UpdateStorageTest.php

<?php

namespace Drupal\Tests\update\Kernel;

use Drupal\KernelTests\KernelTestBase;

/**
 * Tests the Update module storage is cleared correctly.
 *
 * @group update
 */
class UpdateStorageTest extends KernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'update',
    ];
    
    /**
     * Tests the Update module storage is cleared correctly.
     */
    public function testUpdateStorage() {
        // Setting values in both key stores, then installing the module and
        // testing if these key values are cleared.
        $keyvalue_update = $this->container
            ->get('keyvalue.expirable')
            ->get('update');
        $keyvalue_update->set('key', 'some value');
        $keyvalue_update_available_release = $this->container
            ->get('keyvalue.expirable')
            ->get('update_available_release');
        $keyvalue_update_available_release->set('key', 'some value');
        $this->container
            ->get('module_installer')
            ->install([
            'help',
        ]);
        $this->assertNull($keyvalue_update->get('key'));
        $this->assertNull($keyvalue_update_available_release->get('key'));
        // Setting new values in both key stores, then uninstalling the module and
        // testing if these new key values are cleared.
        $keyvalue_update->set('another_key', 'some value');
        $keyvalue_update_available_release->set('another_key', 'some value');
        $this->container
            ->get('module_installer')
            ->uninstall([
            'help',
        ]);
        $this->assertNull($keyvalue_update->get('another_key'));
        $this->assertNull($keyvalue_update_available_release->get('another_key'));
    }

}