/**
*
*/
public function testPromise_SupportsVeryDeepNesting()
{
ini_set('xdebug.max_nesting_level', 8192);
$deferreds = [];
for ($i = 0; $i < 10; $i++) {
$deferreds[] = $d = new Deferred();
$p = $d->getPromise();
$last = $p;
for ($j = 0; $j < 500; $j++) {
$last = $last->then(function ($result) {
return $result;
});
}
}
$p = null;
foreach ($deferreds as $d) {
if ($p) {
$d->resolve($p);
}
$p = $d->getPromise();
}
$deferreds[0]->resolve(true);
$mock = $this->createCallableMock();
$mock->expects($this->once())->method('__invoke')->with($this->identicalTo(true));
$deferreds[0]->getPromise()->then($mock);
}
/**
*
*/
public function testApiDoResolve_SupportsDeepNestingInPromiseChains()
{
$test = $this->getTest();
$d = new Deferred();
$d->resolve(false);
$result = Promise::doResolve(Promise::doResolve($d->getPromise()->then(function ($val) {
$d = new Deferred();
$d->resolve($val);
$identity = function ($val) {
return $val;
};
return Promise::doResolve($d->getPromise()->then($identity))->then(function ($val) {
return !$val;
});
})));
$mock = $test->createCallableMock();
$mock->expects($test->once())->method('__invoke')->with($test->identicalTo(true));
$result->then($mock);
}
/**
*
*/
public function testApiCancel_CancelsPendingInputArrayPromises_IfOnePromiseFulfills()
{
$test = $this->getTest();
$deferred = new Deferred();
$deferred->resolve();
$mock = $test->createCallableMock();
$mock->expects($test->never())->method('__invoke');
$promise = $deferred->getPromise();
$promise->then(null, null, $mock);
$mock2 = $test->getMock(PromiseInterface::class);
$mock2->expects($test->once())->method('cancel');
Promise::some([$promise, $mock2], 1)->cancel();
}
/**
*
*/
public function testApiDone_ThrowsException_WithDeepNestingPromiseChains_ForRejectedPromise()
{
$test = $this->getTest();
$test->setExpectedException(Exception::class, 'UnhandledRejectionException');
$exception = new Exception('UnhandledRejectionException');
$d = new Deferred();
$d->resolve();
$result = Promise::doResolve(Promise::doResolve($d->getPromise()->then(function () use($exception) {
$d = new Deferred();
$d->resolve();
return Promise::doResolve($d->getPromise()->then(function () {
}))->then(function () use($exception) {
throw $exception;
});
})));
$result->done();
}
/**
*
*/
public function testApiReduce_ProvidesCorrectBasisValue()
{
$test = $this->getTest();
$insertIntoArray = function ($arr, $val, $i) {
$arr[$i] = $val;
return $arr;
};
$d1 = new Deferred();
$d2 = new Deferred();
$d3 = new Deferred();
$mock = $test->createCallableMock();
$mock->expects($test->once())->method('__invoke')->with($test->identicalTo([1, 2, 3]));
Promise::reduce([$d1->getPromise(), $d2->getPromise(), $d3->getPromise()], $insertIntoArray, [])->then($mock);
$d3->resolve(3);
$d1->resolve(1);
$d2->resolve(2);
}
/**
*
*/
public function testApiSome_CancelsPendingInputArrayPromises_IfEnoughPromisesReject()
{
$test = $this->getTest();
$mock = $test->createCallableMock();
$mock->expects($test->never())->method('__invoke');
$deferred = new Deferred($mock);
$deferred->reject();
$mock2 = $test->getMock(PromiseInterface::class);
$mock2->expects($test->once())->method('cancel');
Promise::some([$deferred->getPromise(), $mock2], 2);
}