How to find out all users who have reacted to a selected message in discord.js?

Question

Node.js

I check via:

testemoji = client.channels.cache.get("channel_id").messages.cache.get("message_id").reactions.cache.get("emoji_id").users.cache.has(user_id);

if (testemoji == true) { console.log("NICE!") } else { console.log("CAN'T NICE!") }

And for example, they clicked on the reaction 5 times, but it shows 0, but while the Bot is turned on and I wring it out and click on the reaction again, it sees it and counts it as 1 reaction, and the rest does not see it, but if you restart the Bot, then it again forgets and shows 0...