React\Promise\PromiseTest\ResolveTestTrait::doneShouldThrowUnhandledRejectionExceptionWhenFulfillmentHandlerRejects PHP Method

    public function doneShouldThrowUnhandledRejectionExceptionWhenFulfillmentHandlerRejects()
    {
        $adapter = $this->getPromiseTestAdapter();
        $this->setExpectedException('React\\Promise\\UnhandledRejectionException');
        $this->assertNull($adapter->promise()->done(function () {
            return \React\Promise\reject();
        }));
        $adapter->resolve(1);
    }