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<?php
namespace React\Promise;
use React\Promise\PromiseAdapter\CallbackPromiseAdapter;
class FulfilledPromiseTest extends TestCase
{
use PromiseTest\PromiseSettledTestTrait,
PromiseTest\PromiseFulfilledTestTrait;
public function getPromiseTestAdapter(callable $canceller = null)
{
$promise = null;
return new CallbackPromiseAdapter([
'promise' => function () use (&$promise) {
if (!$promise) {
throw new \LogicException('FulfilledPromise must be resolved before obtaining the promise');
}
return $promise;
},
'resolve' => function ($value = null) use (&$promise) {
if (!$promise) {
$promise = new FulfilledPromise($value);
}
},
'reject' => function () {
throw new \LogicException('You cannot call reject() for React\Promise\FulfilledPromise');
},
'notify' => function () {
// no-op
},
'settle' => function ($value = null) use (&$promise) {
if (!$promise) {
$promise = new FulfilledPromise($value);
}
},
]);
}
/** @test */
public function shouldThrowExceptionIfConstructedWithAPromise()
{
$this->setExpectedException('\InvalidArgumentException');
return new FulfilledPromise(new FulfilledPromise());
}
/** @test */
public function shouldNotLeaveGarbageCyclesWhenRemovingLastReferenceToFulfilledPromiseWithAlwaysFollowers()
{
gc_collect_cycles();
$promise = new FulfilledPromise(1);
$promise->always(function () {
throw new \RuntimeException();
});
unset($promise);
$this->assertSame(0, gc_collect_cycles());
}
/** @test */
public function shouldNotLeaveGarbageCyclesWhenRemovingLastReferenceToFulfilledPromiseWithThenFollowers()
{
gc_collect_cycles();
$promise = new FulfilledPromise(1);
$promise = $promise->then(function () {
throw new \RuntimeException();
});
unset($promise);
$this->assertSame(0, gc_collect_cycles());
}
}