Apex Intermediate Progress | ( Lessons)

Lesson: 08 | Testing Batch Apex

Testing Batch Apex

Apex Class

public class UpdateContactAddresses implements
    Database.Batchable<sObject>, Database.Stateful {
    public Database.QueryLocator start(Database.BatchableContext BC) {
        return Database.getQueryLocator(
            'SELECT ID, BillingStreet, BillingCity, BillingState, ' +
            'BillingPostalCode, (SELECT ID, MailingStreet, MailingCity, ' +
            'MailingState, MailingPostalCode FROM Contacts) FROM Account '  +
            'Where BillingCountry = \'USA\'');
    }
    public void execute(Database.BatchableContext BC, List<Account> acList){
        List<Contact> contacts = new List<Contact>();
        for (Account ac : acList) {
            for (Contact con : ac.contacts) {
                con.MailingStreet = ac.BillingStreet;
                con.MailingCity = ac.BillingCity;
                con.MailingState = ac.BillingState;
                con.MailingPostalCode = ac.BillingPostalCode;
                contacts.add(con);
            }
        }
        update contacts;
    }
    public void finish(Database.BatchableContext BC){

Apex Code

UpdateContactAddresses obj = new UpdateContactAddresses();
Database.executeBatch(obj);

Apex Test Class

@isTest
private class UpdateContactAddressesTest {
    @testSetup
    static void setup() {
        List<Account> acList = new List<Account>();
        List<Contact> conList = new List<Contact>();

        for (Integer i=0;i<10;i++) {
            acList.add(new Account(name='Account '+i,
                billingcity='New York', billingcountry='USA'));
        }
        insert acList;

        for (Account ac : [select id from account]) {
            conList.add(new Contact(firstname='first',
                lastname='last', accountId=ac.id));
        }
        insert conList;
    }
    @isTest static void test() {
        Test.startTest();
        UpdateContactAddresses objA = new UpdateContactAddresses();
        Database.executeBatch(objA);
        Test.stopTest();
  
        System.assertEquals(10, [select count() from contact where MailingCity = 'New York']);
    }
}

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Apex Intermediate

A. Apex DML Operations (8 lessons)

B. Apex Classes (17 lessons)

C. Apex Triggers (9 lessons)

D. Apex Exceptions (11 lessons)

E. Asynchronous Apex (6 lessons)

F. SOSL (10 lessons)

G. Testing Apex (9 lessons)

H. Apex Fast Recap (142 lessons)

I. Build Apex Coding Skills (64 lessons)

J. Miscellaneous (17 lessons)

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Lesson: 08 | Testing Batch Apex

Apex Class

Apex Intermediate