Web3 Testing

This is a solid reference for testing smart contracts with both Hardhat and Foundry, covering the patterns you'll actually use: fixtures, mainnet forking, gas reporting, and fuzzing. The code examples are practical, showing things like loadFixture for test setup, vm.prank for impersonation, and proper event assertions. It's worth using when you're setting up a test suite from scratch or need to remember the syntax for forking mainnet at a specific block. The Foundry section is leaner but hits the important cheatcodes. Missing some coverage on mocking and more advanced fuzzing strategies, but what's here will handle most contract testing scenarios you'll run into.