Create tests for MultisigWallet

contracts/test-helpers/MultisigWalletMock.sol

+pragma solidity ^0.4.4;
+import "../MultisigWallet.sol";
+
+contract MultisigWalletMock is MultisigWallet {
+  uint public totalSpending;
+
+  function MultisigWalletMock(address[] _owners, uint _required, uint _daylimit)
+    MultisigWallet(_owners, _required, _daylimit) { }
+
+  function changeOwner(address _from, address _to) external { }
+
+}

test/MultisigWallet.js

+contract('MultisigWallet', function(accounts) {
+  //from https://gist.github.com/xavierlepretre/88682e871f4ad07be4534ae560692ee6
+  web3.eth.getTransactionReceiptMined = function (txnHash, interval) {
+    var transactionReceiptAsync;
+    interval = interval ? interval : 500;
+    transactionReceiptAsync = function(txnHash, resolve, reject) {
+        try {
+            var receipt = web3.eth.getTransactionReceipt(txnHash);
+            if (receipt == null) {
+                setTimeout(function () {
+                    transactionReceiptAsync(txnHash, resolve, reject);
+                }, interval);
+            } else {
+                resolve(receipt);
+            }
+        } catch(e) {
+            reject(e);
+        }
+    };
+
+    if (Array.isArray(txnHash)) {
+        var promises = [];
+        txnHash.forEach(function (oneTxHash) {
+            promises.push(web3.eth.getTransactionReceiptMined(oneTxHash, interval));
+        });
+        return Promise.all(promises);
+    } else {
+        return new Promise(function (resolve, reject) {
+                transactionReceiptAsync(txnHash, resolve, reject);
+            });
+    }
+};
+
+
+  it('should send balance to passed address upon death', async function() {
+    //Give account[0] 20 ether
+    web3.eth.sendTransaction({from: web3.eth.coinbase, to: accounts[0], value: web3.toWei('20','ether')}, function(err, result) {
+      if(err)
+        console.log("ERROR:" + err);
+    });
+
+    let dailyLimit = 10;
+    let ownersRequired = 2;
+
+    //Create MultisigWallet contract with 10 ether
+    let wallet = await MultisigWalletMock.new(accounts, ownersRequired, dailyLimit, {value: web3.toWei('10', 'ether')});
+
+    //Get balances of owner and wallet after wallet creation.
+    let ownerBalance = web3.eth.getBalance(accounts[0]);
+    let walletBalance = web3.eth.getBalance(wallet.address);
+    let hash = 1234;
+
+    //Call kill function from two different owner accounts, satisfying owners required
+    await wallet.kill(accounts[0], {data: hash});
+    let txnHash = await wallet.kill(accounts[0], {from: accounts[1], data: hash});
+
+    let receiptMined = await web3.eth.getTransactionReceiptMined(txnHash);
+
+    //Get balances of owner and wallet after kill function is complete, compare with previous values
+    let newOwnerBalance = web3.eth.getBalance(accounts[0]);
+    let newWalletBalance = web3.eth.getBalance(wallet.address);
+
+    assert.isTrue(newOwnerBalance > ownerBalance);
+    assert.isTrue(newWalletBalance < walletBalance);
+  });
+
+  it('should execute transaction if below daily limit', async function() {
+    //Give account[0] 20 ether
+    web3.eth.sendTransaction({from: web3.eth.coinbase, to: accounts[0], value: web3.toWei('20','ether')}, function(err, result) {
+      if(err)
+        console.log("ERROR:" + err);
+    });
+
+    let dailyLimit = 10;
+    let ownersRequired = 2;
+
+    //Create MultisigWallet contract with 10 ether
+    let wallet = await MultisigWalletMock.new(accounts, ownersRequired, dailyLimit, {value: web3.toWei('10', 'ether')});
+
+    let accountBalance = web3.eth.getBalance(accounts[2]);
+    let hash = 1234;
+
+    //Owner account0 commands wallet to send 9 wei to account2
+    let txnHash = await wallet.execute(accounts[2], 9, hash);
+    let receiptMined = await web3.eth.getTransactionReceiptMined(txnHash);
+
+    //Balance of account2 should have increased
+    let newAccountBalance = web3.eth.getBalance(accounts[2]);
+    assert.isTrue(newAccountBalance > accountBalance);
+  });
+
+  it('should prevent execution of transaction if above daily limit', async function() {
+    //Give account[0] 20 ether
+    web3.eth.sendTransaction({from: web3.eth.coinbase, to: accounts[0], value: web3.toWei('20','ether')}, function(err, result) {
+      if(err)
+        console.log("ERROR:" + err);
+    });
+
+    let dailyLimit = 10;
+    let ownersRequired = 2;
+
+    //Create MultisigWallet contract with 10 ether
+    let wallet = await MultisigWalletMock.new(accounts, ownersRequired, dailyLimit, {value: web3.toWei('10', 'ether')});
+
+    let accountBalance = web3.eth.getBalance(accounts[2]);
+    let hash = 1234;
+
+    //Owner account0 commands wallet to send 9 wei to account2
+    let txnHash = await wallet.execute(accounts[2], 9, hash);
+    let receiptMined = await web3.eth.getTransactionReceiptMined(txnHash);
+
+    //Balance of account2 should have increased
+    let newAccountBalance = web3.eth.getBalance(accounts[2]);
+    assert.isTrue(newAccountBalance > accountBalance);
+
+    accountBalance = newAccountBalance;
+    hash = 4567;
+
+    //Owner account0 commands wallet to send 2 more wei to account2, going over the daily limit of 10
+    txnHash = await wallet.execute(accounts[2], 2, hash);
+    receiptMined = await web3.eth.getTransactionReceiptMined(txnHash);
+
+    //Balance of account2 should not change
+    newAccountBalance = web3.eth.getBalance(accounts[2]);
+    assert.equal(newAccountBalance.toString(), accountBalance.toString());
+  });
+
+  it('should execute transaction if above daily limit and enough owners approve', async function() {
+    //Give account[0] 20 ether
+    web3.eth.sendTransaction({from: web3.eth.coinbase, to: accounts[0], value: web3.toWei('20','ether')}, function(err, result) {
+      if(err)
+        console.log("ERROR:" + err);
+    });
+
+    let dailyLimit = 10;
+    let ownersRequired = 2;
+
+    //Create MultisigWallet contract with 10 ether
+    let wallet = await MultisigWalletMock.new(accounts, ownersRequired, dailyLimit, {value: web3.toWei('10', 'ether')});
+
+    let accountBalance = web3.eth.getBalance(accounts[2]);
+    let hash = 1234;
+
+    //Owner account0 commands wallet to send 11 wei to account2
+    let txnHash = await wallet.execute(accounts[2], 11, hash);
+    let receiptMined = await web3.eth.getTransactionReceiptMined(txnHash);
+
+    //Balance of account2 should not change
+    let newAccountBalance = web3.eth.getBalance(accounts[2]);
+    assert.equal(newAccountBalance.toString(), accountBalance.toString());
+
+    accountBalance = newAccountBalance;
+
+    //Owner account1 commands wallet to send 11 wei to account2
+    txnHash = await wallet.execute(accounts[2], 2, hash);
+    receiptMined = await web3.eth.getTransactionReceiptMined(txnHash);
+
+    //Balance of account2 should change
+    newAccountBalance = web3.eth.getBalance(accounts[2]);
+    assert.isTrue(newAccountBalance > accountBalance);
+  });
+
+});