NotificationIsQueued example

        self::assertThat(self::getNotificationEvents(), new NotifierConstraint\NotificationCount($count, $transportName), $message);
    }

    public static function assertQueuedNotificationCount(int $count, string $transportName = null, string $message = ''): void
    {
        self::assertThat(self::getMessageMailerEvents(), new NotifierConstraint\NotificationCount($count, $transportName, true), $message);
    }

    public static function assertNotificationIsQueued(MessageEvent $event, string $message = ''): void
    {
        self::assertThat($event, new NotifierConstraint\NotificationIsQueued(), $message);
    }

    public static function assertNotificationIsNotQueued(MessageEvent $event, string $message = ''): void
    {
        self::assertThat($event, new LogicalNot(new NotifierConstraint\NotificationIsQueued()), $message);
    }

    public static function assertNotificationSubjectContains(MessageInterface $notification, string $text, string $message = ''): void
    {
        self::assertThat($notification, new NotifierConstraint\NotificationSubjectContains($text), $message);
    }