PHP Mocking Final Class

Late response for someone who is looking for this specific doctrine query mock answer.

You can not mock Doctrine\ORM\Query because its "final" declaration, but if you look into Query class code then you will see that its extending AbstractQuery class and there should not be any problems mocking it.

/** @var \PHPUnit_Framework_MockObject_MockObject|AbstractQuery $queryMock */
$queryMock = $this
    ->getMockBuilder('Doctrine\ORM\AbstractQuery')
    ->disableOriginalConstructor()
    ->setMethods(['getResult'])
    ->getMockForAbstractClass();

Since you mentioned you don't want to use any other framework, you are only leaving yourself one option: uopz

uopz is a black magic extension of the runkit-and-scary-stuff genre, intended to help with QA infrastructure.

uopz_flags is a function that can modify the flags of functions, methods and classes.

<?php
final class Test {}

/** ZEND_ACC_CLASS is defined as 0, just looks nicer ... **/

uopz_flags(Test::class, null, ZEND_ACC_CLASS);

$reflector = new ReflectionClass(Test::class);

var_dump($reflector->isFinal());
?>

Will yield

bool(false)