MAGETWO-99605: Exact match search in the Backend

Author: nikita-shcherbatykh

app/code/Magento/Customer/Test/Mftf/Test/AdminExactMatchSearchInCustomerGridTest.xml

@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ /**
+  * Copyright © Magento, Inc. All rights reserved.
+  * See COPYING.txt for license details.
+  */
+-->
+
+<tests xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/testSchema.xsd">
+    <test name="AdminExactMatchSearchInCustomerGridTest">
+        <annotations>
+            <title value="Admin customer grid exact match searching"/>
+            <description value="Admin customer grid exact match searching with quotes in keyword"/>
+            <features value="Module/ Customer"/>
+            <severity value="MAJOR"/>
+            <testCaseId value="MC-16335"/>
+            <useCaseId value="MAGETWO-99605"/>
+            <stories value="Customer Search"/>
+            <group value="customer"/>
+        </annotations>
+        <before>
+            <createData entity="Simple_US_Customer" stepKey="createFirstCustomer"/>
+            <createData entity="Simple_US_Customer" stepKey="createSecondCustomer">
+                <field key="firstname">&quot;Jane Doe&quot;</field>
+            </createData>
+            <actionGroup ref="LoginAsAdmin" stepKey="login"/>
+        </before>
+        <after>
+            <deleteData createDataKey="createFirstCustomer" stepKey="deleteFirstCustomer"/>
+            <deleteData createDataKey="createSecondCustomer" stepKey="deleteSecondCustomer"/>
+            <actionGroup ref="logout" stepKey="logout"/>
+        </after>
+        <!--Step 1: Go to Customers > All Customers-->
+        <amOnPage url="{{AdminCustomerPage.url}}" stepKey="openCustomersGridPage"/>
+        <!--Step 2: On Customers grid page search customer by keyword with quotes-->
+        <actionGroup ref="searchAdminDataGridByKeyword" stepKey="searchOrder">
+            <argument name="keyword" value="$$createSecondCustomer.firstname$$"/>
+        </actionGroup>
+        <!--Step 3: Check if customer is placed in a first row and clear grid filter-->
+        <actionGroup ref="AdminAssertCustomerInCustomersGrid" stepKey="checkCustomerInGrid">
+            <argument name="text" value="$$createSecondCustomer.fullname$$"/>
+            <argument name="row" value="1"/>
+        </actionGroup>
+        <actionGroup ref="AdminResetFilterInCustomerAddressGrid" stepKey="clearCustomerGridFilter"/>
+    </test>
+</tests>

lib/internal/Magento/Framework/View/Element/UiComponent/DataProvider/FulltextFilter.php

@@ -65,6 +65,7 @@ function ($column) use ($alias) {
     /**
      * Escape against value
      * @param string $value
+     *
      * @return string
      */
     private function escapeAgainstValue(string $value): string