If i block someone's number then send them a text will they still get my message?

I had blocked someone's number on my iphone then forgot and i sent them a text(while they were still blocked)
i realized they were still blocked like 5 seconds after i sent it, so i unblocked them, but i don't know if they still got my text?
does anyone knows if a message will still send if you have the person blocked?
please answer

The way blocking normally works is, they can't send text or make calls to you, and your phone won't send text or make calls to them, unless you unblock them first.