Ethereum, Solidity, Python, Blockchain, Cryptocurrency.
token.balanceOf(accounts[1]) token.transfer(accounts[1], 1000, {'from': accounts[0]}) assert token.balanceOf(accounts[0]) == from_balance - 1000 assert token.balanceOf(accounts[1]) == to_balance + 1000 If you’ve ever tested a token contract, you’ve probably written a test similar to this one. It’s