Create queue in sfdc apex test class for case object

Usually we need to create all type of data while writing test class. Like custom settings, custom object records, queue.

Queue will be associated with the group. So to create a queue we need to create group. Following is the code snippet which runs to create the queue.

APEXTEST:

	@IsTest
	public class TestForQueue {
	static testMethod void validateTestForQueue() {
	//Creating Group
	Group testGroup = new Group(Name='QUEUE NAME', Type='Queue');
	insert testGroup;
	//Creating QUEUE
	System.runAs(new User(Id=UserInfo.getUserId()))
	{
	//Associating queue with group AND to the Case object
	QueuesObject testQueue = new QueueSObject(QueueID = testGroup.id, SObjectType = 'Case');
	insert testQueue;
	}
	//QUERYing to check -- Test Case 1
	QueueSobject q1 = [Select Id,q.Queue.Name,q.Queue.ID from QueueSobject q ORDER BY q.Queue.Name] ;
	System.debug(q1.Queue.Name);
	//Updating Queue Name
	testGroup.Name = 'DIFFERENT QUEUE NAME' ;
	update testGroup;
	//QUERYing to check -- Test Case 2
	QueueSobject q2 = [Select Id,q.Queue.Name,q.Queue.ID from QueueSobject q ORDER BY q.Queue.Name] ;
	System.debug(q2.Queue.Name);
	}
	}

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