[Ethereum] Why is an ‘UNPREDICTABLE_GAS_LIMIT’ error thrown when calling a view function created from a public variable

What is the limit gas for my function?

estimateGas will return a reasonably accurate value for your tokenURI method.

(If your tokenURI method is very contrived/variable, be aware of What are the limitations to estimateGas and when would its estimate be considerably wrong?)

tokenURI method is a bit complex. I don't understand if this is a problem.

Users generally do not invoke the tokenURI method so you are usually OK.

The effect of any expensive smart contract function (including tokenURI) is less on-chain composability/interoperability with that function, possibly the whole contract.

A web2 analogy might be calling a slow, unreliable, or paid API: developers will avoid calling those APIs in preference for something faster and reliable.

And how much gas maximum it should have?

We can say that a very expensive tokenURI method would be one that consumes half the block gas limit. Even 10% of the block gas limit seems high, so I would aim for lower than 10%.

Even though tokenURIis usually only called off-chain so that its gas usage doesn't matter as much, I would not underestimate the chances that there may be creative uses of tokenURI on-chain in the future, so I would still try to be reasonable about its gas consumption.

Hello Team Have Finally Resolved It

One Has To First

    
  await hre.network.provider.request({
  method: "hardhat_impersonateAccount",
  params: [market.address],
});

Then Get The Signer Using the Following

 const signer = await ethers.getSigner(market.address);

One Can Then Use the Signer In The Connect Of The Contract Call From Within Your Hardhat Test

await media.connect(signer).functionName(1,addr2.address);

and end impersonating the contract using the following

  await hre.network.provider.request({
  method: "hardhat_stopImpersonatingAccount",
  params: [market.address],
});

I Hope This Can Help Anyone Else Facing this Issue

Thank You