import latestTime from './latestTime'; // Increases ganache time by the passed duration in seconds export default function increaseTime (duration) { const id = Date.now(); return new Promise((resolve, reject) => { web3.currentProvider.sendAsync({ jsonrpc: '2.0', method: 'evm_increaseTime', params: [duration], id: id, }, err1 => { if (err1) return reject(err1); web3.currentProvider.sendAsync({ jsonrpc: '2.0', method: 'evm_mine', id: id + 1, }, (err2, res) => { return err2 ? reject(err2) : resolve(res); }); }); }); } /** * Beware that due to the need of calling two separate ganache methods and rpc calls overhead * it's hard to increase time precisely to a target point so design your test to tolerate * small fluctuations from time to time. * * @param target time in seconds */ export function increaseTimeTo (target) { let now = latestTime(); if (target < now) throw Error(`Cannot increase current time(${now}) to a moment in the past(${target})`); let diff = target - now; return increaseTime(diff); } export const duration = { seconds: function (val) { return val; }, minutes: function (val) { return val * this.seconds(60); }, hours: function (val) { return val * this.minutes(60); }, days: function (val) { return val * this.hours(24); }, weeks: function (val) { return val * this.days(7); }, years: function (val) { return val * this.days(365); }, };