/**
* SingletonProvider constructor.
* @param ClassProviderInterface $provider
*/
public function __construct(ClassProviderInterface $provider)
{
parent::__construct($provider);
$this->provider = $provider;
}
public function testSingletonProvider()
{
$injector = new Injector(null);
/** @var ClassProvider $provider */
$provider = ClassProvider::init(Engine::class);
$singletonProvider = new SingletonProvider($provider);
$this->assertSame($singletonProvider->get($injector), $singletonProvider->get($injector));
}