for AJAX forms.

Namespace

Code

public function testFormCacheUsage() : void {
    
    /** @var \Drupal\Core\KeyValueStore\KeyValueStoreExpirableInterface $key_value_expirable */
    $key_value_expirable = \Drupal::service('keyvalue.expirable')->get('form');
    $this->drupalLogin($this->rootUser);
    // Ensure that the cache is empty.
    $this->assertCount(0, $key_value_expirable->getAll());
    // Visit an AJAX form that is not cached, 3 times.
    $uncached_form_url = Url::fromRoute('ajax_forms_test.commands_form');
    $this->drupalGet($uncached_form_url);
    $this->drupalGet($uncached_form_url);
    $this->drupalGet($uncached_form_url);
    // The number of cache entries should not have changed.
    $this->assertCount(0, $key_value_expirable->getAll());
}