#481 Added cases to the guest coupon test

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

@@ -7,9 +7,13 @@
 
 namespace Magento\GraphQl\Quote\Guest;
 
+use Magento\Framework\Exception\LocalizedException;
+use Magento\Framework\Exception\NoSuchEntityException;
 use Magento\Quote\Model\Quote;
 use Magento\Quote\Model\QuoteIdToMaskedQuoteIdInterface;
 use Magento\Quote\Model\ResourceModel\Quote as QuoteResource;
+use Magento\SalesRule\Api\CouponRepositoryInterface;
+use Magento\SalesRule\Model\Coupon;
 use Magento\TestFramework\Helper\Bootstrap;
 use Magento\TestFramework\TestCase\GraphQlAbstract;
 
@@ -33,12 +37,24 @@ class RemoveCouponFromCartTest extends GraphQlAbstract
      */
     private $quoteIdToMaskedId;
 
+    /**
+     * @var CouponRepositoryInterface
+     */
+    private $couponRepository;
+
+    /**
+     * @var Coupon
+     */
+    private $coupon;
+
     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->couponRepository = $objectManager->get(CouponRepositoryInterface::class);
+        $this->coupon = $objectManager->create(Coupon::class);
     }
 
     /**
@@ -102,6 +118,106 @@ public function testRemoveCouponFromNonExistentCart()
         $this->graphQlQuery($query);
     }
 
+    /**
+     * @magentoApiDataFixture Magento/Checkout/_files/active_quote.php
+     */
+    public function testRemoveCouponFromEmptyCart()
+    {
+        $this->quoteResource->load(
+            $this->quote,
+            'test_order_1',
+            'reserved_order_id'
+        );
+        $quoteId = (int)$this->quote->getId();
+        $maskedQuoteId = $this->quoteIdToMaskedId->execute($quoteId);
+
+        /* Remove coupon from the empty quote */
+        $query = $this->prepareRemoveCouponRequestQuery($maskedQuoteId);
+
+        $this->expectExceptionMessage("The \"$quoteId\" Cart doesn't contain products");
+        $this->graphQlQuery($query);
+    }
+
+    /**
+     * @magentoApiDataFixture Magento/Checkout/_files/quote_with_simple_product_saved.php
+     * @magentoApiDataFixture Magento/SalesRule/_files/coupon_code_with_wildcard.php
+     */
+    public function testRemoveCouponFromCartWithoutItems()
+    {
+        $couponCode = '2?ds5!2d';
+
+        $this->quoteResource->load(
+            $this->quote,
+            'test_order_with_simple_product_without_address',
+            'reserved_order_id'
+        );
+
+        $maskedQuoteId = $this->quoteIdToMaskedId->execute((int)$this->quote->getId());
+
+        /* Apply coupon to the guest quote */
+        $query = $this->prepareAddCouponRequestQuery($maskedQuoteId, $couponCode);
+        $this->graphQlQuery($query);
+
+        /* Clear the quote */
+        $this->quote->removeAllItems();
+        $this->quoteResource->save($this->quote);
+
+        /* Remove coupon from the guest quote */
+        $query = $this->prepareRemoveCouponRequestQuery($maskedQuoteId);
+        $response = $this->graphQlQuery($query);
+
+        self::assertArrayHasKey('removeCouponFromCart', $response);
+        self::assertNull($response['removeCouponFromCart']['cart']['applied_coupon']['code']);
+    }
+
+    /**
+     * @magentoApiDataFixture Magento/Checkout/_files/quote_with_simple_product_saved.php
+     * @magentoApiDataFixture Magento/SalesRule/_files/coupon_code_with_wildcard.php
+     */
+    public function testRemoveNonExistentCouponFromCart()
+    {
+        $couponCode = '2?ds5!2d';
+
+        $this->quoteResource->load(
+            $this->quote,
+            'test_order_with_simple_product_without_address',
+            'reserved_order_id'
+        );
+        $maskedQuoteId = $this->quoteIdToMaskedId->execute((int)$this->quote->getId());
+
+        /* Apply coupon to the guest quote */
+        $query = $this->prepareAddCouponRequestQuery($maskedQuoteId, $couponCode);
+        $this->graphQlQuery($query);
+
+        /* Remove the coupon */
+        $this->removeCoupon($couponCode);
+
+        /* Remove the non-existent coupon from the quote */
+        $query = $this->prepareRemoveCouponRequestQuery($maskedQuoteId);
+
+        $response = $this->graphQlQuery($query);
+
+        self::assertArrayHasKey('removeCouponFromCart', $response);
+        self::assertNull($response['removeCouponFromCart']['cart']['applied_coupon']['code']);
+    }
+
+    /**
+     * Remove the given coupon code from the database
+     *
+     * @param string $couponCode
+     * @throws LocalizedException
+     * @throws NoSuchEntityException
+     */
+    private function removeCoupon(string $couponCode): void
+    {
+        $this->coupon->loadByCode($couponCode);
+        $couponId = $this->coupon->getCouponId();
+
+        if ($couponId) {
+            $this->couponRepository->deleteById($couponId);
+        }
+    }
+
     /**
      * @param string $maskedQuoteId
      * @param string $couponCode