erc721-practice

A practice repo for working with ERC-721 tokens. There are two important things to look at: the smart contract and the tests.

The smart contract

In contracts/MyToken.sol, notice that it's only doing a few things:

1. Inheriting from OpenZeppelin's ERC721Token.sol;
2. Implementing a constructor;
3. Implementing a simple minting method.

Almost everything else is delegated to OpenZeppelin's hard work.

The tests

The tests go through a bunch of behaviours that we'd expect from an ERC-721 token. Study these well.

Note: I wrote a helper function called expectRevert to detect reverts, because I didn't want to include another library and this makes the tests relatively more readable.