graphQl-292: added test coverage for payment methods

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

@@ -0,0 +1,152 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\GraphQl\Quote;
+
+use Magento\Integration\Api\CustomerTokenServiceInterface;
+use Magento\Quote\Model\Quote;
+use Magento\Quote\Model\QuoteIdToMaskedQuoteIdInterface;
+use Magento\Quote\Model\ResourceModel\Quote as QuoteResource;
+use Magento\TestFramework\Helper\Bootstrap;
+use Magento\TestFramework\TestCase\GraphQlAbstract;
+
+/**
+ * Test for getting cart information
+ */
+class GetAvailablePaymentMethodsTest extends GraphQlAbstract
+{
+    /**
+     * @var CustomerTokenServiceInterface
+     */
+    private $customerTokenService;
+
+    /**
+     * @var QuoteResource
+     */
+    private $quoteResource;
+
+    /**
+     * @var Quote
+     */
+    private $quote;
+
+    /**
+     * @var QuoteIdToMaskedQuoteIdInterface
+     */
+    private $quoteIdToMaskedId;
+
+    /**
+     * @inheritdoc
+     */
+    protected function setUp()
+    {
+        $objectManager = Bootstrap::getObjectManager();
+        $this->quoteResource = $objectManager->create(QuoteResource::class);
+        $this->quote = $objectManager->create(Quote::class);
+        $this->quoteIdToMaskedId = $objectManager->create(QuoteIdToMaskedQuoteIdInterface::class);
+        $this->customerTokenService = $objectManager->get(CustomerTokenServiceInterface::class);
+    }
+
+    /**
+     * @magentoApiDataFixture Magento/Checkout/_files/quote_with_items_saved.php
+     */
+    public function testGetCartWithPaymentMethodsForRegisteredCustomer()
+    {
+        $reservedOrderId = 'test_order_item_with_items';
+        $this->quoteResource->load(
+            $this->quote,
+            $reservedOrderId,
+            'reserved_order_id'
+        );
+
+        $maskedQuoteId = $this->quoteIdToMaskedId->execute((int)$this->quote->getId());
+        $query = $this->prepareGetCartQuery($maskedQuoteId);
+
+        $response = $this->sendRequestWithToken($query);
+
+        self::assertArrayHasKey('cart', $response);
+        self::assertNotEmpty($response['cart']['items']);
+        self::assertNotEmpty($response['cart']['available_payment_methods']);
+        self::assertCount(1, $response['cart']['available_payment_methods']);
+        self::assertEquals('checkmo', $response['cart']['available_payment_methods'][0]['code']);
+        self::assertEquals('Check / Money order', $response['cart']['available_payment_methods'][0]['title']);
+    }
+
+    /**
+     * @magentoApiDataFixture Magento/Checkout/_files/active_quote.php
+     */
+    public function testGetCartWithPaymentMethodsForGuest()
+    {
+        $reservedOrderId = 'test_order_1';
+        $this->quoteResource->load(
+            $this->quote,
+            $reservedOrderId,
+            'reserved_order_id'
+        );
+
+        $maskedQuoteId = $this->quoteIdToMaskedId->execute((int)$this->quote->getId());
+        $query = $this->prepareGetCartQuery($maskedQuoteId);
+
+        $response = $this->graphQlQuery($query);
+
+        self::assertArrayHasKey('cart', $response);
+
+        self::assertNotEmpty($response['cart']['available_payment_methods']);
+        self::assertCount(2, $response['cart']['available_payment_methods']);
+        self::assertEquals('checkmo', $response['cart']['available_payment_methods'][0]['code']);
+        self::assertEquals('Check / Money order', $response['cart']['available_payment_methods'][0]['title']);
+        self::assertEquals('free', $response['cart']['available_payment_methods'][1]['code']);
+        self::assertEquals(
+            'No Payment Information Required',
+            $response['cart']['available_payment_methods'][1]['title']
+        );
+    }
+
+    /**
+     * Generates query for setting the specified shipping method on cart
+     *
+     * @param string $maskedQuoteId
+     * @return string
+     */
+    private function prepareGetCartQuery(
+        string $maskedQuoteId
+    ) : string {
+        return <<<QUERY
+{
+  cart(cart_id: "$maskedQuoteId") {
+    applied_coupon {
+    	  code
+    }
+    items {
+      id
+    }
+    available_payment_methods {
+      code,
+      title
+    }
+  }
+}
+
+QUERY;
+    }
+
+    /**
+     * Sends a GraphQL request with using a bearer token
+     *
+     * @param string $query
+     * @return array
+     * @throws \Magento\Framework\Exception\AuthenticationException
+     */
+    private function sendRequestWithToken(string $query): array
+    {
+
+        $customerToken = $this->customerTokenService->createCustomerAccessToken('customer@example.com', 'password');
+        $headerMap = ['Authorization' => 'Bearer ' . $customerToken];
+
+        return $this->graphQlQuery($query, [], '', $headerMap);
+    }
+}