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<?php
namespace React\Promise;
use React\Promise\PromiseAdapter\CallbackPromiseAdapter;
class DeferredTest extends TestCase
{
use PromiseTest\FullTestTrait;
public function getPromiseTestAdapter(callable $canceller = null)
{
$d = new Deferred($canceller);
return new CallbackPromiseAdapter([
'promise' => [$d, 'promise'],
'resolve' => [$d, 'resolve'],
'reject' => [$d, 'reject'],
'notify' => [$d, 'progress'],
'settle' => [$d, 'resolve'],
]);
}
/** @test */
public function progressIsAnAliasForNotify()
{
$deferred = new Deferred();
$sentinel = new \stdClass();
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($sentinel);
$deferred->promise()
->then($this->expectCallableNever(), $this->expectCallableNever(), $mock);
$deferred->progress($sentinel);
}
/** @test */
public function shouldRejectWithoutCreatingGarbageCyclesIfCancellerRejectsWithException()
{
gc_collect_cycles();
$deferred = new Deferred(function ($resolve, $reject) {
$reject(new \Exception('foo'));
});
$deferred->promise()->cancel();
unset($deferred);
$this->assertSame(0, gc_collect_cycles());
}
/** @test */
public function shouldRejectWithoutCreatingGarbageCyclesIfParentCancellerRejectsWithException()
{
gc_collect_cycles();
$deferred = new Deferred(function ($resolve, $reject) {
$reject(new \Exception('foo'));
});
$deferred->promise()->then()->cancel();
unset($deferred);
$this->assertSame(0, gc_collect_cycles());
}
/** @test */
public function shouldRejectWithoutCreatingGarbageCyclesIfCancellerHoldsReferenceAndExplicitlyRejectWithException()
{
gc_collect_cycles();
$deferred = new Deferred(function () use (&$deferred) { });
$deferred->reject(new \Exception('foo'));
unset($deferred);
$this->assertSame(0, gc_collect_cycles());
}
/** @test */
public function shouldNotLeaveGarbageCyclesWhenRemovingLastReferenceToPendingDeferred()
{
gc_collect_cycles();
$deferred = new Deferred();
$deferred->promise();
unset($deferred);
$this->assertSame(0, gc_collect_cycles());
}
/** @test */
public function shouldNotLeaveGarbageCyclesWhenRemovingLastReferenceToPendingDeferredWithUnusedCanceller()
{
gc_collect_cycles();
$deferred = new Deferred(function () { });
$deferred->promise();
unset($deferred);
$this->assertSame(0, gc_collect_cycles());
}
/** @test */
public function shouldNotLeaveGarbageCyclesWhenRemovingLastReferenceToPendingDeferredWithNoopCanceller()
{
gc_collect_cycles();
$deferred = new Deferred(function () { });
$deferred->promise()->cancel();
unset($deferred);
$this->assertSame(0, gc_collect_cycles());
}
}