public function test_accessing_service_by_alias()
{
$this->containerBuilder->register('service', new SymfonyDefinition(\stdClass::class));
$this->containerBuilder->setAlias('service_alias', 'service');
$this->assertTrue($this->serviceContainer->definitionExists('service_alias'));
$this->assertSame(\stdClass::class, $this->serviceContainer->definitionClass('service_alias'));
}