Releases: iurimatias/EtherSim
EtherSim 0.4.0
What is EtherSim
EtherSim is an Ethereum simulator for testing and development purposes. It is used by several frameworks including:
Thanks
The bulk of the contributions to this release were made by Ryan Casey from MakerDAO. A big thanks to them for supporting community projects.
In this release
This releases updates to the latest ethereumjs-vm libs which fix an issue where sometimes the balance of account was not being correctly updated.
Setup
You can use Ethersim as a server (just run ethersim) or as a library:
var EtherSim = require('ethersim');
var sim = new EtherSim.init();
var Web3 = require('web3');
var web3 = new Web3();
web3.setProvider(sim.provider);Adding accounts
sim.createAccounts(10, function() {})
web3.eth.accounts //=> [..10..accounts..]Set Balance
sim.setBalance(web3.eth.accounts[0], 123450000, function() {})
web3.eth.getBalance(web3.eth.accounts[0], function(err, balance) {console.log(balance.toNumber())}) //=> 123450000
// send ether from one account to another
web3.eth.sendTransaction({value: 1000, from: web3.eth.accounts[0], to: web3.eth.accounts[1], gasLimit: 10000},function() {console.log("transaction sent")})
// mine transaction
sim.mine()Time Travel
web3.eth.getBlock('latest') // => current time
sim.jump("5 hours")
sim.mine();
web3.eth.getBlock('latest') // => will be 5 hours aheadStart Over
sim.reset()EtherSim 0.3.0
What is EtherSim
EtherSim is an Ethereum simulator for testing and development purposes. It is used by several frameworks including:
Thanks
The bulk of the contributions to this release were made by Ryan Casey from MakerDAO. A big thanks to them for supporting community projects.
In this release
Both functionalities as a server and as a lib have been greatly improved. Events are now supported as well as new functionalities.
Setup
var EtherSim = require('ethersim');
var sim = new EtherSim.init();
var Web3 = require('web3');
var web3 = new Web3();
web3.setProvider(sim.provider);Adding accounts
sim.createAccounts(10, function() {})
web3.eth.accounts //=> [..10..accounts..]Set Balance
sim.setBalance(web3.eth.accounts[0], 123450000, function() {})
web3.eth.getBalance(web3.eth.accounts[0], function(err, balance) {console.log(balance.toNumber())}) //=> 123450000
// send ether from one account to another
web3.eth.sendTransaction({value: 1000, from: web3.eth.accounts[0], to: web3.eth.accounts[1], gasLimit: 10000},function() {console.log("transaction sent")})
// mine transaction
sim.mine()Time Travel
web3.eth.getBlock('latest') // => current time
sim.jump("5 hours")
sim.mine();
web3.eth.getBlock('latest') // => will be 5 hours aheadStart Over
sim.reset()