public function testInstantiateWithConcreteClassDependency()
{
$ioc = new IocImpl();
$b = new B();
$ioc->register($b, ["registerClass" => true]);
$a = $ioc->instantiate(DependentA_ConcreteB::class);
$this->assertInstanceOf(DependentA_ConcreteB::class, $a);
$this->assertSame($b, $a->getB());
}
