So this was a stupid mistake. I had a whole watermelon I put in a plastic re-usable shopping bag. I put the bag in a spare bedroom where I had hardwood floors installed less than a year ago because I was cleaning and it was in the way. The bag was in there for about a week because I forgot about it. At some point over that time, the watermelon started to leak. It leaked through the bag, and when I picked it up there was a puddle of syrupy watermelon juice. I quickly wiped it all up, and cleaned the floor. There is no sign of damage at this point, but will I see the damage form over time? It does look like it leaked all the way to the ceiling below this room (about a 2 inch stain in the ceiling).
A background on the floor- it was installed less than a year, pre-finished flooring and put over a pine floor. I am not sure if really leaked through the two floors, or "around it". The leak was right against the molding, and the pine floor underneath didn't go all the way to the molding, where there was about a 3/4 inch gap. Whether that really makes a difference I do not know, but I hate thinking how it went through two floors.... Since this is a new floor, I don't know whether I have false hope thinking I may have dodged a bullet since I do not currently have damage showing...
Thanks for any advice.

You got lucky that there was a place for the juice to drain. When wood slowly gets wet it will swell and the boards will touch with a little bit of pressure, preventing liquid from going through gaps between boards, so any liquid will puddle on the surface until it can spill over the edge. If you would like some insurance that the area will dry out with minimal damage then remove the trim molding, which may have had juice dribble under so everything around the "leak" can dry as soon as possible. The longer the area stays damp, there would be more damage, if it did get very wet. A hair dryer will help dry a spill immediately.

Thank you for the response. Removing the trim would be difficult as the the trim was existing and they put the floor up to it then added shoe molding. The floor seems completely dry on the surface and I have not seen any swelling and I dried the surface area completely. I guess my concern and question is, if a day has gone by and it is dry on the surface and no sign there was anything there, am I in the clear or is it possible with in a few days or longer I may see damage appear?

The trim that I hope you may remove would be the base shoe. This would allow the area to dry out that got wet. If there was enough juice to wet the ceiling below, it was pretty wet.