UninstallKernelTest.php

<?php

namespace Drupal\Tests\system\Kernel\Installer;

use Drupal\KernelTests\KernelTestBase;
use Drupal\module_test\PluginManagerCacheClearer;

/**
 * Tests the uninstallation of modules.
 *
 * @group Module
 */
class UninstallKernelTest extends KernelTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'system',
        'user',
        'field',
        'file',
        'image',
        'media',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->installSchema('user', [
            'users_data',
        ]);
        $this->installEntitySchema('media');
        $this->installEntitySchema('file');
        $this->installConfig([
            'media',
        ]);
    }
    
    /**
     * Tests uninstalling media and file modules.
     */
    public function testUninstallMedia() {
        // Media creates a file field that is removed on uninstall, ensure that it
        // is fully deleted (as it is empty) and that file then can be uninstalled
        // as well.
        \Drupal::service('module_installer')->uninstall([
            'media',
        ]);
        \Drupal::service('module_installer')->uninstall([
            'file',
        ]);
    }
    
    /**
     * Tests uninstalling a module with a plugin cache clearer service.
     */
    public function testUninstallPluginCacheClear() {
        \Drupal::service('module_installer')->install([
            'module_test',
        ]);
        $this->assertFalse($this->container
            ->get('state')
            ->get(PluginManagerCacheClearer::class));
        \Drupal::service('module_installer')->install([
            'dblog',
        ]);
        $this->assertTrue($this->container
            ->get('state')
            ->get(PluginManagerCacheClearer::class));
        // The plugin cache clearer service should be called during dblog uninstall
        // without the dependency.
        \Drupal::service('module_installer')->uninstall([
            'dblog',
        ]);
        $this->assertFalse($this->container
            ->get('state')
            ->get(PluginManagerCacheClearer::class));
        // The service should not be called during module_test uninstall.
        $this->container
            ->get('state')
            ->delete(PluginManagerCacheClearer::class);
        \Drupal::service('module_installer')->uninstall([
            'module_test',
        ]);
        $this->assertNull($this->container
            ->get('state')
            ->get(PluginManagerCacheClearer::class));
    }

}