Add API Test For Selected Shipping Method functionality

dev/tests/api-functional/testsuite/Magento/GraphQl/Quote/Customer/SelectedShippingMethodTest.php

@@ -0,0 +1,223 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\GraphQl\Quote\Customer;
+
+use Magento\TestFramework\TestCase\GraphQlAbstract;
+
+class SelectedShippingMethodTest extends GraphQlAbstract
+{
+    /**
+     * @var \Magento\TestFramework\ObjectManager
+     */
+    private $objectManager;
+
+    /**
+     * @var \Magento\Framework\Api\SearchCriteriaBuilder
+     */
+    private $searchCriteriaBuilder;
+
+    /**
+     * @var \Magento\Framework\Api\SortOrderBuilder
+     */
+    private $sortOrderBuilder;
+
+    /**
+     * @var \Magento\Framework\Api\FilterBuilder
+     */
+    private $filterBuilder;
+
+    /**
+     * @var \Magento\Quote\Model\ResourceModel\Quote
+     */
+    private $quoteResource;
+
+    /**
+     * @var \Magento\Quote\Model\QuoteFactory
+     */
+    private $quoteFactory;
+
+    /**
+     * @var \Magento\Quote\Model\QuoteIdToMaskedQuoteIdInterface
+     */
+    private $quoteIdToMaskedId;
+
+    /**
+     * @var \Magento\Integration\Api\CustomerTokenServiceInterface
+     */
+    private $customerTokenService;
+
+    /**
+     * @param $response
+     * @return mixed
+     */
+    public function getSelectedShippingMethod($response)
+    {
+        return $response['cart']['shipping_addresses'][0]['selected_shipping_method'];
+    }
+
+    protected function setUp()
+    {
+        $this->objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();
+
+        $this->filterBuilder = $this->objectManager->create(
+            \Magento\Framework\Api\FilterBuilder::class
+        );
+        $this->sortOrderBuilder = $this->objectManager->create(
+            \Magento\Framework\Api\SortOrderBuilder::class
+        );
+        $this->searchCriteriaBuilder = $this->objectManager->create(
+            \Magento\Framework\Api\SearchCriteriaBuilder::class
+        );
+        $this->quoteResource = $this->objectManager->get(
+            \Magento\Quote\Model\ResourceModel\Quote::class
+        );
+        $this->quoteFactory = $this->objectManager->get(
+            \Magento\Quote\Model\QuoteFactory::class
+        );
+        $this->quoteIdToMaskedId = $this->objectManager->get(
+            \Magento\Quote\Model\QuoteIdToMaskedQuoteIdInterface::class
+        );
+        $this->customerTokenService = $this->objectManager->get(
+            \Magento\Integration\Api\CustomerTokenServiceInterface::class
+        );
+    }
+
+    /**
+     * @magentoApiDataFixture Magento/Checkout/_files/quote_with_shipping_method.php
+     */
+    public function testGetCartWithShippingMethod()
+    {
+        $maskedQuoteId = $this->getMaskedQuoteIdByReservedOrderId('test_order_1');
+        $query = $this->getQuery($maskedQuoteId);
+        $response = $this->graphQlQuery($query, [], '', $this->getHeaderMap());
+
+        self::assertArrayHasKey('cart', $response);
+        self::assertInternalType(
+            'array',
+            $response['cart']['shipping_addresses'][0]['selected_shipping_method'],
+            'There are no selected shipping method for customer cart!'
+        );
+    }
+
+    /**
+     * @magentoApiDataFixture Magento/Checkout/_files/quote_with_shipping_method.php
+     */
+    public function testGetShippingMethodFromCustomerCart()
+    {
+        $maskedQuoteId = $this->getMaskedQuoteIdByReservedOrderId('test_order_1');
+        $query = $this->getQuery($maskedQuoteId);
+        $response = $this->graphQlQuery($query, [], '', $this->getHeaderMap());
+
+        self::assertArrayHasKey('cart', $response);
+
+        $selectedShippingMethod = $this->getSelectedShippingMethod($response);
+
+        self::assertEquals('flatrate', $selectedShippingMethod['carrier_code']);
+        self::assertEquals('flatrate', $selectedShippingMethod['method_code']);
+        self::assertEquals('Flat Rate - Fixed', $selectedShippingMethod['label']);
+        self::assertEquals(0, $selectedShippingMethod['amount']);
+    }
+
+    /**
+     * @magentoApiDataFixture Magento/Checkout/_files/quote_with_address.php
+     */
+    public function testGetShippingMethodIfShippingMethodIsNotSet()
+    {
+        $maskedQuoteId = $this->getMaskedQuoteIdByReservedOrderId('test_order_1');
+        $query = $this->getQuery($maskedQuoteId);
+
+        $response = $this->graphQlQuery($query, [], '', $this->getHeaderMap());
+
+        self::assertArrayHasKey('cart', $response);
+
+        $selectedShippingMethod = $this->getSelectedShippingMethod($response);
+
+        self::assertNull($selectedShippingMethod['carrier_code']);
+        self::assertNull($selectedShippingMethod['method_code']);
+        self::assertNull($selectedShippingMethod['label']);
+        self::assertNull($selectedShippingMethod['amount']);
+    }
+
+    /**
+     * @magentoApiDataFixture Magento/Checkout/_files/quote_with_address.php
+     */
+    public function testGetShippingMethodOfNonExistentCart()
+    {
+        $query = $this->getQuery('nonExistentCart');
+        self::expectException(\Magento\TestFramework\TestCase\GraphQl\ResponseContainsErrorsException::class);
+        self::expectExceptionMessage(
+            'GraphQL response contains errors: Could not find a cart with ID "nonExistentCart"'
+        );
+        $this->graphQlQuery($query, [], '', $this->getHeaderMap());
+    }
+
+    /**
+     * Retrieve quote by given reserved order ID
+     *
+     * @param string $reservedOrderId
+     * @return \Magento\Quote\Model\Quote
+     * @throws \InvalidArgumentException
+     */
+    protected function getCart($reservedOrderId)
+    {
+        /** @var $cart \Magento\Quote\Model\Quote */
+        $cart = $this->objectManager->get(\Magento\Quote\Model\Quote::class);
+        $cart->load($reservedOrderId, 'reserved_order_id');
+        if (!$cart->getId()) {
+            throw new \InvalidArgumentException('There is no quote with provided reserved order ID.');
+        }
+        return $cart;
+    }
+
+    /**
+     * @param string $reservedOrderId
+     * @return string
+     */
+    private function getMaskedQuoteIdByReservedOrderId(string $reservedOrderId): string
+    {
+        $quote = $this->quoteFactory->create();
+        $this->quoteResource->load($quote, $reservedOrderId, 'reserved_order_id');
+
+        return $this->quoteIdToMaskedId->execute((int)$quote->getId());
+    }
+
+    /**
+     * @param string $username
+     * @param string $password
+     * @return array
+     */
+    private function getHeaderMap(string $username = 'customer@example.com', string $password = 'password'): array
+    {
+        $customerToken = $this->customerTokenService->createCustomerAccessToken($username, $password);
+        $headerMap = ['Authorization' => 'Bearer ' . $customerToken];
+        return $headerMap;
+    }
+
+    /**
+     * @param string $maskedQuoteId
+     * @return string
+     */
+    private function getQuery(
+        string $maskedQuoteId
+    ): string {
+        return <<<QUERY
+{
+  cart(cart_id: "$maskedQuoteId") {
+    shipping_addresses {
+      selected_shipping_method {
+        carrier_code
+        method_code
+        label
+        amount
+      }
+    }
+  }
+}
+QUERY;
+    }
+}