Add Test class

Author: Sarveshgithub

main/default/classes/RelatedList_Test.cls

@@ -0,0 +1,26 @@
+@isTest
+public with sharing class RelatedList_Test {
+    @IsTest
+    static void getRecords_Test(){
+        
+        Test.startTest();
+        User testUser = [Select id from user where id = :UserInfo.getUserId()];
+        System.runAs(testUser){
+            RelatedList.getRecords('Select id from contact limit 10');
+        }
+        Test.stopTest();
+        
+    }
+
+    @IsTest
+    static void countRecords_Test(){
+        User testUser = [Select id from user where id = :UserInfo.getUserId()];
+        Test.startTest();
+        System.runAs(testUser){
+            RelatedList.countRecords('Contact');
+            RelatedList.countRecords(null);
+        }
+        Test.stopTest();
+        
+    }
+}

main/default/classes/RelatedList_Test.cls-meta.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ApexClass xmlns="http://soap.sforce.com/2006/04/metadata">
+    <apiVersion>48.0</apiVersion>
+    <status>Active</status>
+</ApexClass>