AC-15104::[CE] PHPUnit 12: Upgrade Checkout & Cart Management related test cases

Author: del72683

app/code/Magento/Checkout/Test/Unit/Controller/Cart/UpdatePostTest.php

@@ -87,8 +87,8 @@ class UpdatePostTest extends TestCase
     protected function setUp(): void
     {
         // Create mocks
-        $this->requestMock = $this->getMockForAbstractClass(RequestInterface::class);
-        $this->messageManagerMock = $this->getMockForAbstractClass(ManagerInterface::class);
+        $this->requestMock = $this->createMock(RequestInterface::class);
+        $this->messageManagerMock = $this->createMock(ManagerInterface::class);
         $this->quantityProcessorMock = $this->createMock(RequestQuantityProcessor::class);
         $this->cartMock = $this->createMock(Cart::class);
         $this->customerSessionMock = $this->createMock(CustomerSession::class);
@@ -137,9 +137,9 @@ private function createController(
 
         $controller = new UpdatePost(
             $context,
-            $this->getMockForAbstractClass(ScopeConfigInterface::class),
+            $this->createMock(ScopeConfigInterface::class),
             $this->createMock(CheckoutSession::class),
-            $this->getMockForAbstractClass(StoreManagerInterface::class),
+            $this->createMock(StoreManagerInterface::class),
             $formKeyValidator,
             $this->cartMock,
             $this->quantityProcessorMock

app/code/Magento/Checkout/Test/Unit/Helper/ShippingMethodManagementDouble.php renamed to app/code/Magento/Checkout/Test/Unit/Helper/ShippingMethodManagementTestHelper.php

@@ -8,16 +8,20 @@
 namespace Magento\Checkout\Test\Unit\Helper;
 
 use Magento\Quote\Api\Data\EstimateAddressInterface;
-use Magento\Quote\Api\ShippingMethodManagementInterface as ApiShippingMethodManagementInterface;
-use Magento\Quote\Model\ShippingMethodManagementInterface as ModelShippingMethodManagementInterface;
+use Magento\Quote\Model\ShippingMethodManagement;
 
 /**
- * Simple shipping method management double for unit tests.
+ * Test helper for shipping method management used in unit tests.
+ *
+ * Extends the concrete ShippingMethodManagement while bypassing
+ * the parent constructor and stubbing public methods used by tests.
  */
-class ShippingMethodManagementDouble implements
-    ApiShippingMethodManagementInterface,
-    ModelShippingMethodManagementInterface
+class ShippingMethodManagementTestHelper extends ShippingMethodManagement
 {
+    public function __construct()
+    {
+        // Skip parent constructor to avoid dependency graph
+    }
     /**
      * @inheritDoc
      */

app/code/Magento/Checkout/Test/Unit/Model/DefaultConfigProviderTest.php

@@ -33,10 +33,8 @@
 use Magento\Quote\Api\CartItemRepositoryInterface as QuoteItemRepository;
 use Magento\Quote\Api\CartRepositoryInterface;
 use Magento\Quote\Api\CartTotalRepositoryInterface;
-use Magento\Quote\Api\Data\TotalsInterface;
 use Magento\Quote\Api\PaymentMethodManagementInterface;
 use Magento\Quote\Api\ShippingMethodManagementInterface as ShippingMethodManager;
-use Magento\Quote\Model\ShippingMethodManagementInterface as ModelShippingMethodManager;
 use Magento\Quote\Model\Quote;
 use Magento\Quote\Model\Quote\Address;
 use Magento\Quote\Model\QuoteIdMaskFactory;
@@ -46,6 +44,7 @@
 use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;
 use Magento\Framework\Escaper;
+use Magento\Checkout\Test\Unit\Helper\ShippingMethodManagementTestHelper;
 use Magento\Checkout\Test\Unit\Helper\TotalsInterfaceTestHelper;
 
 /**
@@ -107,7 +106,7 @@ protected function setUp(): void
         $httpContext = $this->createMock(HttpContext::class);
         $quoteRepository = $this->createMock(CartRepositoryInterface::class);
         $quoteItemRepository = $this->createMock(QuoteItemRepository::class);
-        $this->shippingMethodManager = new \Magento\Checkout\Test\Unit\Helper\ShippingMethodManagementDouble();
+        $this->shippingMethodManager = new ShippingMethodManagementTestHelper();
         $configurationPool = $this->createMock(ConfigurationPool::class);
         $quoteIdMaskFactory = $this->createMock(QuoteIdMaskFactory::class);
         $localeFormat = $this->createMock(LocaleFormat::class);

app/code/Magento/Quote/Test/Unit/Helper/QuoteCouponTestHelper.php

@@ -0,0 +1,49 @@
+<?php
+/**
+ * Copyright 2025 Adobe
+ * All Rights Reserved.
+ */
+declare(strict_types=1);
+
+namespace Magento\Quote\Test\Unit\Helper;
+
+use Magento\Quote\Model\Quote;
+
+/**
+ * Test helper for Quote coupon code operations.
+ *
+ * Provides lightweight implementations of coupon code setters/getters
+ * while bypassing the parent constructor for unit tests.
+ */
+class QuoteCouponTestHelper extends Quote
+{
+    /**
+     * Construct helper without invoking the parent constructor.
+     */
+    public function __construct()
+    {
+        // Skip parent constructor
+    }
+
+    /**
+     * Set coupon code on the quote for testing.
+     *
+     * @param mixed $code
+     * @return $this
+     */
+    public function setCouponCode($code)
+    {
+        $this->setData('coupon_code', $code);
+        return $this;
+    }
+
+    /**
+     * Get coupon code from the quote for testing.
+     *
+     * @return mixed
+     */
+    public function getCouponCode()
+    {
+        return $this->getData('coupon_code');
+    }
+}

app/code/Magento/Quote/Test/Unit/Helper/RateCollectorForAddressTestHelper.php

@@ -7,17 +7,22 @@
 
 namespace Magento\Quote\Test\Unit\Helper;
 
-use Magento\Quote\Model\Quote\Address\RateCollectorInterface;
+use Magento\Shipping\Model\Shipping;
 use Magento\Quote\Model\Quote\Address\RateRequest;
 
 /**
  * Minimal rate collector for Address tests providing collectRates() and getResult().
  */
-class RateCollectorForAddressTestHelper implements RateCollectorInterface
+class RateCollectorForAddressTestHelper extends Shipping
 {
     /** @var mixed */
     private $result;
 
+    public function __construct()
+    {
+        // Skip parent constructor and dependencies
+    }
+
     /**
      * No-op collect that returns self for chaining.
      *