React\Promise\FunctionResolveTest::shouldSupportVeryDeepNestedPromises PHP Method

    public function shouldSupportVeryDeepNestedPromises()
    {
        $deferreds = [];
        for ($i = 0; $i < 250; $i++) {
            $deferreds[] = $d = new Deferred();
            $p = $d->promise();
            $last = $p;
            for ($j = 0; $j < 250; $j++) {
                $last = $last->then(function ($result) {
                    return $result;
                });
            }
        }
        $p = null;
        foreach ($deferreds as $d) {
            if ($p) {
                $d->resolve($p);
            }
            $p = $d->promise();
        }
        $deferreds[0]->resolve(true);
        $mock = $this->createCallableMock();
        $mock->expects($this->once())->method('__invoke')->with($this->identicalTo(true));
        $deferreds[0]->promise()->then($mock);
    }