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openzeppelin-contracts/test/metacoin.js

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2.2 KiB

contract('MetaCoin', function(accounts) {
it("should put 10000 MetaCoin in the first account", function() {
var meta = MetaCoin.deployed();
return meta.getBalance.call(accounts[0]).then(function(balance) {
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 meta = MetaCoin.deployed();
var metaCoinBalance;
var metaCoinEthBalance;
return meta.getBalance.call(accounts[0]).then(function(outCoinBalance){
metaCoinBalance = outCoinBalance.toNumber();
return meta.getBalanceInEth.call(accounts[0]);
}).then(function(outCoinBalanceEth){
metaCoinEthBalance = outCoinBalanceEth.toNumber();
}).then(function(){
assert.equal(metaCoinEthBalance,2*metaCoinBalance,"Library function returned unexpeced function, linkage may be broken");
});
});
it("should send coin correctly", function() {
var meta = MetaCoin.deployed();
// 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 = balance.toNumber();
return meta.getBalance.call(account_two);
}).then(function(balance) {
account_two_starting_balance = balance.toNumber();
return meta.sendCoin(account_two, amount, {from: account_one});
}).then(function() {
return meta.getBalance.call(account_one);
}).then(function(balance) {
account_one_ending_balance = balance.toNumber();
return meta.getBalance.call(account_two);
}).then(function(balance) {
account_two_ending_balance = balance.toNumber();
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");
});
});
});