function testTick()
{
$check = 0;
setTimeout(function () use(&$check) {
$check++;
}, 1);
nextTick(function () use(&$check) {
$check++;
});
tick();
$this->assertEquals(1, $check);
}
/**
* @param Promise $subPromise
* @param callable $callBack
* @return void
*/
private function invokeCallback(Promise $subPromise, callable $callBack = null)
{
nextTick(function () use($callBack, $subPromise) {
if (is_callable($callBack)) {
try {
$result = $callBack($this->value);
if ($result instanceof self) {
$result->then([$subPromise, 'fulfill'], [$subPromise, 'reject']);
} else {
$subPromise->fulfill($result);
}
} catch (\Exception $e) {
// If the event handler threw an exception, we need to make sure that
// the chained promise is rejected as well.
$subPromise->reject($e);
}
} else {
if ($this->state === self::FULFILLED) {
$subPromise->fulfill($this->value);
} else {
$subPromise->reject($this->value);
}
}
});
}