JobType.php

<?php

namespace Test\Job\JobBundle\Form\Type;

use Test\Job\CompanyBundle\Form\Type\CompanyType;
use Test\CoreBundle\Form\Type\AddressType;
use Doctrine\Common\Persistence\ObjectManager;
use Test\Job\JobBundle\Form\Transformer\CompanyToIdTransformer;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;

class JobType extends AbstractType
{

    /** @var ObjectManager $_om */
    private $_om;

    public function __construct(ObjectManager $om)
    {
        $this->_om = $om;
    }

    /**
     * @param FormBuilderInterface $builder
     * @param array $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('job', TextType::class, [ 'label' => 'Job #', 'disabled' => true])
            ->add('address', AddressType::class)
            ->add('estimate', TextType::class, [ 'required' => false, 'label' => 'Estimate #'])
            ->add('company', ChoiceType::class, [
                'empty_data' => 'None Selected',
                'choices' => $options['companies'],
                'attr' => [ 'class' => 'companySelect' ],
                'required' => false
            ])
            ->add('new_company', CompanyType::class)
        ;

        $builder->get('company')
            ->addModelTransformer(new CompanyToIdTransformer($this->_om));
    }
    
    /**
     * @param OptionsResolver $resolver
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'Test\Job\JobBundle\Entity\Job',
            'companies' => []
        ));
    }

    /**
     * @return string
     */
    public function getName()
    {
        return 'jobbundle_po';
    }
}

<?php


namespace Test\Job\CompanyBundle\Tests\Form\Type;


use Test\CoreBundle\Entity\Address;
use Test\Job\CompanyBundle\Entity\Company;
use Test\Job\JobBundle\Entity\Job;
use Test\Job\JobBundle\Form\Type\JobType;
use Symfony\Component\Form\PreloadedExtension;
use Symfony\Component\Form\Test\TypeTestCase;

class JobTypeTest extends TypeTestCase
{

    public function testSubmittedValueData()
    {
        $address = new Address();
        $address->setState('IN');

        $company = new Company();
        $company->setAddress($address);

        $em = $this->getMockBuilder('\Doctrine\ORM\EntityManager')
            ->disableOriginalConstructor()
            ->getMock();

        $formData = [
            'name' => 'Test',
            'contact' => 'Name',
            'customerPo' => '12345',
            'address' => $address,
            'company' => $company
        ];

        //$type = new JobType($em);

        $type = JobType::class;
        $form = $this->factory->create($type);

        $job = new Job();

        $job->createFromArray($formData);

        unset($formData['address']);
        unset($formData['company']);

        $form->submit($formData);

        $this->assertEquals($job, $form->getData());

        $view = $form->createView();
        $children = $view->children;

        foreach (array_keys($formData) as $key) {
            $this->assertArrayHasKey($key, $children);
        }

    }
}