Introduction

ERC-20 tokens are the cornerstone of the Ethereum ecosystem, serving as the standard for fungible tokens. In this blog, we will guide you through the process of coding your own ERC-20 token named "Scaleap" with the symbol "SL" using Foundry, a powerful Ethereum smart contract development framework. Additionally, we will provide Solidity-based tests to ensure your Scaleap token functions flawlessly.

Writing the Scaleap (SL) ERC-20 Token

// ScaleapToken.sol
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

contract ScaleapToken is ERC20 {
  constructor() ERC20("Scaleap", "SL") {
    _mint(msg.sender, 1000000000000000000000000); // Mint 1,000,000 SL tokens to the contract deployer (18 decimal places)
  }
}

Writing Solidity Tests for the Scaleap Token

// ScaleapToken.sol
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

contract ScaleapToken is ERC20 {
  constructor() ERC20("Scaleap", "SL") {
    _mint(msg.sender, 1000000000000000000000000); // Mint 1,000,000 SL tokens to the contract deployer (18 decimal places)
  }
}

Conclusion

You've successfully created and tested your Scaleap (SL) ERC-20 token using Foundry and Solidity. ERC-20 tokens are a fundamental part of blockchain ecosystems, and you can use them for various purposes, from creating your cryptocurrency to powering decentralized applications. Ethereum smart contract development. With your newfound knowledge, you're well-equipped to create and test ERC-20 tokens for your projects. Happy coding, and enjoy using your Scaleap tokens!