AC-15051:[CE] PHPUnit 12: Upgrade Product Types related test cases

Author: sandesh-as

app/code/Magento/Wishlist/Test/Unit/Helper/ItemTestHelper.php

@@ -0,0 +1,67 @@
+<?php
+/**
+ * Copyright 2025 Adobe
+ * All Rights Reserved.
+ */
+declare(strict_types=1);
+
+namespace Magento\Wishlist\Test\Unit\Helper;
+
+use Magento\Wishlist\Model\Item;
+
+/**
+ * Test helper for Magento\Catalog\Model\Product\Configuration\Item\ItemInterface
+ * Using Magento\Wishlist\Model\Item class as We need an concrete class to implement the interface
+ * Implements ItemInterface to provide custom methods for testing
+ */
+class ItemTestHelper extends Item
+{
+    /**
+     * @var array
+     */
+    private $data = [];
+
+    /**
+     * Constructor
+     */
+    public function __construct()
+    {
+        // No parent constructor to call for interface
+    }
+
+    /**
+     * Get option by code
+     *
+     * @param string $code
+     * @return mixed
+     */
+    public function getOptionByCode($code)
+    {
+        // Support callback pattern used in Bundle tests
+        if (isset($this->data['option_by_code_callback']) && is_callable($this->data['option_by_code_callback'])) {
+            return call_user_func($this->data['option_by_code_callback'], $code);
+        }
+
+        return $this->data['options'][$code] ?? $this->data['option_by_code_callback'] ?? null;
+    }
+
+    /**
+     * Set option by code for testing
+     * Supports both individual options and callback patterns
+     *
+     * @param string|callable|null $codeOrCallback
+     * @param mixed $option
+     * @return self
+     */
+    public function setOptionByCode($codeOrCallback, $option = null): self
+    {
+        // If only one parameter is provided, it's either a callback or null
+        if (func_num_args() === 1) {
+            $this->data['option_by_code_callback'] = $codeOrCallback;
+        } else {
+            // Two parameters: traditional code => option mapping
+            $this->data['options'][$codeOrCallback] = $option;
+        }
+        return $this;
+    }
+}