zks_estimateFee test fails when run standalone

[vbar]

🐛 Bug Report for zkSync Era In-Memory Node

📝 Description

Specifically the "Should return fee estimation data for transfer of 1 ETH" clause gets unexpected values. The test passes (as all tests pass) when run through make test-e2e.

🔄 Reproduction Steps

Run era test node as if for e2e tests, but instead of running all tests, switch to the e2e-tests directory and run npx hardhat test --grep zks_estimateFee.

🤔 Expected Behavior

The test should pass.

😯 Current Behavior

🖥️ Environment

• Rust version: nightly-2024-01-01, as specified in rust-toolchain.toml
• Operating System & Version: Ubuntu 20.04.6

📋 Additional Context

The interference is apparently from the "hardhat_impersonateAccount & hardhat_stopImpersonatingAccount" test, which switches system contracts to their impersonating variant (and doesn't call hardhat_stopImpersonatingAccount to switch them back), which probably affects fee calculations.

📎 Log Output

'''
e2e-tests$ npx hardhat test --grep zks_estimateFee

zks_estimateFee
1) Should return fee estimation data for transfer of 1 ETH

0 passing (158ms)
1 failing

1. zks_estimateFee
   Should return fee estimation data for transfer of 1 ETH:

   Unexpected gas_limit

   • expected - actual

   {

   • "_hex": "0x598cb8"
   • "_hex": "0x3708d7"
     "_isBigNumber": true
     }

   at Context. (test/zks-apis.test.ts:33:58)
   at processTicksAndRejections (node:internal/process/task_queues:95:5)

[MexicanAce]

Resolved in #313