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system/Test/ConfigFromArrayTrait.php

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+<?php
+
+declare(strict_types=1);
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Test;
+
+use LogicException;
+
+trait ConfigFromArrayTrait
+{
+    /**
+     * Creates a Config instance from an array.
+     *
+     * @template T of \CodeIgniter\Config\BaseConfig
+     *
+     * @param class-string<T>      $classname Config classname
+     * @param array<string, mixed> $config
+     *
+     * @return T
+     */
+    private function createConfigFromArray(string $classname, array $config)
+    {
+        $configObj = new $classname();
+
+        foreach ($config as $key => $value) {
+            if (property_exists($configObj, $key)) {
+                $configObj->{$key} = $value;
+
+                continue;
+            }
+
+            throw new LogicException(
+                'No such property: ' . $classname . '::$' . $key
+            );
+        }
+
+        return $configObj;
+    }
+}