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hello guys I need help with a class that uses @future
Create a field on the Account object called 'Number_of_Contacts__c' of type Number. This field will hold the total number of Contacts for the Account.
Create an Apex class called 'AccountProcessor' that contains a 'countContacts' method that accepts a List of Account IDs. This method must use the @future annotation.
For each Account ID passed to the method, count the number of Contact records associated to it and update the 'Number_of_Contacts__c' field with this value.
Create an Apex test class called 'AccountProcessorTest'.
Create an Apex class called 'AccountProcessor' that contains a 'countContacts' method that accepts a List of Account IDs. This method must use the @future annotation.
For each Account ID passed to the method, count the number of Contact records associated to it and update the 'Number_of_Contacts__c' field with this value.
Create an Apex test class called 'AccountProcessorTest'.
public class AccountProcessor
{
@future
public static void countContacts(Set<id> setId)
{
List<Account> lstAccount = [select id,Number_Of_Contacts__c, (select id from contacts ) from account where id in :setId ];
for( Account acc : lstAccount )
{
List<Contact> lstCont = acc.contacts ;
acc.No_Of_Contact__c = lstCont.size();
}
update lstAccount;
}
}
Test Class:
@IsTest
public class AccountProcessorTest {
public static testmethod void TestAccountProcessorTest()
{
Account a = new Account();
a.Name = 'Test Account';
Insert a;
Contact cont = New Contact();
cont.FirstName ='Bob';
cont.LastName ='Masters';
cont.AccountId = a.Id;
Insert cont;
set<Id> setAccId = new Set<ID>();
setAccId.add(a.id);
Test.startTest();
AccountProcessor.countContacts(setAccId);
Test.stopTest();
Account ACC = [select Number_Of_Contacts__c from Account where id = :a.id LIMIT 1];
System.assertEquals ( Integer.valueOf(ACC.Number_Of_Contacts__c) ,1);
}
}
All Answers
public class AccountProcessor
{
@future
public static void countContacts(Set<id> setId)
{
List<Account> lstAccount = [select id,Number_Of_Contacts__c, (select id from contacts ) from account where id in :setId ];
for( Account acc : lstAccount )
{
List<Contact> lstCont = acc.contacts ;
acc.No_Of_Contact__c = lstCont.size();
}
update lstAccount;
}
}
Test Class:
@IsTest
public class AccountProcessorTest {
public static testmethod void TestAccountProcessorTest()
{
Account a = new Account();
a.Name = 'Test Account';
Insert a;
Contact cont = New Contact();
cont.FirstName ='Bob';
cont.LastName ='Masters';
cont.AccountId = a.Id;
Insert cont;
set<Id> setAccId = new Set<ID>();
setAccId.add(a.id);
Test.startTest();
AccountProcessor.countContacts(setAccId);
Test.stopTest();
Account ACC = [select Number_Of_Contacts__c from Account where id = :a.id LIMIT 1];
System.assertEquals ( Integer.valueOf(ACC.Number_Of_Contacts__c) ,1);
}
}