Initial Drupal 11 with DDEV setup

web/core/tests/Drupal/Tests/ConfigTestTrait.php

@@ -0,0 +1,62 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests;
+
+use Drupal\Core\Config\ConfigImporter;
+use Drupal\Core\Config\StorageComparer;
+use Drupal\Core\Config\StorageCopyTrait;
+use Drupal\Core\Config\StorageInterface;
+
+/**
+ * Provides helper methods to deal with config system objects in tests.
+ */
+trait ConfigTestTrait {
+
+  use StorageCopyTrait;
+
+  /**
+   * Returns a ConfigImporter object to import test configuration.
+   *
+   * @return \Drupal\Core\Config\ConfigImporter
+   *   The config importer object.
+   */
+  protected function configImporter() {
+    if (!$this->configImporter) {
+      // Set up the ConfigImporter object for testing.
+      $storage_comparer = new StorageComparer(
+        $this->container->get('config.storage.sync'),
+        $this->container->get('config.storage')
+      );
+      $this->configImporter = new ConfigImporter(
+        $storage_comparer,
+        $this->container->get('event_dispatcher'),
+        $this->container->get('config.manager'),
+        $this->container->get('lock'),
+        $this->container->get('config.typed'),
+        $this->container->get('module_handler'),
+        $this->container->get('module_installer'),
+        $this->container->get('theme_handler'),
+        $this->container->get('string_translation'),
+        $this->container->get('extension.list.module'),
+        $this->container->get('extension.list.theme')
+      );
+    }
+    // Always recalculate the changelist when called.
+    return $this->configImporter->reset();
+  }
+
+  /**
+   * Copies configuration objects from source storage to target storage.
+   *
+   * @param \Drupal\Core\Config\StorageInterface $source_storage
+   *   The source config storage service.
+   * @param \Drupal\Core\Config\StorageInterface $target_storage
+   *   The target config storage service.
+   */
+  protected function copyConfig(StorageInterface $source_storage, StorageInterface $target_storage) {
+    static::replaceStorageContents($source_storage, $target_storage);
+  }
+
+}