Symfony Forms EntityType Unit Testing - unit-testing

Question

I am trying to add unit test for my forms.
The problem is that almost all my forms has other types like collection, entity types etc.
I do that to mock Entity Type:
/**
* #return \PHPUnit_Framework_MockObject_MockObject
*/
protected function mockEntityType()
{
$mockEntityManager = $this->getMockBuilder('Doctrine\ORM\EntityManager')
->disableOriginalConstructor()
->getMock();
$mockRegistry = $this->getMockBuilder('Doctrine\Bundle\DoctrineBundle\Registry')
->disableOriginalConstructor()
->setMethods(array('getManagerForClass'))
->getMock();
$mockRegistry->expects($this->any())->method('getManagerForClass')
->will($this->returnValue($mockEntityManager));
$mockEntityType = $this->getMockBuilder('Symfony\Bridge\Doctrine\Form\Type\EntityType')
->setMethods(array('getName'))
->setConstructorArgs(array($mockRegistry))
->getMock();
$mockEntityType->expects($this->any())->method('getName')
->will($this->returnValue('entity'));
return $mockEntityType;
}
Then to use this in a test i do that for example:
public function testCompanyType()
{
$formData = array(
'name' => 'Test name',
'description' => 'Test description',
);
$company = new Company();
$this->fromArray($company, $formData);
$type = new CompanyType();
$form = $this->factory->create($type);
// submit the data to the form directly
$form->submit($formData);
$this->assertTrue($form->isSynchronized());
$this->assertEquals($company->getName(), $form->getData()->getName());
$view = $form->createView();
$children = $view->children;
foreach (array_keys($formData) as $key) {
$this->assertArrayHasKey($key, $children);
}
}
The problem is that in line $form = $this->factory->create($type);
I get error:
The option "route_name" does not exist. Defined options are: "action",
"attr", "auto_initialize", "block_name", "by_reference",
"choice_attr", "choice_label", "choice_list", "choice_loader",
"choice_name", "choice_translation_domain", "choice_value", "choices",
"choices_as_values", "class", "compound", "data", "data_class",
"disabled", "em", "empty_data", "empty_value", "error_bubbling",
"expanded", "group_by", "id_reader", "inherit_data", "label",
"label_attr", "label_format", "loader", "mapped", "max_length",
"method", "multiple", "pattern", "placeholder",
"post_max_size_message", "preferred_choices", "property",
"property_path", "query_builder", "read_only", "required",
"translation_domain", "trim", "virtual".
It mocks somehow entity type but with wrong options. EntityType should have route_name.
Anyone can help me fix this?