Initial Drupal 11 with DDEV setup

web/core/tests/Drupal/TestSite/HtmxAssetLoadTestSetup.php

@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\TestSite;
+
+use Drupal\Core\Extension\ModuleInstallerInterface;
+use Drupal\Core\Extension\ThemeInstallerInterface;
+
+/**
+ * Setup file used by tests/src/Nightwatch/Tests/htmxAssetLoadTest.js.
+ *
+ * @see \Drupal\Tests\Scripts\TestSiteApplicationTest
+ */
+class HtmxAssetLoadTestSetup implements TestSetupInterface {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setup(): void {
+    // Install Olivero and set it as the default theme.
+    $theme_installer = \Drupal::service('theme_installer');
+    assert($theme_installer instanceof ThemeInstallerInterface);
+    $theme_installer->install(['olivero'], TRUE);
+    $system_theme_config = \Drupal::configFactory()->getEditable('system.theme');
+    $system_theme_config->set('default', 'olivero')->save();
+
+    // Install required modules.
+    $module_installer = \Drupal::service('module_installer');
+    assert($module_installer instanceof ModuleInstallerInterface);
+    $module_installer->install(['test_htmx']);
+  }
+
+}