magento#12817: Coupon code with canceled order.

Author: p-bystritsky

dev/tests/integration/testsuite/Magento/SalesRule/Observer/SalesOrderAfterCancelObserverTest.php

@@ -0,0 +1,101 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\SalesRule\Observer;
+
+use Magento\Framework\DataObject;
+use Magento\Framework\ObjectManagerInterface;
+use Magento\Sales\Model\Order;
+use Magento\SalesRule\Model\Coupon;
+use Magento\SalesRule\Model\ResourceModel\Coupon\Usage;
+use Magento\TestFramework\Helper\Bootstrap;
+
+/**
+ * Test decreasing coupon usages after order cancellation.
+ *
+ * @magentoDbIsolation enabled
+ * @magentoAppIsolation enabled
+ */
+class SalesOrderAfterCancelObserverTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * @var ObjectManagerInterface
+     */
+    private $objectManager;
+
+    /**
+     * @var Coupon
+     */
+    private $coupon;
+
+    /**
+     * @var Usage
+     */
+    private $usage;
+
+    /**
+     * @var DataObject
+     */
+    private $couponUsage;
+
+    /**
+     * @var Order
+     */
+    private $order;
+
+    /**
+     * Test increasing coupon usages after after order placing and decreasing after order cancellation.
+     *
+     * @magentoDataFixture Magento/Customer/_files/customer.php
+     * @magentoDataFixture Magento/SalesRule/_files/coupons_limited_order.php
+     */
+    public function testOrderCancellation()
+    {
+        $customerId = 1;
+        $couponCode = 'one_usage';
+        $orderId = '100000001';
+
+        $this->coupon->loadByCode($couponCode);
+        $this->order->loadByIncrementId($orderId);
+
+        // Make sure coupon usages value is incremented then order is placed.
+        $this->order->place();
+        $this->usage->loadByCustomerCoupon($this->couponUsage, $customerId, $this->coupon->getId());
+        $this->coupon->loadByCode($couponCode);
+
+        self::assertEquals(
+            1,
+            $this->coupon->getTimesUsed()
+        );
+        self::assertEquals(
+            1,
+            $this->couponUsage->getTimesUsed()
+        );
+
+        // Make sure order coupon usages value is decremented then order is cancelled.
+        $this->order->cancel();
+        $this->usage->loadByCustomerCoupon($this->couponUsage, $customerId, $this->coupon->getId());
+        $this->coupon->loadByCode($couponCode);
+
+        self::assertEquals(
+            0,
+            $this->coupon->getTimesUsed()
+        );
+        self::assertEquals(
+            0,
+            $this->couponUsage->getTimesUsed()
+        );
+    }
+
+    protected function setUp()
+    {
+        $this->objectManager = Bootstrap::getObjectManager();
+        $this->coupon = $this->objectManager->get(Coupon::class);
+        $this->usage = $this->objectManager->get(Usage::class);
+        $this->couponUsage = $this->objectManager->get(DataObject::class);
+        $this->order = $this->objectManager->get(Order::class);
+    }
+}

dev/tests/integration/testsuite/Magento/SalesRule/_files/coupons_limited_order.php

@@ -0,0 +1,26 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+use Magento\Sales\Model\Order;
+use Magento\TestFramework\Helper\Bootstrap;
+
+require_once 'coupons_limited.php';
+require __DIR__ . '/../../../Magento/Sales/_files/order.php';
+
+$collection = Bootstrap::getObjectManager()->create(
+    \Magento\SalesRule\Model\ResourceModel\Rule\Collection::class
+);
+$items = array_values($collection->getItems());
+
+/** @var Order $order */
+$order = Bootstrap::getObjectManager()->create(Order::class);
+
+$order->loadByIncrementId('100000001')
+    ->setCouponCode('one_usage')
+    ->setAppliedRuleIds("{$items[0]->getId()}")
+    ->setCreatedAt('2014-10-25 10:10:10')
+    ->setCustomerId(1)
+    ->save();

dev/tests/integration/testsuite/Magento/SalesRule/_files/coupons_limited_order_rollback.php

@@ -0,0 +1,8 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+require __DIR__ . '/../../../Magento/Sales/_files/order_rollback.php';
+require_once 'coupons_limited_rollback.php';