MAGETWO-48114: Update integration tests

 -- updated salesrule db schema so that discount_step has default value of 0

Author: Robert He

app/code/Magento/SalesRule/Setup/UpgradeSchema.php

@@ -0,0 +1,53 @@
+<?php
+/**
+ * Copyright © 2016 Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\SalesRule\Setup;
+
+use Magento\Framework\Setup\UpgradeSchemaInterface;
+use Magento\Framework\Setup\ModuleContextInterface;
+use Magento\Framework\Setup\SchemaSetupInterface;
+use Magento\Framework\DB\Ddl\Table;
+
+/**
+ * Upgrade the SalesRule module DB scheme
+ */
+class UpgradeSchema implements UpgradeSchemaInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function upgrade(SchemaSetupInterface $setup, ModuleContextInterface $context)
+    {
+        $setup->startSetup();
+
+        if (version_compare($context->getVersion(), '2.0.1', '<')) {
+            $this->addDefaultValueForDiscountStep($setup);
+        }
+
+        $setup->endSetup();
+    }
+
+    /**
+     * Add default value of 0 for the discount step column
+     * @param SchemaSetupInterface $setup
+     * @return void
+     */
+    private function addDefaultValueForDiscountStep(SchemaSetupInterface $setup)
+    {
+        $connection = $setup->getConnection();
+        $connection->modifyColumn(
+            $setup->getTable('salesrule'),
+            'discount_step',
+            [
+                'type' => Table::TYPE_INTEGER,
+                'unsigned' => true,
+                'nullable' => false,
+                'default' => '0',
+                'comment' => 'Discount Step',
+            ]
+        );
+    }
+}

app/code/Magento/SalesRule/etc/module.xml

@@ -6,7 +6,7 @@
  */
 -->
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
-    <module name="Magento_SalesRule" setup_version="2.0.0">
+    <module name="Magento_SalesRule" setup_version="2.0.1">
         <sequence>
             <module name="Magento_Rule"/>
             <module name="Magento_Catalog"/>