truffle 2=>3

test/helpers/VestedTokenMock.sol

@@ -0,0 +1,11 @@
+pragma solidity ^0.4.4;
+
+import '../../contracts/token/VestedToken.sol';
+
+// mock class using StandardToken
+contract VestedTokenMock is VestedToken {
+  function VestedTokenMock(address initialAccount, uint initialBalance) {
+    balances[initialAccount] = initialBalance;
+    totalSupply = initialBalance;
+  }
+}