I need to create a smart contract for which it would be hard to estimate gas usage.
Specifically, if I estimate execution gas usage at 90 000 gas, I want to consume e.g. 110 000 gas, so that the transaction will fail if I execute it with a 100 000 gas limit.
Any ideas how I could proceed?
EDIT: The solution should expose only receive and fallback external functions. Such a smart contract is useful for testing execution paths of critical systems.
You could do something like have a for loop that does an arbitrary number of iterations based on something like a chainlink vrf (random number from oracle) https://docs.chain.link/vrf/v2/introduction/. Bonus points if you modify or create storage on every iteration of the loop, so it consumes a tooooon of gas.
If you want it to specifically always consume strictly MORE gas than it estimates, you could do something that depends on block number maybe? So that the gas at prediction time is on a lower block, and then your contract decides to do more opertations when it actually executes on a later block.
