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Vault TDD Hardhat

A secure smart contract vault for ETH deposits and withdrawals, built with Test-Driven Development (TDD) using Hardhat. Includes strong security patterns (CEI, ReentrancyGuard) and configurable deposit limits.

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Features

• Secure deposit & withdraw with custom errors
• Min/Max deposit enforcement
• Prevent direct ETH transfers
• Owner-only configuration
• Full test suite with Hardhat & Chai
• Automated CI/CD with GitHub Actions

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Deployed Contract

The Vault contract is deployed on Sepolia testnet:

Contract Address: 0x86E694ae1d2066927A0b58F7e7bff772BB1A63b8

You can easily interact with it via Etherscan Sepolia or using Hardhat/ethers.js scripts.

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Getting Started

git clone https://github.com/arshiaHarati/vault-tdd-hardhat.git
cd vault-tdd-hardhat
npm install

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Interacting with the Contract

• Deposit ETH: Call deposit() function
• Withdraw ETH: Call withdraw(amount) function
• Owner Config: Use setMinDeposit() and setMaxDeposit() to update limits
• Read Info: Use getMinDeposit(), getMaxDeposit(), balanceOf(address) and internalTotal()