Ganache snaptshots for truffle

gistfile1.js

function evmSnapshot() {
  const res = web3.currentProvider.send({
    jsonrpc: '2.0',
    method: 'evm_snapshot',
    params: [],
    id: Date.now()
  })
  // if (res.error) ... not required in sync call
  return res.result
}

function evmRevert(snapId) {
  const res = web3.currentProvider.send({
    jsonrpc: '2.0',
    method: 'evm_revert',
    params: [snapId],
    id: Date.now()
  })
  // if (res.error) ... not required in sync call
  return res.result
}