Test class - Constructor Not Defined Error

Question

I'm a begginer in programming and Apex. Just wrote a batch class to update the field "Aging__c" in the object WorkOrder. If EndDate is null, the class does today date - StartDate, or EndDate - StartDate when EndDate is not null.

global class Atualizar_Aging_OS_Batch implements Database.Batchable<sObject>, Database.AllowsCallouts, Database.Stateful {

    global final String query;

    global Atualizar_Aging_OS_Batch(String q){
        System.debug(LoggingLevel.ERROR, '___ [cls Atualizar_Aging_OS - constrautor()] - Inicio... ');
        query = q;
    }

    /*
    Metodo start do batch
    */       
    global Database.QueryLocator start(Database.BatchableContext BC) {
        System.debug(LoggingLevel.ERROR, '___ [cls Atualizar_Aging_OS - start()] - Inicio... ');
        return Database.getQueryLocator(query);
    }

    /*
    Metodo execute, roda quando iniciar o Batch
    */        
    global void execute(Database.BatchableContext BC, List<WorkOrder> scope) {

        System.debug(LoggingLevel.ERROR, '___ [cls Atualizar_Aging_OS - execute()] - Inicio... ');

        List<WorkOrder> listOrdemServico = new List<WorkOrder>();

        try {

            for(sObject so : scope){

                WorkOrder OS = (WorkOrder) so;

                if(OS.EndDate == NULL){

                    DateTime hojeDateTime = System.now();
                    Date hoje = date.newinstance(hojeDateTime.year(), hojeDateTime.month(), hojeDateTime.day());
                    Date dataInicial = date.newinstance(OS.StartDate.year(), OS.StartDate.month(), OS.StartDate.day());
                    OS.Aging__c = dataInicial.daysBetween(hoje);
                } else { 

                    DateTime hojeDateTime = System.now();
                    Date dataFinal = date.newinstance(OS.EndDate.year(), OS.EndDate.month(), OS.EndDate.day());
                    Date dataInicial = date.newinstance(OS.StartDate.year(), OS.StartDate.month(), OS.StartDate.day());
                    OS.Aging__c = dataInicial.daysBetween(dataFinal);
                }

                listOrdemServico.add(OS);     

            }

            if(listOrdemServico != null && listOrdemServico.size() > 0) update listOrdemServico;

        } catch(Exception e){

            System.debug(LoggingLevel.ERROR, '___ [cls Atualizar_Aging_OS - execute()] - ERROR: '+e.getMessage());
        }
    }

    global void finish(Database.BatchableContext BC) {}

}

I'm not sure about the testclass since it's just my second testclass I'm writing. I'm getting the Error: Constructor Not Defined here:

@isTest
public class Teste_Atualizar_Aging_OS_Batch {

    @testSetup
    static void setup() {
        WorkOrder wo = new WorkOrder();
        wo.Cliente__c = 'testeOS';
        wo.Codigo_Externo__c = 1012145;
        wo.StartDate = system.now() -1;
        wo.EndDate = system.now();
        insert wo;
    }    
    static testMethod void testBatch() {
        Test.startTest();
        Atualizar_Aging_OS_Batch aaob = new Atualizar_Aging_OS_Batch();
        Id batchId = Database.executeBatch(aaob);
        Test.stopTest(); 

    }
}

Can anyone find out what's wrong with my code?

Answer 1

You have a parameterized constructor in batch apex.

To resolve the issue you would have to modify your test class to pass the required query string as a parameter while doing the instantiation as:

Atualizar_Aging_OS_Batch aaob = new Atualizar_Aging_OS_Batch('query string');