I am writing my first controller test and running into an issue.  The controller is used to drive a custom keystroke in the service console.

Here is the controller:

public class ShortcutListenerController {

// Lead id for lead to be closed
    public String selectedObjectId {get; set;} 
    public String closeReason {get; set;}

 // Close Lead
    public PageReference closeLead() {
    	system.debug('The Lead Id is :'+ selectedObjectId);
    	system.debug('The Reason is :'+ closeReason);
        Lead selectedLead = [SELECT id, status, Lead_Status_If_Closed_Specify__c FROM Lead WHERE id =:selectedObjectId LIMIT 1];
        selectedLead.status = 'Closed';
        selectedLead.Lead_Status_If_Closed_Specify__c=closeReason;
        update selectedLead;
        return null;
    }
}

Here is my test script:

@isTest
public class ShortcutControllerTest {

	ShortcutListenerController controller = new ShortcutListenerController();
	
    public static testMethod void shortcuttest() {
        // create lead
         Lead tl = new Lead(
            LastName = '123456', Company= '654321', Phone='1233213222'); 
        insert tl;  
      system.debug('Lead ID ='+tl.id);
      
      ApexPages.currentPage().getParameters().put('selectedObjectId', tl.id);
      ApexPages.currentPage().getParameters().put('closeReason', 'Test');
      
      PageReference pr = controller.closeLead();
      
      Lead t2 =[SELECT id, status, Lead_Status_If_Closed_Specify__c FROM Lead WHERE id =:tl.id];
      
      system.debug('Close Reason ='+t2.Lead_Status_If_Closed_Specify__c);
      system.debug('Status ='+t2.status);
    }
}

Why am I getting the error "Method does not exist of incorrect signature: controller.closeLead();

Thanks in advance

Phil