hardhat_mine produces block timestamps incompatible with hardhat

[Vaclav Barta]

🐛 Bug Report for zkSync Era In-Memory Node

📝 Description

Hardhat testsuite expects different timestamps in blocks produced by hardhat_mine called with an explicit interval parameter. As the results for the default interval are compatible, an error in test node is suspected.

🔄 Reproduction Steps

Run the hardhat_mine test of the modified hardhat testsuite (available at https://github.com/eqlabs/hardhat ) against the latest test node.

🤔 Expected Behavior

As the hardhat_mine is a supported API, the test should pass.

😯 Current Behavior

The test fails.

🖥️ Environment

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

📎 Log Output

$ mocha test/helpers/mine.ts -grep "should accept an interval"


  mine
    1) should accept an interval


  0 passing (507ms)
  1 failing

  1) mine
       should accept an interval:

      AssertionError: expected 59401001 to equal 60401
      + expected - actual

      -59401001
      +60401
      
      at Context.<anonymous> (test/helpers/mine.ts:54:12)
      at processTicksAndRejections (node:internal/process/task_queues:95:5)

[Vaclav Barta]

Partial (but not complete) fix is in #321 .