Struggling with Hardhat debugging — am I missing something beyond console.log? 🤔

Andria Shines

Andria Shines

@ChainSage
Published: Oct 28, 2025
Updated: Jun 24, 2026
Views: 422

I’ve started building my first few smart contracts and use Hardhat for testing. But every time something fails, I just keep adding console.log everywhere until it magically works. It feels messy and I’m never sure why it failed in the first place.

I’ve heard seniors say debugging is about validating state changes, not just reading logs — but I don’t fully get how to do that. How do you all actually debug smart contracts efficiently?

What routine or habit helped you stop chasing ghosts in tests?

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  • ChainMentorNaina

    ChainMentorNaina

    @ChainMentorNaina • Oct 28, 2025

    My sanity saver: always compare expected state vs actual state before moving forward. I learned this the hard way when a function seemed fine but silently failed due to wrong access modifiers. Adding assert checks in both tests and during PRs made my life easier — and my reviewers happier.

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  • Shubhada Pande

    Shubhada Pande

    @ShubhadaJP • Jun 24, 2026

    I am connecting this thread with our Smart Contract Security Audits Hub because this is exactly where many junior Solidity developers first enter security thinking.

    Hardhat debugging is not only about finding why one test failed. It slowly teaches the habit auditors care about later: expected state vs actual state, access control assumptions, revert paths, event logs, balance changes, storage changes, failed permissions, edge cases, and whether the contract still behaves the way the developer thinks it behaves.

    That is why “I fixed it after adding console.log” is weaker proof than “I reproduced the failing path, checked the state before and after the transaction, confirmed which assumption was wrong, added a test for that case, and wrote down what could fail in production.”

    This is also a useful route for people moving from Solidity development, blockchain QA testing, Hardhat test debugging, smart contract security basics, audit readiness, bug reproduction, invariant thinking, and Web3 security interview preparation into smart contract auditor portfolio proof.

    Adding the parent hub here for anyone who wants to connect debugging habits with audit checklist, Solidity risks, testing evidence, QA proof, and blockchain security career direction:

    Smart Contract Security Audits Hub: Audit Checklist, Common Solidity Risks, and Auditor Roadmap | ArtofBlockchain

    One question for seniors here: when you review a junior developer’s Hardhat test suite, what gives you more confidence — clean passing tests, clear failing-case coverage, or notes explaining the wrong assumption behind the bug?


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