const MetaCoin = artifacts.require('./MetaCoin.sol');
const ConvertLib = artifacts.require('./ConvertLib.sol');
contract('MetaCoin', function (accounts) {
let meta;
before(async function(){
const lib = await ConvertLib.new();
MetaCoin.link(lib);
})
beforeEach(async function () {
meta = await MetaCoin.new()
meta = await MetaCoin.new()
})
afterEach(async function () {
meta = await MetaCoin.new()
meta = await MetaCoin.new()
})
it('should put 10000 MetaCoin in the first account', async function () {
const balance = await meta.getBalance.call(accounts[0])
assert.equal(balance.valueOf(), 10000, "10000 wasn't in the first account")
})
it('should call a function that depends on a linked library', function () {
var metaCoinBalance
var metaCoinEthBalance
return meta.getBalance.call(accounts[0]).then(function (outCoinBalance) {
metaCoinBalance = parseInt(outCoinBalance.toString())
return meta.getBalanceInEth.call(accounts[0])
}).then(function (outCoinBalanceEth) {
metaCoinEthBalance = parseInt(outCoinBalanceEth.toString())
}).then(function () {
assert.equal(metaCoinEthBalance, 2 * metaCoinBalance, 'Library function returned unexpected function, linkage may be broken')
})
})
it('should send coin correctly', function () {
// Get initial balances of first and second account.
var account_one = accounts[0]
var account_two = accounts[1]
var account_one_starting_balance
var account_two_starting_balance
var account_one_ending_balance
var account_two_ending_balance
var amount = 10
return meta.getBalance.call(account_one).then(function (balance) {
account_one_starting_balance = parseInt(balance.toString())
return meta.getBalance.call(account_two)
}).then(function (balance) {
account_two_starting_balance = parseInt(balance.toString())
return meta.sendCoin(account_two, amount, {from: account_one})
}).then(function () {
return meta.getBalance.call(account_one)
}).then(function (balance) {
account_one_ending_balance = parseInt(balance.toString())
return meta.getBalance.call(account_two)
}).then(function (balance) {
account_two_ending_balance = parseInt(balance.toString())
assert.equal(account_one_ending_balance, account_one_starting_balance - amount, "Amount wasn't correctly taken from the sender")
assert.equal(account_two_ending_balance, account_two_starting_balance + amount, "Amount wasn't correctly sent to the receiver")
})
})
})
