Genuine suggestion for Riot to consider

Ok so lately i've been struggling A LOT with team mates dcing/reconnecting/afking/dying due to lag and a drop in FPS. They always say "its not my fault", "I never get lag like this" blah blah but it can cost other players the game especially in ranked.

What if riot developed an "in-client" Ping/ FPS tester without the need to go into a custom game and see what your ping is at. Players can quickly click the check button and it will give you a result of what you're looking at dealing with pretty much straight away. This would allow the majority of players to sort out the cause of their lag before entering into a game. It would be a fast and convenient way to at least minimize the risk of dealing with lag in-game.

I understand there are already various ways of testing your computers internet speed etc, but for those people who aren't so computer savvy, they could have an easy alternative and it would just become a habit to test before each game.

Meh, it's just an idea... I'm sick of losing ranked games due to people dcing and unintentionally feeding due to lag spikes and FPS drops.