MC-31395: Unexpected behavior of counts for prices in Layered navigation block

Author: OlgaVasyltsun

app/code/Magento/Catalog/Model/ProductRepository.php

@@ -914,7 +914,8 @@ private function joinPositionField(
         foreach ($searchCriteria->getFilterGroups() as $filterGroup) {
             foreach ($filterGroup->getFilters() as $filter) {
                 if ($filter->getField() === 'category_id') {
-                    $categoryIds[] = explode(',', $filter->getValue());
+                    $filterValue = $filter->getValue();
+                    $categoryIds[] = is_array($filterValue) ? $filterValue : explode(',', $filterValue);
                 }
             }
         }

app/code/Magento/Catalog/Test/Mftf/ActionGroup/AssertStorefrontAttributeOptionQuantityInLayeredNavigationActionGroup.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ /**
+  * Copyright © Magento, Inc. All rights reserved.
+  * See COPYING.txt for license details.
+  */
+-->
+
+<actionGroups xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+              xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/actionGroupSchema.xsd">
+    <actionGroup name="AssertStorefrontAttributeOptionQuantityInLayeredNavigationActionGroup" extends="AssertStorefrontAttributeOptionPresentInLayeredNavigationActionGroup">
+        <annotations>
+            <description>Asserts visible attribute option quantity</description>
+        </annotations>
+        <arguments>
+            <argument name="attributeOptionQuantity" type="string" defaultValue="1"/>
+        </arguments>
+        <see selector="{{StorefrontCategorySidebarSection.visibleOptionQty(attributeOptionPosition)}}" userInput="{{attributeOptionQuantity}}" after="assertAttributeOptionInLayeredNavigation" stepKey="assertOptionQuantity"/>
+    </actionGroup>
+</actionGroups>

app/code/Magento/Catalog/Test/Mftf/ActionGroup/StorefrontAssertSubCategoryNameIsNotShownInMenuActionGroup.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ /**
+  * Copyright © Magento, Inc. All rights reserved.
+  * See COPYING.txt for license details.
+  */
+-->
+
+<actionGroups xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+              xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/actionGroupSchema.xsd">
+    <actionGroup name="StorefrontAssertSubCategoryNameIsNotShownInMenuActionGroup" extends="StorefrontAssertCategoryNameIsNotShownInMenuActionGroup">
+        <annotations>
+            <description>Validate that the subcategory is not present in menu on Frontend.</description>
+        </annotations>
+        <arguments>
+            <argument name="parentCategoryName" type="string"/>
+        </arguments>
+        <moveMouseOver selector="{{StorefrontHeaderSection.NavigationCategoryByName(parentCategoryName)}}" before="doNotSeeCatergoryInStoreFront" stepKey="showSubCategories"/>
+    </actionGroup>
+</actionGroups>

app/code/Magento/Catalog/Test/Mftf/Section/StorefrontCategorySidebarSection/StorefrontCategorySidebarSection.xml

@@ -16,8 +16,9 @@
         <element name="filterOptionByLabel" type="button" selector=" div.filter-options-item div[data-option-label='{{optionLabel}}']" parameterized="true"/>
         <element name="removeFilter" type="button" selector="div.filter-current .remove" timeout="30"/>
         <element name="activeFilterOptions" type="text" selector=".filter-options-item.active .items"/>
-        <element name="activeFilterOptionItemByPosition" type="text" selector=".filter-options-item.active .items li:nth-child({{itemPosition}}) a" parameterized="true"/>
+        <element name="activeFilterOptionItemByPosition" type="text" selector=".filter-options-item.active .items li:nth-child({{itemPosition}}) a" parameterized="true" timeout="30"/>
         <element name="enabledFilterOptionItemByLabel" type="text" selector="//div[@class='filter-options']//li[@class='item']//a[contains(text(), '{{optionLabel}}')]" parameterized="true" timeout="30"/>
         <element name="disabledFilterOptionItemByLabel" type="text" selector="//div[@class='filter-options']//li[@class='item' and contains(text(), '{{optionLabel}}')]" parameterized="true" timeout="30"/>
+        <element name="visibleOptionQty" type="text" selector=".filter-options-item.active .items li:nth-child({{itemPosition}}) a .count" parameterized="true" timeout="30"/>
     </section>
 </sections>