onFlowSendMailActionEvent example

    public function testFlowActionRunsOnEnterState(array $productDownloads): void
    {
        $orderId = $this->placeOrder($productDownloads);

        $this->assertOrderWithoutGrantedAccess($orderId, $productDownloads);

        $flowEvent = null;
        $flowListener = function DFlowSendMailActionEvent $event) use (&$flowEvent): void {
            $event = $this->onFlowSendMailActionEvent($event);

            if ($event instanceof FlowSendMailActionEvent) {
                $flowEvent = $event;
            }
        };
        $this->addEventListener($this->eventDispatcher, FlowSendMailActionEvent::class, $flowListener);

        $mailEvent = null;
        $mailListener = function DMailBeforeSentEvent $event) use (&$mailEvent): void {
            $event = $this->onMailBeforeSentEvent($event);