truffle 2=>3

test/helpers/DayLimitMock.sol

@@ -0,0 +1,23 @@
+pragma solidity ^0.4.4;
+import "../../contracts/DayLimit.sol";
+
+contract DayLimitMock is DayLimit {
+  uint public totalSpending;
+
+  function DayLimitMock(uint _value) DayLimit(_value) {
+    totalSpending = 0;
+  }
+
+  function attemptSpend(uint _value) external limitedDaily(_value) {
+    totalSpending += _value;
+  }
+
+  function setDailyLimit(uint _newLimit) external {
+    _setDailyLimit(_newLimit);
+  }
+
+  function resetSpentToday() external {
+    _resetSpentToday();
+  }
+
+}