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<?php
namespace React\Promise\PromiseTest;
trait PromisePendingTestTrait
{
/**
* @return \React\Promise\PromiseAdapter\PromiseAdapterInterface
*/
abstract public function getPromiseTestAdapter(callable $canceller = null);
/** @test */
public function thenShouldReturnAPromiseForPendingPromise()
{
$adapter = $this->getPromiseTestAdapter();
$this->assertInstanceOf('React\\Promise\\PromiseInterface', $adapter->promise()->then());
}
/** @test */
public function thenShouldReturnAllowNullForPendingPromise()
{
$adapter = $this->getPromiseTestAdapter();
$this->assertInstanceOf('React\\Promise\\PromiseInterface', $adapter->promise()->then(null, null, null));
}
/** @test */
public function cancelShouldReturnNullForPendingPromise()
{
$adapter = $this->getPromiseTestAdapter();
$this->assertNull($adapter->promise()->cancel());
}
/** @test */
public function doneShouldReturnNullForPendingPromise()
{
$adapter = $this->getPromiseTestAdapter();
$this->assertNull($adapter->promise()->done());
}
/** @test */
public function doneShouldReturnAllowNullForPendingPromise()
{
$adapter = $this->getPromiseTestAdapter();
$this->assertNull($adapter->promise()->done(null, null, null));
}
/** @test */
public function otherwiseShouldNotInvokeRejectionHandlerForPendingPromise()
{
$adapter = $this->getPromiseTestAdapter();
$adapter->settle();
$adapter->promise()->otherwise($this->expectCallableNever());
}
/** @test */
public function alwaysShouldReturnAPromiseForPendingPromise()
{
$adapter = $this->getPromiseTestAdapter();
$this->assertInstanceOf('React\\Promise\\PromiseInterface', $adapter->promise()->always(function () {}));
}
}