Historical data availability needed for hardhat-chai-matchers

[cytadela8]

🌟 Feature Request

📝 Description

Hardhat chai matchers need access to historical balances and state. If possible we should implement eth_getBalance and eth_call for historical (non-latest) blocks.

🤔 Rationale

People use changeEtherBalance and chnageTokenBalance hardhat-chai-matchers. We claim right now that hardhat-chai-matchers just work, but this is not the case

📋 Additional Context

This is the essence of implementation of .changedEtherBalance in hardhat-chai-matchers:

  const balanceAfterHex = await provider.send("eth_getBalance", [
    address,
    `0x${txBlockNumber.toString(16)}`,
  ]);

  const balanceBeforeHex = await provider.send("eth_getBalance", [
    address,
    `0x${(txBlockNumber - 1).toString(16)}`,
  ]);

[dutterbutter]

Thanks for posting @cytadela8 !

Apologies on the delay here. We currently do not have this planned and its something we currently do not support but perhaps we should considering supporting to some extent given anvil-zksync deliberate purpose to be used in testing.

We will add it to the anvil-zksync board to be discussed for next planning session.